All of a sudden, I can't run. Why?

I’m still very much a beginner, only having started running in May. Prior to that I did essentially nothing at all endurance-wise, so my fitness is still very low. I keep the vast majority of my workouts pretty slow, in zone 2, as I understand I should. Last month I got to the point where I could run 5k very comfortably, feeling like I had barely exerted myself. But I just went off to college, and I can barely run anymore! I struggled running 5k a couple days ago, and when I went out today, I couldn’t run a quarter mile without stopping. My pace hasn’t changed for zone 2 workouts, I still run at the same time of day (morning), and the terrain is flatter than what I’m used to. I have some hypotheses as to what the problem is:

  1. I have went from a pasta, fruit, and vegetable heavy diet to a diet of plain chicken breast and salad. Should I go back to eating a lot of pasta and little meat? I could conceivably do it, it’s just not as convenient, which is why I haven’t.

  2. Is it just the stress of the huge change? Should I give my body and mind a couple weeks to acclimate?

  3. I walk about 2 - 3 miles a day from classes to dorms and vise versa. Would that impact anything so significantly?

Any help would be much appreciated.

(P.S. I have my bike here, but just for a little while till I settle in, I’ve decided not to ride. Just for hassle sake. Also, I don’t swim (yet), but I will start soon. Again, I haven’t yet for hassle sake.)

  1. I have went from a pasta, fruit, and vegetable heavy diet to a diet of plain chicken breast and salad. Should I go back to eating a lot of pasta and little meat? I could conceivably do it, it’s just not as convenient, which is why I haven’t.
    **Why the diet change? As an endurance athlete, carbs should anchor your diet. You don’t have to resort to pasta to get carbs. **I’m no anti-wheat zealot, but I rarely eat pasta because there are more nutritious options: fruit, sweet potatoes, yam, oats, legumes…

  2. Is it just the stress of the huge change? Should I give my body and mind a couple weeks to acclimate?
    I think that this is the most likely factor. Whether you awknowledge it or not, starting university (especially as a freshman) is incredibly stressful. Psychological and physical stress (i.e. training) are not independent; they are highly interconnected. I learned this the hard way when I tried to run varsity XC in my first year. The combined stress of school, residence, new diet and sports put a very short end to my season (like 2 weeks!). Yes, take some time to acclimate, training daily but lightly. Ramp it up once you feel comfortable. Same goes for midterms and finals.

  3. I walk about 2 - 3 miles a day from classes to dorms and vise versa. Would that impact anything so significantly?
    Doubt it.

Feel free to ask other questions or PM me. I just graduated and, although superficially I appeared to be a high achiever, I really had a pretty wretched time and hated every minute. I’m happy to share whatever “wisdom” I may have picked up along the way so that others can enjoy the experience more.

But I just went off to college, and I can barely run anymore!

Hmm, what’s changed? Two ideas:

(1) Any possibility you’re doing more sprints between the keg and the bong? I’m a firm believer in these kinds of high-intensity workouts, but you need to schedule in time for recovery.

(2) Or maybe you’re just not getting 8 hours of quality sleep anymore?

-Mud

Wow, I can’t believe nobody had said HTFU yet?

Anyway - when you say that you have to stop, is that because of pain/ lack of air/ just don’t feel like going anymore?

It’s probably more mental, since you’re only a 1/4 mile in and want to stop. Just remember that not ever day is PR - there will be some off days.

Go eat and get some sleep and I’m sure your next run will be way better.

Is your new environment different? Temp? Humidity? Altitude?

Numbers 1 and 2 seem more likely influences than number 3.
If you truly are that deficