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Training in the Heat
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I don't want to be "the expert".
I don't want to curate this thread either.
But I think some people want a new thread on this topic.

I live and train (mostly outdoors) in Tucson. Here are some comments:

1) A short, easy workout, in very high temperatures, followed by cool water and shade- is better than most sex.

2) I suppose a little heat (and/or humidity) is just another obstacle- like hills or wind.

3) Running- in temperatures of over 105 and dry (or over 95 and humid) is unsustainable in the long (or hard) run.
Long runs require tooooo much water, toooo many salt pills. And you wind up running toooooo slow. And getting tooo tired.
And hard efforts, are a sure fire way to make yourself feel really sick. And you can't go fast anyway!!

Cycling - temperatures of over 110 (or 100 with humud) is also unsustainable.

Swimming- temperatures over 87 are unsustainable.

4) Short easy workouts add up!

5) Personally, I hate swimming in hot water the most!!!
The un-cooled swimming pools in Tucson are currently 90+ degrees.
Weirdly, the water feels cool to the skin.
But any effort at all, immediately makes you feel sick. And you get exhausted really fast.


6) Public service warning...
DEHYDRATION DANGER- I once nearly killed myself. Here is how:
I was on a 100+ mile bike ride.
It was kinda hot.
But not hot to the skin (mid 90s).
It was windy.
It was high elevation.
I was loosing water really fast.
But still felt cool.
I wasn't thirsty.
I was cycling for hours.
At some point, I started to feel bad.
I didn't analyze why. I just kept going.
After about an hour, I felt really, really bad. (And went from riding 20+ mph to 7 mph).
My heart was beating 170 bpm (without cycling at all) and I was dizzy.
Basically- my blood had turned to sludge.
I was having something very similar to a heart attach.
And would have probably died in another 30 minutes.
I bummed some water from a guy who lived in a sketchy looking trailer.
He may have saved my life!!
I drank the water and lay in the shade and eventually rode into town (without having to call an ambulance).
I am pretty sure I had some of the stress hormones related to a heart attack.
And I felt wonky for a month afterwards.

7) Being adapted to dry heat is NOT the same as being adapted to humid heat.
Dry heat-
Lot's of sweat and a large surface area of skin- cool a person quite effectively.
Dry heat adaptation is about cooling, sweating and processing water.
Humid heat-
Sweat and surface area don't help that much. The key here is to produce as little heat as possible.

8) They say "training in heat is like training at elevation." This might be true in that less oxygen is available for exercise.
In hot conditions (especially very hot and dry), lots of blood is diverted to the skin for cooling purposes. And less blood is available for exercise. The hotter, and the harder the training - the more cooling necessary!! The less blood!!

BUT.....
THIS IS KINDA STUPID!!!
The point of elevation is to LIVE at altitude, NOT to train slowly, all the time.
I believe that many of the professional running groups in Flagstaff drive down hill for their hard workouts.

Theory- maybe it is wise to treat heat like altitude. Spend as much time in it as possible. But don't skip fast, or long workouts in better conditions.

9) Lots of heat causes salt imbalances.
Salt imbalances can cause cramping and swelling/water retention.
Swelling, in turn can aggrevate injuries.

10) Magnessium, potassium, zinc, iodine (more?) salts, in addition to regular salt- are helpful.

11) Salt imbalances can also cause electrical instability in the heart.
Therefore, exercise in the heat might cause, or aggrevate, heart irregularities!!!
Personally, this doesn't concern me too much.
But it is just something to be aware of.
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
BLeP Jun 22, 21 14:05 Post #2 of 3

How does Danny Hart sit down with balls that big?
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Re: Training in the Heat [BLeP] [ In reply to ]
Velocibuddha Jun 22, 21 14:06 Post #3 of 3
Oops.
Sorry.
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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I'm just curious what other people in AZ are doing. I'm just getting back into riding and signed up for a race recently, but even in my absence, I continued running. That first two weeks of 100 is tough, followed by the burst of 110+ we usually get. It isn't so much the actual running or biking for me, since I don't bike more than 35 these days or run more than 9 miles. But its the recovery. Man, I go run 6 miles in 105 degree heat during the day, the next couple days of whatever suck. The physical impact is one thing, but the mental tiredness add insult to injury.

If only there was some button that I could push at 5:30 to get up. I mean, I used to get up early when I used to race. But my kids were really young so woke me up anyways. It became habit. Them being older, not needing to getup to ride or anything, and now covid screwing with my week day schedule (I sleep until 7:30 some morning), I just can't do it. Acclimated enough where I can do workouts that are less than an hour at lunch time. They suck, but I don't feel weak after. If I need to go long, maybe I get out at 8 and work later to make up for it. Guess I see some night time training soon.
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Re: Training in the Heat [Ozymandias] [ In reply to ]
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Last week was exceptionally brutal.

My weekly tempo run was on the treadmill (at the rock climbing gym).

The long run- was 3 miles running to the gym (102F), 16 miles on the treadmill, 3 miles running home (112 F)

Long ride - 1 hour heat (100 F), 3 hours at elevation (with hard efforts), 1 hour heat (110 F).

The rest- 3 additional runs, 6 rides (commutes) and 3 swims- done slowly in the heat.
The swims made me feel sick.

When I had kids at home....
My cycling was done at odd times on the trainer.
Running and swimming were done during kids activities.
I did manage 18 hr/wk sometimes.
But I was a single dad.
Managing my kids schedules, and my own- is probably easier than trying to coordinate with a spouse or partner.

Most of my buddies that train a lot, get up early and maxize times when kids are doing activities.
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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I've run in Vegas in 108 and Elat in 120. Some thoughts:

+1 on short workouts. In those conditions you are basically on borrowed time until your core gets too high.

Unlike races, training runs don't have aid stations to hydrate/splash yourself every mile.

In high heat I train by heart rate. The pace feels super-slow, but that's all my body can manage under those conditions.

Err on the side of caution. Trying to push that last mile when you know you're overheating can trash you and wreck your workouts for the next few days, and that's assuming something that requires medical attention doesn't happen.

Just saw this device for monitoring core body temp. Pricey ($280), but might be worth it if you train in high heat stress areas a lot. Some TdF teams seem to be experimenting with it. With time this might get built into existing watches; much the way optical HR started out as a separate device.


ECMGN Therapy Silicon Valley:
Depression, Neurocognitive problems, Dementias (Testing and Evaluation), Trauma and PTSD, Traumatic Brain Injury (TBI)
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Re: Training in the Heat [Titanflexr] [ In reply to ]
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They can call it whatever, but if you are measuring something from the skin, through the skin and subcutaneous tissues (and on a limb!)1, it doesn't matter what kind of tech manipulation you are doing with the sensors/data, it is NOT core body temperature.

You can only measure core body temperature INSIDE the body (bladder, gut).

I second your advice on monitoring HEART RATE when doing anything outdoors in the heat.

If your heart rate starts going up without increased effort/pace/power, then it's time to call it quits, go inside the AC and cool off and hydrate.

Two wheels good. Four wheels bad.
Quote Reply
Re: Training in the Heat [Velocibuddha] [ In reply to ]
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I live and train (mostly outdoors) in Tucson. Here are some comments:

1) A short, easy workout, in very high temperatures, followed by cool water and shade- is better than most sex.



I don't think you are doing sex correctly. đź


I have deceptive speed.........I'm slower than I look!
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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I live and train in Dallas, TX. Hot and Humid....but, not as stupid as Houston. No one should live in Houston, seriously.

I agree with most of what you wrote. Well, #1 is wrong.

#3 is mostly true. But, I don't agree that slow is pointless. It is about acclimation, and hydration. And there is certainly a limit. I tend to do as much as I can outside, but I'm not afraid to walk or rest...and I'm not above doing 1/2 - 2/3rd outside and finishing on the TM. I routinely do my Sat long runs starting around 10am. Maybe I do 80-90 mins outside and the balance of the 2hrs on the TM. I will frequently set a cooler at the end of my driveway and do 3-5 mile out-n-back loops past the cooler for hydration.

#4 agreed....to a point. But, 12x 4mile runs is not the same week as one with a good continuous 15ish mile long run and a couple of 10 milers. mixed with the shorter stuff. But, if 12x4 is what you can do, that's better than 3x 10milers for sure. Obviously there's a continuum between lots of tiny runs and a few long ones.

#6, yes. Dying from heat stroke is stupid. Easy to do...but, stupid.

#7 yeah. My daughter lives in colorado. We visit here in August every year. I go running in "95F" dry-heat while we are there. And, even at 5000ft altitude, and I'm typically 1+ mpm faster with a lower HR. Conversely, 75F / 90% humidity can be oppressive. Late Spring is my least favorite time of the year, because its just a constant adjustment to an ever increasing heat index.

Temperature + dew-point works better for me as an indicator of heat load than "feels like" does. Anything over 150 is hot. 160 is brutal.

#8. Kind of agree. except, training in the heat DOES force adaptation, that is harder to get by other means. Whereas training at altitude doesn't.

Quote:
Theory- maybe it is wise to treat heat like altitude. Spend as much time in it as possible. But don't skip fast, or long workouts in better conditions.

Dev and I had this conversation three years ago. That's exactly what I do, once I'm heat adapted. I do my tempo/threshold workouts on the TM, and easy runs in the heat. Heat adaptation results in better pace at cool temps. Use those paces in cool temps to drive better metabolic adaptations.

#10. Yes. Consume foods with a balance of electrolytes.
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Re: Training in the Heat [Titanflexr] [ In reply to ]
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I wonder if that monitor is helpful?

It seems that high core temperature is not a problem, until it's a big problem.

But maybe overheating is more of a progressive problem than it seems?
Quote Reply
Re: Training in the Heat [Titanflexr] [ In reply to ]
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Titanflexr wrote:
I've run in Vegas in 108 and Elat in 120. Some thoughts:

+1 on short workouts. In those conditions you are basically on borrowed time until your core gets too high.

Unlike races, training runs don't have aid stations to hydrate/splash yourself every mile.

In high heat I train by heart rate.
The pace feels super-slow, but that's all my body can manage under those conditions.

Err on the side of caution. Trying to push that last mile when you know you're overheating can trash you and wreck your workouts for the next few days, and that's assuming something that requires medical attention doesn't happen.

Just saw this device for monitoring core body temp. Pricey ($280), but might be worth it if you train in high heat stress areas a lot. Some TdF teams seem to be experimenting with it. With time this might get built into existing watches; much the way optical HR started out as a separate device.

I was wondering about this. I train by pace since heart rate stability fluctuates here in the desert after reading I should do that here on ST years ago. I see my heart rate spike in the later parts of a run when it initially gets hot, but try to maintain my Z2 pace or very close to it in Z1 unless my heart rate gets in the 160s which is well above Z4 for me. I did a 3 miler Sunday at 112 degrees and my z2 pace and hr stayed in sync. Even did a zone 4 sprint in the last mile and they both went up and down proportionate. So that suggest a level of acclimation. But always wondered if I should use pace or HR in heat. Because come october, I'll easily be able to maintain a zone 2 heart rate at a zone 4 pace for a 3 miler, and zone 1 heart rate at zone 2 pace for 6-9 miles. I don't run farther than that anymore. We'll see if I get the race bug back after this one.

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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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I got a better idea, wife wants a cabin in flag or mund's park. Problem solved, and get some altitude training in while I'm at it.
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Re: Training in the Heat [DrTriKat] [ In reply to ]
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DrTriKat wrote:
They can call it whatever, but if you are measuring something from the skin, through the skin and subcutaneous tissues (and on a limb!)1, it doesn't matter what kind of tech manipulation you are doing with the sensors/data, it is NOT core body temperature.

You can only measure core body temperature INSIDE the body (bladder, gut).

I second your advice on monitoring HEART RATE when doing anything outdoors in the heat.

If your heart rate starts going up without increased effort/pace/power, then it's time to call it quits, go inside the AC and cool off and hydrate.

Agreed that they are not measuring core temp directly. The premise is that there is a reliable transfer function between what they can measure and CBT. I saw the DCR writeup on the device (still in its beta phase): https://www.dcrainmaker.com/...hoo-integration.html . There are some graphs of the device vs. telemetric pill. However they are supplied by the company (so take the data with a grain of salt), and we don't know the test conditions. Would dumping cold water on yourself at an aid station mess up the sensor? I'd love to see some testing of this in the wild. Gotta believe that some tri pros would be experimenting with it given the ease of use and upcoming Kona prep.

ECMGN Therapy Silicon Valley:
Depression, Neurocognitive problems, Dementias (Testing and Evaluation), Trauma and PTSD, Traumatic Brain Injury (TBI)
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Re: Training in the Heat [Ozymandias] [ In reply to ]
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Ozymandias wrote:
I got a better idea, wife wants a cabin in flag or mund's park. Problem solved, and get some altitude training in while I'm at it.

I fantasize about a cabin in Alpine, Portal, Silver City, Luna, NM.

But driving time, house maintenance, maybe mortgage payments- that might take more than its worth.

Munds park and flag are really close for you.
Quote Reply
Re: Training in the Heat [Ozymandias] [ In reply to ]
Quote | Reply
Ozymandias wrote:
Titanflexr wrote:
I've run in Vegas in 108 and Elat in 120. Some thoughts:

+1 on short workouts. In those conditions you are basically on borrowed time until your core gets too high.

Unlike races, training runs don't have aid stations to hydrate/splash yourself every mile.

In high heat I train by heart rate.
The pace feels super-slow, but that's all my body can manage under those conditions.

Err on the side of caution. Trying to push that last mile when you know you're overheating can trash you and wreck your workouts for the next few days, and that's assuming something that requires medical attention doesn't happen.

Just saw this device for monitoring core body temp. Pricey ($280), but might be worth it if you train in high heat stress areas a lot. Some TdF teams seem to be experimenting with it. With time this might get built into existing watches; much the way optical HR started out as a separate device.

I was wondering about this. I train by pace since heart rate stability fluctuates here in the desert after reading I should do that here on ST years ago. I see my heart rate spike in the later parts of a run when it initially gets hot, but try to maintain my Z2 pace or very close to it in Z1 unless my heart rate gets in the 160s which is well above Z4 for me. I did a 3 miler Sunday at 112 degrees and my z2 pace and hr stayed in sync. Even did a zone 4 sprint in the last mile and they both went up and down proportionate. So that suggest a level of acclimation. But always wondered if I should use pace or HR in heat. Because come october, I'll easily be able to maintain a zone 2 heart rate at a zone 4 pace for a 3 miler, and zone 1 heart rate at zone 2 pace for 6-9 miles. I don't run farther than that anymore. We'll see if I get the race bug back after this one.

Most folks are going to experience cardiac drift during a run as their CBT goes up. I pretty much train by pace unless the heat gets extreme. It was 104 here last week and I know that an "easy" 10 at Z2 pace (based on my FTP/HR at 75 deg.) is not going to be easy enough under those conditions. If your HR during a Z2 effort is drifting up into Z4 you are no longer achieving the goal of a Z2 workout. Others can weigh in; if I drift into mid-Z3 on a Z2 day I'll back off.

ECMGN Therapy Silicon Valley:
Depression, Neurocognitive problems, Dementias (Testing and Evaluation), Trauma and PTSD, Traumatic Brain Injury (TBI)
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Re: Training in the Heat [Titanflexr] [ In reply to ]
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Titanflexr wrote:
Most folks are going to experience cardiac drift during a run as their CBT goes up. I pretty much train by pace unless the heat gets extreme. It was 104 here last week and I know that an "easy" 10 at Z2 pace (based on my FTP/HR at 75 deg.) is not going to be easy enough under those conditions. If your HR during a Z2 effort is drifting up into Z4 you are no longer achieving the goal of a Z2 workout. Others can weigh in; if I drift into mid-Z3 on a Z2 day I'll back off.

During the summer, I run based off RPE with HR (drift) as a secondary. When air_temp+dew_point > 150 my HR is +8-10 at the start of a run. In dallas the dewpoint is ~73-75. That plus 85-90F air temp = ugly. We've been in the upper 90s lately (until a cold front came through last night).

I can get about 90 minutes in before my HR drift exceeds about another 10 bpm, assuming I can hydrate adequately. As long as my legs say its "easy", I think its easy. I also let the next few days judge the success of that strategy. If I can't recover, then I'll back the pace and RPE down a smidge until I can get calibrated to the right sensations. I also look at the long term HR graph of previous workouts. Early in the season, I typically see a noticeable slope to HR over time (regardless of hydration). But, as I get more acclimated, that slope tends to plateau (again up to about 90 minutes, at which point it begins to climb without bound).
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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I'm about over summer already. Last week was brutal.

I can do 1 workout outside per day. And most days 1 indoors workout. But they thing that's killing me is the getting up between 4-4:30 every day.
I'm a 8.5-9.5 hr of night sleep individual to function. This week I feel like a walking zombie.

I should have gone back to NC for the summer. Even at 95F and 90% humidity, Raleigh is no where near as bad as Tucson. At least there you can go workout anytime of the day. The east coast summer sun is cuddly and warm, kinda like a hug from your significant other. The AZ sun seers your skin with a branding iron.

East coast summers are for pansies, AZ summers are for hardy individuals

Brian Stover USAT LII
Accelerate3 Coaching
Insta

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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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If I’m going need to be training in the heat for a long time I put ice water in my car and setup my routes with loops by my car and I can stop and cover myself in ice water and refill my bottles.
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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Made the mistake of doing a hard and hilly ride in heat index of 111 last week in Dallas. Recovery was brutal, but I feel like I'm used to it now.

"The person on top of the mountain didn't fall there." - unkown

also rule 5
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Re: Training in the Heat [desert dude] [ In reply to ]
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I moved to Charleston SC a few months ago. The heat is bad enough but the humidity is oppressive. For anything over an hour I have no choice but to slow way down, walk as needed and cut runs short.
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Re: Training in the Heat [Ozymandias] [ In reply to ]
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Ozymandias wrote:
I got a better idea, wife wants a cabin in flag or mund's park. Problem solved, and get some altitude training in while I'm at it.

Yep, I am.fortunate. Ride indoors in Phx at our primary home and enjoy rides and
Runs on weekends up in Flagstaff. Game changer when we got the Flagstaff place.
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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Velocibuddha wrote:
Theory- maybe it is wise to treat heat like altitude. Spend as much time in it as possible. But don't skip fast, or long workouts in better conditions.
This is somewhat true.

What matters is training time in heat though, unlike altitude.

Ideal training scenario for heat acclimatization:
  1. Spend most of the day in normal temperatures.
  2. Train daily for 30-120minutes in hot temps. Keep intensity low. Sweat lots. Indoor trainer ride in a hot RV with no fan is a great way to go. :) 10 days of this can make a remarkable difference in sweat concentration and thermoregulation.
  3. Do any quality / intense training in cooler temps to still get higher quality training in.

Unfortunately we can't just heat our house to 95 degrees and get heat acclimatized. Otherwise in April and May 2021 I'd have been a heat acclimatized monster because we were in an RV in Tucson and our AC units both failed. It was 90-100 most days in the RV. I didn't train much because I had a high workload that month. When I did train, I was most certainly NOT heat acclimatized. My wife however, was acclimatized very nicely because she spent 1-2 hours per day sweating on the trainer.

Dr. Alex Harrison | Founder & CEO | Sport Physiology & Performance PhD
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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I grew up in VA on the East Coast. Summers sucked. Every single morning was 75-80 degrees and 95% humidity. Absolutely no way to cool off. I’m currently deployed to a desert, one of the driest places on the planet. When I get out to run before the sun comes up, it’s about 90-95 degrees, and it hits 120-130 during the day.

Frankly, the 90-95 degrees and dry (~10% humidity) is great. I would take it any day over the humidity from back home. I don’t have a bike here and I haven’t swam in years, so I typically run for 5-7 miles in the AM and then lift or get on a C2 Erg and do steady state in the PM. The big issue I’ve been running into is I get cottonmouth within about 15mins on my morning run, without fail. Might have to start carrying water.

The other issue is sandstorms, but I don’t think I get a vote there.

"Don't you have to go be stupid somewhere else?"..."Not until 4!"
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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Do you notice that your recovery times are longer after training in the heat?

This summer more than others I’ve felt like I’m more lethargic and sore than past summers. Or maybe it’s like this for the first month every year and I just don’t remember…
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Re: Training in the Heat [boobooaboo] [ In reply to ]
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boobooaboo wrote:
Made the mistake of doing a hard and hilly ride in heat index of 111 last week in Dallas. Recovery was brutal, but I feel like I'm used to it now.
Several years ago on an August day south of Houston I had the brilliant idea of doing a 2x20 workout on the bike. The heat index was in the 105 to 110 range. First interval was fantastic, a real A+ result. After a 5 minute easy spin I was toast. Ended up having to stay home from work the next day due to lingering heat illness effects.

Now I pretty much treat Texas summers like northerners treat their winters.
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Re: Training in the Heat [tigermilk] [ In reply to ]
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My heart rate was out of control on the hills, and I laid on the couch for about 2 hours afterward. Now, it’s early mornings or nothing, and primarily swimming outside.

"The person on top of the mountain didn't fall there." - unkown

also rule 5
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Re: Training in the Heat [CBJFan] [ In reply to ]
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CBJFan wrote:
I moved to Charleston SC a few months ago. The heat is bad enough but the humidity is oppressive. For anything over an hour I have no choice but to slow way down, walk as needed and cut runs short.

Having lived in the southeast for many years I could tell you it gets better...but it doesn't.

This year was particularly bad, in that I went from needing gloves one week to a sauna a week and a half later. No spring, just welcome to the blast furnace.
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Re: Training in the Heat [mvenneta] [ In reply to ]
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mvenneta wrote:
Do you notice that your recovery times are longer after training in the heat?

Yes. I'm sure it's a confluence of being older (now in the 50-54ag), getting up between 4-4:30 most mornings to get that first workout in, being somewhat sleep deprived and the fact that as I've gotten older the trend seems to be that I tolerate heat less well and cold better.

It could also be that in the winter it's more volume based and in the summer there are more days w/higher intensity work.

Don't get old and always live where it's eternal spring or fall is my best advice.

Brian Stover USAT LII
Accelerate3 Coaching
Insta

Last edited by: desert dude: Jun 23, 21 7:43
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Re: Training in the Heat [desert dude] [ In reply to ]
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Did Du Nationals this year in Alabama. Was 91 degrees and 80% Humidity when race went off. Coming form NY there were it was 44 degrees the week before. Any advice on how to acclimate next time. One friend suggested siting in a sauna 30 minutes a day before.
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Re: Training in the Heat [boobooaboo] [ In reply to ]
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boobooaboo wrote:
My heart rate was out of control on the hills, and I laid on the couch for about 2 hours afterward. Now, it’s early mornings or nothing, and primarily swimming outside.
Even early mornings, at least here in the Houston area, are brutal as well. Pick your poison - early mornings are upper 70s with near 100% humidity, or afternoons in the upper 80s/low 90s with 50-60% humidity. I ride mornings in the summer, but even today was an z1/2 ride and I still sweat out about 6 lbs in 90 minutes. Jersey currently hanging in the shower until I can do some laundry, I can hear the drips of sweat falling off and hitting the floor.

Summers are just nasty.
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Re: Training in the Heat [Titanflexr] [ In reply to ]
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Titanflexr wrote:
I've run in Vegas in 108 and Elat in 120. Some thoughts:

+1 on short workouts. In those conditions you are basically on borrowed time until your core gets too high.

Unlike races, training runs don't have aid stations to hydrate/splash yourself every mile.

In high heat I train by heart rate. The pace feels super-slow, but that's all my body can manage under those conditions.

Err on the side of caution. Trying to push that last mile when you know you're overheating can trash you and wreck your workouts for the next few days, and that's assuming something that requires medical attention doesn't happen.

Just saw this device for monitoring core body temp. Pricey ($280), but might be worth it if you train in high heat stress areas a lot. Some TdF teams seem to be experimenting with it. With time this might get built into existing watches; much the way optical HR started out as a separate device.


I live in a hot and humid environment. We stay wet because our sweat doesn't evaporate. It sucks. I have been using Core provides some good data to crack the "heat code". I have been in the middle east too and its really hot there but dry heat is much easier to deal with than humid heat.
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Re: Training in the Heat [tigermilk] [ In reply to ]
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I’ve transitioned to late evenings for my runs longer than an hour. I usually leave for my run around 7pm. The sun doesn’t set until 830. So, I can still get in the better part of 90min - 2 hrs.

The air temp has come down a few degrees, and the humidity is still lowish. And the sun angle is low so there’s no solar load, and the shadows are long.
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Re: Training in the Heat [Rundomrun] [ In reply to ]
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It takes about 2 weeks to acclimate. Sitting in a sauna helps, but training in it works better. Running/riding on a TM/trainer without a fan, in a warmish room works ok. You need about an hour a day of exposure for 14 days to get maximal benefit.
Last edited by: Tom_hampton: Jun 23, 21 9:10
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Re: Training in the Heat [Tom_hampton] [ In reply to ]
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Thanks Tom!!
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Re: Training in the Heat [Tom_hampton] [ In reply to ]
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Tom_hampton wrote:
I live and train in Dallas, TX. Hot and Humid....but, not as stupid as Houston.

For what it is worth, I enjoy running in high (houston ) humidity. I don't want to go into the details of what I do to manage it because I think it is dangerous to do it without really knowing what you are doing. And even then, I have to be honest with myself, it comes with risks.

The only thing I don't like is the soiled clothing. I basically am as soaked as if I had jumped into a pool.
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Re: Training in the Heat [ajthomas] [ In reply to ]
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I figured someone from Houston would pipe up. Mostly just pulling y’all’s chain. I was born and raised in Dallas, and my entire family lives in Texas….about half down in the Houston area. So, there’s a long standing friendly rivalry between the northern and southern camps.

I’m probably similar….most people think I’m nuts for how I train in the high heat indexes. As you say, it takes some attention to detail and risk management.

Soiled clothes….yup. I sweat at 6 lbs and hour. I’m pretty sure it’s all still in my clothes when I’m done.
Last edited by: Tom_hampton: Jun 23, 21 9:27
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Re: Training in the Heat [Rundomrun] [ In reply to ]
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Rundomrun wrote:
..........Any advice on how to acclimate next time. One friend suggested siting in a sauna 30 minutes a day before.

You can use steam rooms, saunas, hot baths immediately post workout.
When working out you can hot box the room your in, reduce airflow over you etc. The catch here is you need to get your core temp up yet you don't want to get it so high you crush yourself

Brian Stover USAT LII
Accelerate3 Coaching
Insta

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Re: Training in the Heat [desert dude] [ In reply to ]
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Great, Thanks Brian!!
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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A friend of mine in PA built a heat-box around her treadmill to train for Badwater

She finished before the cutoff, twice

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [Rundomrun] [ In reply to ]
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Rundomrun wrote:
Did Du Nationals this year in Alabama. Was 91 degrees and 80% Humidity when race went off. Coming form NY there were it was 44 degrees the week before. Any advice on how to acclimate next time. One friend suggested siting in a sauna 30 minutes a day before.

I live in Hilton Head Island, SC and for the past several years my workouts would be wrecked from mid/late May through maybe early July. I got tired of it and bought a pvc sauna suit from Amazon and started doing 3-4 x45 minutes easy on the bike per week in it with a space heater right after my scheduled workout (body temp already slightly elevated) - beginning in late February (although could have waited to April). Either it has actually worked OR this summer has been much much milder than the past 4 June’s because my hr is lower YoY, my pace is higher YoY, and most importantly- I haven’t had to find trees to sit under for 20 minutes mid run yet where I have to contemplate how I’m going to get back home. The sauna suit certainly isn’t enjoyable, but my n=1 experiment says it’s worth it.
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Re: Training in the Heat [Tom_hampton] [ In reply to ]
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Tom_hampton wrote:
I’ve transitioned to late evenings for my runs longer than an hour. I usually leave for my run around 7pm. The sun doesn’t set until 830. So, I can still get in the better part of 90min - 2 hrs.

The air temp has come down a few degrees, and the humidity is still lowish. And the sun angle is low so there’s no solar load, and the shadows are long.

I agree with this philosophy. I live in the Phoenix area, and I don't find it easy to be out the door for a ride or run at 5:00am like many I know. But I do find that going out in the late afternoon/early evening, like the last hour of daylight or so, is usually more comfortable for me than mid-mornings after 8:00am. The temperature is typically much higher, but the sun being low on the horizon seems to make a huge difference.
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Re: Training in the Heat [mvenneta] [ In reply to ]
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mvenneta wrote:
Do you notice that your recovery times are longer after training in the heat?

This summer more than others I’ve felt like I’m more lethargic and sore than past summers. Or maybe it’s like this for the first month every year and I just don’t remember…

I always suffer recovery issues when it initially gets 100+. It can be flat out disheartening. And I wasn't even tri training. The last two years had me revisiting getting in the boxing ring until covid cancelled all the local tournaments. Unlike triathlon, boxing tournaments can be quite unpredictable. Especially for masters. You can sign up, show up, and have no opponent. Even though they try to pair before, shit happens and you show up with nothing to do. They do refund you though hahaha.

But I digress, my regiment for that was three days of boxing in the club (no ac), running a long run and a short run (outside), and power lifting (heavy and light day). The running in the heat is pervasive even with that minimal amount of exposure. After my long run, I would drag for 3 days and feel weaker the rest. It would mean strength loss, inability to put in the proper boxing gym work. But it usually worked out after 3-4 weeks.

Since getting back on the bike saddle and swimming, I'm outside a lot more. I still box an hour and a half to two hours in case an local tournament opportunity opens up. Lifting is just a thing at this point to maintain some muscle. But man, I only had a couple really bad days where a longish bike ride and a long run wiped me out a couple days. This seems to be the quickest acclimation yet. But still sucks, and always open to input.

I can't run on a treadmill more than 3 miles. I have one, but I go effing nuts if I run on it. I also have a peleton, which is good for an hour, but it isn't accurate for power. While most say it overstates power, mine understates by about 25 watts compared to my two bikes or other indoor bikes with power meters, which are consistent.
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Re: Training in the Heat [tigermilk] [ In reply to ]
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tigermilk wrote:
boobooaboo wrote:
My heart rate was out of control on the hills, and I laid on the couch for about 2 hours afterward. Now, it’s early mornings or nothing, and primarily swimming outside.

Even early mornings, at least here in the Houston area, are brutal as well. Pick your poison - early mornings are upper 70s with near 100% humidity, or afternoons in the upper 80s/low 90s with 50-60% humidity. I ride mornings in the summer, but even today was an z1/2 ride and I still sweat out about 6 lbs in 90 minutes. Jersey currently hanging in the shower until I can do some laundry, I can hear the drips of sweat falling off and hitting the floor.

Summers are just nasty.

I actually lived in florida when I started tris. It was different. While I can't say the the seasons are well defined, the build up from cold and dry to the rainy season was at least gradual enough so by the time it was in the high 90s with humidity, I was good. Racing there sucked. My worst halfs were all there. It was 95 degrees with 100% humidity when I did my first IM (Great Floridian). But it wasn't like here. AZ goes from cold to cold morning very warm evenings quickly. Then it goes from that to hell fire hot quickly, only to shuffle back a couple weeks, killing whatever acclimation you earned. Then, its just hellfire hot from 8-8 through august.

Good thing I'm racing in october. That always seems to be my PR month.
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Re: Training in the Heat [Ozymandias] [ In reply to ]
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Greetings from greater New Orleans area. I’ve lived in Tampa and Houston. Different kinds of heat. Nola is just gross. The air feels heavy and wet. It wasn’t even that hot this morning but the air was thick. I ran 52 minutes and lost 3lbs.

TrainerRoad has a podcast “the science of getting faster” and they do a deep dive on heat acclimation. It’s worth a listen. The scientist they interviewed did heat acclimation leading up to a mountain bike race in Puerto Rico (or possibly Central America). He said he severely underestimated the impacts of humidity, and didn’t work that into his protocol enough. It’s soul-sucking. One of Starky’s camps is in Tupelo MS and he said training there in the summer is good Kona prep, and it’s even hotter than Kona. And I’m 4 hours south of there.

I’m trying to start heat prep 2mo before a hot race. Either try to sit in a sauna or steam room a few times a week, or do easy recovery rides with no fans. Or recovery runs out in the elements.
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Re: Training in the Heat [Ozymandias] [ In reply to ]
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Ozymandias wrote:

Good thing I'm racing in october. That always seems to be my PR month.

I think this part is also key. While I do get out in the summer and feel somewhat acclimated, I’ve changed my racing schedule to be March to May, and then this year late September to early December. Regardless of level of acclimation, expecting to perform to expectations when you’re training in an area where the lows are in the mid to high 70s through the summer isn’t going to happen - unless of course you adjust expectations.
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Re: Training in the Heat [TJP_SBR] [ In reply to ]
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I dehydrated my first race in AZ. I had lived here 3 months at that point. More of a hydration issue. I had been in florida so long I was still on the same schedule. Needed more here.
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Re: Training in the Heat [desert dude] [ In reply to ]
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desert dude wrote:
I should have gone back to NC for the summer. Even at 95F and 90% humidity, Raleigh is no where near as bad as Tucson. At least there you can go workout anytime of the day. The east coast summer sun is cuddly and warm, kinda like a hug from your significant other. The AZ sun seers your skin with a branding iron.

East coast summers are for pansies, AZ summers are for hardy individuals

I'm surprised you would take humidity over a dry heat.

I found IMAZ easier than Cozumel. I think Arizona was 95 when I started the run while Cozumel was only low 80s.

It was impossible to cool my body at Cozumel while at Arizona I was cool every time I was dumping water on my head/neck.

This thread needs to be split between desert and midwest/south as the techniques are very different.

A 4am run in Arizona is nice, but in Alabama it might be more miserable than running at 4pm.

Swim - Bike - Run the rest is just clothing changes.
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Re: Training in the Heat [desert dude] [ In reply to ]
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desert dude wrote:
East coast summers are for pansies, AZ summers are for hardy individuals

this is not true.

I've done more AZ summers than you over the past 5 years. You are right though, it's the getting up every day at 4-4:30 without a break that gets difficult.
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Re: Training in the Heat [TJP_SBR] [ In reply to ]
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TJP_SBR wrote:
Greetings from greater New Orleans area. I’ve lived in Tampa and Houston. Different kinds of heat. Nola is just gross. The air feels heavy and wet. It wasn’t even that hot this morning but the air was thick. I ran 52 minutes and lost 3lbs.

I'm a born and raised New Orleanian and it's where my parents still live. There is almost no place worse in the country to train than New Orleans.
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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I personally like training in the heat/humidity of the summer better than the cold of the winter (on east coast US). As punishing as it can be, esp. on long or fast workouts, it makes it just that much better when the fall race season comes around and the cool dry air moves in! The key for me are routes that avoid/minimize the direct sun.
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Re: Training in the Heat [Big John] [ In reply to ]
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After a cold front passed through it was 57 degrees this morning and no humidity.
It felt so nice and so unexpected in North Carolina in late June.

It all ends Saturday morning...back to the furnace.
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Re: Training in the Heat [Big John] [ In reply to ]
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I'm a small, relatively hairless mammal, with a fairly high metabolism so the heat doesn't affect me too badly

That being said: If it's a Saturday afternoon in August and you go for a run around noontime ... If buzzards follow you as you go past the cornfield ... You might want to back it off, just a little bit

Trust me on this

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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I thought I would resurface this thread as Summer is in full swing in Texas (and most of the South and Southwest) with more brutal temps to come. That said, did my Thursday long run this am and holy crap was it rough! Was out the door and running shortly after sunrise and still lost 6 lbs (this includes drinking almost 30 fluid ounces on my run) in less than 90 mins. I am a bigger guy (6'1" 200 lbs) and a heavy sweater, but not sure if I should be forcing the longer efforts... or break up into Morning and Evening run.

Long group rides are another issue. Saturday am group ride last week (2 1/2 hours with LBS crew) had me coming home almost 10 lbs lighter (drank three bottles during the ride) than I left. So far, I have been able to recover and rehydrate reasonably well. But I have Booulder 70.3 coming up in 6-7 weeks and am looking to ramp up my training volume and intensity. With current temps and humidity... worried I am going to kill myself in the process. Any advice... besides stop being a fat a** (working on that one already)?

In search of the righteous life... we all fall down
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Re: Training in the Heat [ckoch] [ In reply to ]
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Does the heat, humidity, and dewpoint make you more sore due to dehydration? It seems I get more sore even at a lower intensity.
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Re: Training in the Heat [hhtdp0] [ In reply to ]
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hhtdp0 wrote:
Does the heat, humidity, and dewpoint make you more sore due to dehydration? It seems I get more sore even at a lower intensity.

Not really. Soreness for me is directly correlated to intensity of effort. Meaning that 800s leave me with greater soreness than 8-10 miles @ Zn2 in the heat and humidity. Same for the bike. Like I said, I try to be diligent about rehydration and fueling immediately after. I also foam roll and stretch in the evening religiously

In search of the righteous life... we all fall down
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Re: Training in the Heat [ckoch] [ In reply to ]
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I'm in the Houston area. It's hot and humid, like a lot of places in the South/Southeast. Because of my schedule, I don't do my workouts until 3 or 4pm. I slow WAY down just to keep my HR in z3 or 4. I'm 62 and not fast anyway. My open HM in Feb was 10:30 pace (PR for me).

Wednesday was a run test for me. 30' all out. Normally, I'll be around 9:30-9:45 pace. Wednesday I was 10:58, and I was happy with that.

Yesterday, after a 2k easy swim (10x150 easy intervals plus warm up and cool down), I "jogged" home the three miles. It was 99 with HI of 102 or something like that. There's little shade on this run. I "jog" for 30 minutes and then do a brisk walk the rest of the way. My 30' run pace was 13' and my HR zone got up to z5 for a bit. I almost can't run slow enough to stay in z2 with the heat. I ride with the B group on Saturday mornings in this heat.

This afternoon I have a 1 hr slow run. I'll probably start around 13' pace and see what my heart does. I'll happily slow down and even walk if I have to.

Slow, fluids, electrolytes, slow, fluids, electrolytes, slow, fluids, electrolytes... Can't say it enough. You still get the fitness benefit of being in z2 even if you're moving a lot slower.

Why am I doing this? July 10th Waco TX Oly. It'll be brutally hot and I have to be prepared for that - both physically and mentally. If it's a "cool spell" and in the 90s, I'll be fresh as a daisy.

Not a coach. Not a FOP Tri/swimmer/biker/runner. Barely a MOP AGer.
But I'm learning and making progress.
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Re: Training in the Heat [RandMart] [ In reply to ]
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Thank goodness for people who run their sprinklers at 7AM



"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [ckoch] [ In reply to ]
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I live in Fort Worth and it’s 108 every day now. I run year-round at 5:30AM but have altered my run program this summer even though the heat is generally tolerable. Instead of 6 mi/5 days per week I run 4.5 mi/6 days per week. My swim and bike have not been affected as I do both indoors.
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Re: Training in the Heat [RandMart] [ In reply to ]
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RandMart wrote:
Thank goodness for people who run their sprinklers at 7AM


^^this^^x100

Let food be thy medicine...
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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I know Brandon Mcnulty was doing some 4+ hour rides around Phoenix in June. I don’t want to jinx him but it looks like he’s riding out of his mind right now in France.
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Re: Training in the Heat [JackStraw13] [ In reply to ]
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Today is a conundrum. Forecast is terrible. It's my one freebie night per week to ride. Forecast is for 110 deg "feels like" and level 2 storms. But I'm holding out the storms pass before 6-ish and cool it off so I can ride.

My pain cave I run a fan to the 3-season room from inside to cool it off but in peak summer it just isn't cutting it.

So........it's been sucking.

I did a lunch ride yesterday with a 88 temp and feels like of 95. Had to do the RPE/HR method for some Z2 and ignore power. I'm pretty well adapted but still just despise it.
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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I do most of my training at lunch time, so the heat is just about at its worst. When running, I wet my shirt with cold water before I head out the door. This keeps me cool for at least the first mile or so. I've also started wearing a camelback with ice water. I drink some and pour some on my head, groin, other parts as needed. There are times I'll wear a longsleeve tech shirt that I'll keep wet with this cold water.

When I'm done I have to go back to work. The fastest way I've found to cool off is to drink as much ice cold water as I can as soon as I walk in the door. Then drink more ice cold water. This cools my core quickly and after I clean up I don't feel like I'm still sweating.

Good luck. It's been murder out there lately. The bike is more bearable with the air movement, but cooling with the ice water afterwards is still my go to as soon as I stop moving.

Great things never come from comfort zones.
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Re: Training in the Heat [Barry S.] [ In reply to ]
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Barry S. wrote:
I do most of my training at lunch time, so the heat is just about at its worst. When running, I wet my shirt with cold water before I head out the door. This keeps me cool for at least the first mile or so. I've also started wearing a camelback with ice water. I drink some and pour some on my head, groin, other parts as needed. There are times I'll wear a longsleeve tech shirt that I'll keep wet with this cold water.

When I'm done I have to go back to work. The fastest way I've found to cool off is to drink as much ice cold water as I can as soon as I walk in the door. Then drink more ice cold water. This cools my core quickly and after I clean up I don't feel like I'm still sweating.

Good luck. It's been murder out there lately. The bike is more bearable with the air movement, but cooling with the ice water afterwards is still my go to as soon as I stop moving.

Did another 9 miles this am and holy hell was it tough! I was out running before sunrise (6:45 am) so the temps weren't bad here in Dallas-area at that time (86F), but the humidity was off the charts. Overcast and looked like it wanted to rain (no dice), so grinded through close to 80% humidity all run. Was forced to take it easy and even walk a hill or two (shame!!) to avoid blowing up. Only saving grace, I like getting on the scale post-run and seeing how much water my fat a** sweated out. I am averaging more than 6 lbs per long run... and that includes me taking a 24 oz bottle with me! FML!

In search of the righteous life... we all fall down
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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12) Carry water with you. I prefer to hand carry a one-liter bottle, but a hydration apparatus like the Camelbacks are probably fine too.
13) Avoid the sun. Either use shaded routes or go when the sun is down (or low).
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Re: Training in the Heat [JackStraw13] [ In reply to ]
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I also thought of this old quote that I'd posted in a long-disappeared forum someplace, but Archived for my Blog [which also stopped updating about a dozen years ago]

Quote:
In South Jersey, the summer air doesn't slap you ... it smothers you with a hot pillow that's been soaking in bong water and frog shit for 3,000 years. On good days, the sky is white from humidity haze; on the bad it's orange from forest fires. The atmosphere is so saturated that if you opened a bag of Sack-Crete and randomly poured it out on your lawn, without any further preparation, you'd have a new sidewalk when you got home from work.

Whike searching to see if I'd ever posted that HERE before [nope], I found this post from another Heat Wave thread [from 2013]

https://forum.slowtwitch.com/...ost=4643466#p4643466

Quote:
Finding The Positive In Concrete Marked With Your Ass-Sweat

Quote:
... Optimism can also be good. For example, after my runs, I will often sit on my stoop, collect myself, look at the stats on my app and listen to some music without moving, which is nice. I may have mentioned before that I sweat a lot. Well, that does not exclude my ass. My ass sweats maybe more than my armpits. When I come back and sit down on the stoop, I leave a mark. A sweat mark that looks like my ass. I noticed the other day that the sweat mark I left was much smaller than it used to be. This brightened my day probably more than it should have. I even told my wife. I don't know, I was proud; I wanted people to know about it because the implication is, in case you were wondering, that my actual ass has gotten smaller and is therefore leaving a smaller sweat mark because there is less of it to be covered in sweat and then make contact with the stoop. My wife didn't seem as enthralled with my pretty scientific inferences as I was; maybe I'll put it in my twitter bio.


Some people are faucets, some people are drains, and some people are ass-shaped puddles of sweat

Just remember to re-hydrate like crazy, everyone!!! Cheers!!!

****

When I lived in Philly, and would run after work on blazing hot Summer evenings, I imagined the sweat that dripped off of me after a run sizzling on the sidewalk like grease on a griddle, as the fat within me was being liquified by the super-heated mileage and drizzling out of my pores to the sun-baked ground below

****

If you think running around outside in the heat & humidity is bad, try doing it while dealing with a Trash Strike as well!!!

http://www.philebrity.com/...bage-strike-of-1986/

http://articles.latimes.com/...news/mn-20966_1_bags



It's "wooder" Roger

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [RandMart] [ In reply to ]
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Heat paradox:

I have a concussion so I am making some questionable choices....

For instance...
"It's 108. How about I try to do my weekly hard hour of cycling. The wind will keep me cool.

I did learn...

THAT THERE IS A GIVEN TEMPERATURE, AT WHICH A GIVEN TAILWIND BECOMES AN OBSTACLE.

Example at 108F - I will ride slower in a time trial position with an 6 mph tailwind than I will ride with a 6 mph headwind.
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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Ran past two crews of landscapers and a crew of roofers this morning; gentlemen (and ladies) from "warmer climates" shall we say, wearing safety neon yellow or green cotton t-shirts, wide-brimmed straw hats, heavy gloves & boots

They looked at me like *I* was fucking nuts

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [RandMart] [ In reply to ]
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RandMart wrote:
Ran past two crews of landscapers and a crew of roofers this morning; gentlemen (and ladies) from "warmer climates" shall we say, wearing safety neon yellow or green cotton t-shirts, wide-brimmed straw hats, heavy gloves & boots

They looked at me like *I* was fucking nuts

Working for survival vs. running about for fun. Not quite the same thing...
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Re: Training in the Heat [cielo] [ In reply to ]
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Exactly - they have to be out there

I'm just an idiot

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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Velocibuddha wrote:
Heat paradox:

I have a concussion so I am making some questionable choices....

For instance...
"It's 108. How about I try to do my weekly hard hour of cycling. The wind will keep me cool.

I did learn...

THAT THERE IS A GIVEN TEMPERATURE, AT WHICH A GIVEN TAILWIND BECOMES AN OBSTACLE.

Example at 108F - I will ride slower in a time trial position with an 6 mph tailwind than I will ride with a 6 mph headwind.

Not sure how you are thinking here. Unless your body temperature is an extreme outlier, any wind at 108F will make you feel warmer, not colder. Heat goes from hot to cold which makes it hard for your body heat to go anywhere.

If you dont believe me, try bringing a fan into the sauna.
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Re: Training in the Heat [AS88] [ In reply to ]
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AS88 wrote:
Velocibuddha wrote:
Heat paradox:

I have a concussion so I am making some questionable choices....

For instance...
"It's 108. How about I try to do my weekly hard hour of cycling. The wind will keep me cool.

I did learn...

THAT THERE IS A GIVEN TEMPERATURE, AT WHICH A GIVEN TAILWIND BECOMES AN OBSTACLE.

Example at 108F - I will ride slower in a time trial position with an 6 mph tailwind than I will ride with a 6 mph headwind.


Not sure how you are thinking here. Unless your body temperature is an extreme outlier, any wind at 108F will make you feel warmer, not colder. Heat goes from hot to cold which makes it hard for your body heat to go anywhere.

If you dont believe me, try bringing a fan into the sauna.


This would be true if one didn't sweat.

Water going from liquid to gas, leaves the surface it is moving off of much cooler.

Even at 108, water evaporating makes the skin much cooler than the body temperature.
The faster the water evaporates the cooler the skin gets.

This relates to the paradox.
If there is a lot of sweat and a lot of wind there is a lot of cooling (even at 108). Less wind, less cooling more internal cooking.

There is a point at which the benefit if having a tailwind is off-set by having less wind.


Of course, non of this is true in very high humidity as sweat doesn't evaporate much.
Last edited by: Velocibuddha: Jul 23, 22 14:41
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Re: Training in the Heat [RandMart] [ In reply to ]
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https://dumbrunner.com/...rave-70-degree-temps

“It’s rough, but you’ve gotta do what you’ve gotta do,” said Charlotte Brontë, 42, a runner training for a fall marathon. “I’ve been waking up at 5:00 a.m. to do my long runs, just to miss the worst of it.”

Even that strategy, though, has its limits.

“When I started my run yesterday, at 5:45 a.m., it was already 58 degrees,” she said. “I had to remove my gloves almost immediately.”

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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With running it was always clear to me that heat lowers the pace.

Yesterday I did my long easy bike (I control that over HR: I try to stay at 125) and it was not so hot (< 30°C instead of >30°C which it had often in the last couple of weeks).
The power was about 20W higher compared to other trainings in the last couple of weeks. Can that be, that you have 20W difference only because of the heat, biking at the same intensity?
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Re: Training in the Heat [longtrousers] [ In reply to ]
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longtrousers wrote:
With running it was always clear to me that heat lowers the pace.

Yesterday I did my long easy bike (I control that over HR: I try to stay at 125) and it was not so hot (< 30°C instead of >30°C which it had often in the last couple of weeks).
The power was about 20W higher compared to other trainings in the last couple of weeks. Can that be, that you have 20W difference only because of the heat, biking at the same intensity?

Unlikely. I can't imagine the heat requiring an extra 20W to hit the same avg speed. That is unless your roads are negatively impacted by extreme heat (chip seal) and they are slower themselves. Outside of that, maybe there is another variable you aren't thinking of

In search of the righteous life... we all fall down
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Re: Training in the Heat [RandMart] [ In reply to ]
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I'm going to have to read more of the dumb runner :)
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Re: Training in the Heat [boobooaboo] [ In reply to ]
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boobooaboo wrote:
Made the mistake of doing a hard and hilly ride in heat index of 111 last week in Dallas. Recovery was brutal, but I feel like I'm used to it now.

One of the scariest moments of my life was a long ultra ride in ~120F heat in the remote Arizona desert. I was totally fine until I flatted. But then as I was changing the flat, with brutally hot asphalt reflecting heat back onto me, and a total loss of convective cooling while sitting still, things went downhill quick. Fortunately I had a buddy there, and we had a SAG car only a few miles away. But I was veering on the edge of unconsciousness, and if I've been alone, pretty sure I'd be dead.
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Re: Training in the Heat [RandMart] [ In reply to ]
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Yesterday morning was a "get in the shower with my running clothes still on" kinda morning - 80 degrees at 7AM and about the same humidity, or maybe more

Ran most of the route in the wake of a half-full trash truck - on a warm Summer morning, they can produce a fragrance like no other. Nothing could compare, however, to running around Philly after work in the middle of a heat wave in '86, during the Trash Strike, as not only did I get to enjoy the rotting garbage, but also SEPTA bus exhaust, and occasional homeless people

At some point, I wised up and altered my route to go through Center City, specifically Walnut Street, where I could run by as people were going in & out of air-conditioned buildings, producing little zephyrs of wonderfully cool air

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [trail] [ In reply to ]
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trail wrote:
boobooaboo wrote:
Made the mistake of doing a hard and hilly ride in heat index of 111 last week in Dallas. Recovery was brutal, but I feel like I'm used to it now.


One of the scariest moments of my life was a long ultra ride in ~120F heat in the remote Arizona desert. I was totally fine until I flatted. But then as I was changing the flat, with brutally hot asphalt reflecting heat back onto me, and a total loss of convective cooling while sitting still, things went downhill quick. Fortunately I had a buddy there, and we had a SAG car only a few miles away. But I was veering on the edge of unconsciousness, and if I've been alone, pretty sure I'd be dead.


It is crazy how quickly you can lose it when it is really bad. I tend to do well with heat because I cautiously ease myself in to it and for the past few years I've been living in various forms of it. Now its the high heat / high humidity stuff which is entirely new to me. Best described as "oppressive" by the weather people and I'd agree.

One occurrence as a youngster messed me up. There had been heat waves and I was playing in outdoor futbol tournaments where we'd do 3 matches a day. I was the central back and never came out of games. Toward the end of the second day I remember getting confused, walking off the pitch and thinking it was strange that I wasn't sweating. I don't remember why I was walking off the pitch at all though. I woke up some time later under a tent, in my underwear with ice all over me. Quite a confusing return to consciousness!

It took me a week to feel cognitively correct. I had a concussion later in life and the effects of these two events felt the same to me.
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Re: Training in the Heat [turdburgler] [ In reply to ]
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turdburgler wrote:
Toward the end of the second day I remember getting confused, walking off the pitch and thinking it was strange that I wasn't sweating. I don't remember why I was walking off the pitch at all though.

I wonder if, in your delirium, you imagined hearing a whistle and thinking 'that's it, time to go?'

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [RandMart] [ In reply to ]
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My coach told me he was yelling at me as I casually walked off during play until he saw my eyes and realized I wasn't there. Apparently I just sat down and went out.
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Re: Training in the Heat [turdburgler] [ In reply to ]
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Yep, that supports my "Imaginary Whistle" theory

If you had been aware of the game situation, you might've waited until a real whistle then run off and asked to be subbed out

I could be wrong, I wasn't there

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [RandMart] [ In reply to ]
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The theory adds up. This hot cold case has been closed. ;)
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Re: Training in the Heat [Velocibuddha] [ In reply to ]
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Just a few things to add: I currently live in a very hot AND humid environment. I have lived in a very hot and dry environment. The middle east.


Hot and dry, lets say 115 degrees is hot, but not near as bad or dangerous as 100 degrees and 80% humidity. Dry heat = evaporation and heat loss. Wet heat there is no evaporation and heat loss. You die faster.

Anything above a dew point of 65 and your screwed. It really doesn't matter how you train. It's all bad. Below that point you have a lot of wiggle room and you can adjust your training accordingly.

Finally...I can attest to using a Core. The thing simply works.
Last edited by: Rideon77: Aug 11, 22 6:44
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Re: Training in the Heat [Rideon77] [ In reply to ]
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For the first time in my life I tried seriously training a few days when the dew point was in the low 70s and the temp was 90F. I just have never experienced anything like it. It was almost hard to breath the air in. It didn't matter my speed or the wind, I could not evaporate sweat or dissipate heat.
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Re: Training in the Heat [turdburgler] [ In reply to ]
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On a whim [or a dare, I forget which] I ran a spur-of-the-moment 5K in Palm Springs in June, 88° at 8AM

Dry heat, my ass. Actually, it was dried salt on my ass. I could have rimmed a Gatorita glass from my shorts

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [turdburgler] [ In reply to ]
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turdburgler wrote:
For the first time in my life I tried seriously training a few days when the dew point was in the low 70s and the temp was 90F. I just have never experienced anything like it. It was almost hard to breath the air in. It didn't matter my speed or the wind, I could not evaporate sweat or dissipate heat.

On Monday it was 92 and raining/drizzling. The rain came because the cold air (92) hit warm air (98).

It was unreal.
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Re: Training in the Heat [ajthomas] [ In reply to ]
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That was something that amazed me out there

A few times, in the evening, we would see a rain shower or even a thunderstorm form in the distance. The streaks of rain would come down from the cloud, then fade away, as the heat from the desert evaporated the precipitation

There was even a rainbow once

I will admit, it was pretty cool

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [RandMart] [ In reply to ]
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https://dumbrunner.com/...nhabitable-hellscape

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A local woman woke early this morning to complete her five-mile run while temperatures were still relatively cool, Dumb Runner has learned, as the forecast called for yet another day of triple-digit highs — extreme heat that’s becoming more common due to climate change, which poses an existential threat not just to humanity but to life on earth as we know it.

“It’s good to get it done early,” said Charlene Shiherlis, 37, who is training for a fall half-marathon. “Later in the day, the heat is just brutal.”

Bonus points if you recognize her name

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [Rideon77] [ In reply to ]
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Rideon77 wrote:

Anything above a due point of 65 and your screwed. It really doesn't matter how you train. It's all bad. Below that point you have a lot of wiggle room and you can adjust your training accordingly.

Finally...I can attest to using a Core. The thing simply works.

65?!!? 65 would feel like the arctic!

I've been in 72-75 the last two months. Doesn't matter the time of day. Absolute death march just trying to run 7:45-8:00 min/mile pace (I've walked back home after just 2 miles a couple of times).

DP dropped to 67 last Sunday after a storm, and I went out and ran 3 miles at 6:30 pace for the first time since May.

This morning, dew point of 72 again. 8:00 min/pace was death. The difference is absolutely gargantuan.
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Re: Training in the Heat [turdburgler] [ In reply to ]
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turdburgler wrote:
It was almost hard to breath the air in. It didn't matter my speed or the wind, I could not evaporate sweat or dissipate heat.

This is it for me. Not the legs, my chest. I genuinely feel like I'm suffocating, and I can't get enough air.. HR is 15-20 bpm higher than a similar pace in winter.

I'm instantly sweating, and I use a CORE and my body temp at lower speeds doesn't rise very quickly after a couple of months of training in it all the time, but I just can't seem to breathe.
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Re: Training in the Heat [RandMart] [ In reply to ]
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We had some thunderstorms roll through here in the early morning. It was still drizzling and about 72* when I left the house at 6AM

I shook some rainwater off the low-hanging branches on my cool-down stroll around the block as an impromptu shower

It was glorious

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [cielo] [ In reply to ]
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Yea that really sucks.

A dew point of 65 is where sweat stops evaporating. Every point above that "feel" exponentially worse. It's a much larger suck fest compared to dry heat at a much higher temp.
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Re: Training in the Heat [cielo] [ In reply to ]
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cielo wrote:
Rideon77 wrote:


Anything above a due point of 65 and your screwed. It really doesn't matter how you train. It's all bad. Below that point you have a lot of wiggle room and you can adjust your training accordingly.

Finally...I can attest to using a Core. The thing simply works.


65?!!? 65 would feel like the arctic!

I've been in 72-75 the last two months. Doesn't matter the time of day. Absolute death march just trying to run 7:45-8:00 min/mile pace (I've walked back home after just 2 miles a couple of times).

DP dropped to 67 last Sunday after a storm, and I went out and ran 3 miles at 6:30 pace for the first time since May.

This morning, dew point of 72 again. 8:00 min/pace was death. The difference is absolutely gargantuan.

Yeah 65 would be awesome.

Long run this morning in Mississippi. Started at 5:45, temp was 75 dew point 74 humidity 96%. Par for the course this time of year. 20.5 miles at 6:20 pace, average HR was 120. You just get used to it.

Let food be thy medicine...
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Re: Training in the Heat [JackStraw13] [ In reply to ]
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JackStraw13 wrote:
cielo wrote:
Rideon77 wrote:


Anything above a due point of 65 and your screwed. It really doesn't matter how you train. It's all bad. Below that point you have a lot of wiggle room and you can adjust your training accordingly.

Finally...I can attest to using a Core. The thing simply works.


65?!!? 65 would feel like the arctic!

I've been in 72-75 the last two months. Doesn't matter the time of day. Absolute death march just trying to run 7:45-8:00 min/mile pace (I've walked back home after just 2 miles a couple of times).

DP dropped to 67 last Sunday after a storm, and I went out and ran 3 miles at 6:30 pace for the first time since May.

This morning, dew point of 72 again. 8:00 min/pace was death. The difference is absolutely gargantuan.


Yeah 65 would be awesome.

Long run this morning in Mississippi. Started at 5:45, temp was 75 dew point 74 humidity 96%. Par for the course this time of year. 20.5 miles at 6:20 pace, average HR was 120. You just get used to it.

The text book definition of a #humblebrag

In search of the righteous life... we all fall down
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Re: Training in the Heat [ In reply to ]
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Replying generally. It's been hot/humid where I am lately. Marine friend shared these guidelines.




These seem a bit conservative? e.g. Black flag condition and physical training suspended starting at 90degrees?

https://www.ready.marines.mil/...eat/Flag-Conditions/

I don't have a problem going slower when hot. Then again, that seems to happen anyway, regardless of temp :-(
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Re: Training in the Heat [40-Tude] [ In reply to ]
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A tool for finding the Marine flag conditions/WGBT from the previous post in your area: https://convergence.unc.edu/tools/wbgt/

Just a novice, but I think the numbers are a measure of heat, humidity, and other factors. Thus, 90 is not 90 degrees Fahrenheit.

A new fun tool to calculate misery.
Last edited by: apmoss: Aug 11, 22 14:05
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Re: Training in the Heat [apmoss] [ In reply to ]
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apmoss wrote:
A new fun tool to calculate misery.

Ooooooh! Just what we all need

So, just like they factor temp, humidity, wind, etc. for "Feels Like ..." temperature, could we use the RYG factors to add a multiple to the distance?

Like if you ride 20 miles, but you're in a Red situation, you can call it 22?


Just as fun side-note: we have a RYG Program Performance chart at work which we call "The Bob Marley Chart"

"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin
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Re: Training in the Heat [apmoss] [ In reply to ]
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apmoss wrote:
A tool for finding the Marine flag conditions/WGBT from the previous post in your area:
https://convergence.unc.edu/tools/wbgt/

Just a novice, but I think the numbers are a measure of heat, humidity, and other factors. Thus, 90 is not 90 degrees Fahrenheit.

A new fun tool to calculate misery.


Your are correct, and thanks for that link. A WBGT of 90 is not 90 degrees. Found the a formula for the conversion. Easy if you have a special black globe thing too. ...(or use the app)

https://perryweather.com/...do-you-calculate-it/

How to Calculate WBGT
Wet-bulb globe temperature (in Fahrenheit) is calculated with the following equation:
WBGT = (0.7 * Tw) + (0.2 * Tg) + (0.1 * T)
In this formula, there are three important variables to note:
T = Temperature in Celsius
Tg = Globe Thermometer Temperature (in Celsius) – this is measured by a thermometer placed in a special black globe to estimate solar radiation without the effects of the light itself
Tw = Wet-bulb Temperature (in Celsius)
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Re: Training in the Heat [40-Tude] [ In reply to ]
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40-Tude wrote:
apmoss wrote:
A tool for finding the Marine flag conditions/WGBT from the previous post in your area:
https://convergence.unc.edu/tools/wbgt/

Just a novice, but I think the numbers are a measure of heat, humidity, and other factors. Thus, 90 is not 90 degrees Fahrenheit.

A new fun tool to calculate misery.


Your are correct, and thanks for that link. A WBGT of 90 is not 90 degrees. Found the a formula for the conversion. Easy if you have a special black globe thing too. ...(or use the app)

https://perryweather.com/...do-you-calculate-it/

How to Calculate WBGT
Wet-bulb globe temperature (in Fahrenheit) is calculated with the following equation:
WBGT = (0.7 * Tw) + (0.2 * Tg) + (0.1 * T)
In this formula, there are three important variables to note:
T = Temperature in Celsius
Tg = Globe Thermometer Temperature (in Celsius) – this is measured by a thermometer placed in a special black globe to estimate solar radiation without the effects of the light itself
Tw = Wet-bulb Temperature (in Celsius)

No offense to you or the inventor of WBGT, but that's incredibly convoluted and makes little intuitive sense. Everybody knows temperature, humidity. I guess sunlight intensity is hard to measure, but it also changes quickly. I have no idea if a Globe Thermometer Temperature of 100 degrees is very hot or just a sunny yet cool autumn day. Wet bulb temp is a little more intuitive but still very niche.
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Re: Training in the Heat [mathematics] [ In reply to ]
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mathematics wrote:
40-Tude wrote:
apmoss wrote:
A tool for finding the Marine flag conditions/WGBT from the previous post in your area:
https://convergence.unc.edu/tools/wbgt/

Just a novice, but I think the numbers are a measure of heat, humidity, and other factors. Thus, 90 is not 90 degrees Fahrenheit.

A new fun tool to calculate misery.


Your are correct, and thanks for that link. A WBGT of 90 is not 90 degrees. Found the a formula for the conversion. Easy if you have a special black globe thing too. ...(or use the app)

https://perryweather.com/...do-you-calculate-it/

How to Calculate WBGT
Wet-bulb globe temperature (in Fahrenheit) is calculated with the following equation:
WBGT = (0.7 * Tw) + (0.2 * Tg) + (0.1 * T)
In this formula, there are three important variables to note:
T = Temperature in Celsius
Tg = Globe Thermometer Temperature (in Celsius) – this is measured by a thermometer placed in a special black globe to estimate solar radiation without the effects of the light itself
Tw = Wet-bulb Temperature (in Celsius)


No offense to you or the inventor of WBGT, but that's incredibly convoluted and makes little intuitive sense. Everybody knows temperature, humidity. I guess sunlight intensity is hard to measure, but it also changes quickly. I have no idea if a Globe Thermometer Temperature of 100 degrees is very hot or just a sunny yet cool autumn day. Wet bulb temp is a little more intuitive but still very niche.

I can imagine a Monty Pythonensque exchange....

"Damn, it's hot".
"How hot is it?"
"This gauge thing says 90".
"Well, make sure your solar radiation estimate thing correctly adjusts for the effects of light itself..... Otherwise carry on, but take it easy"
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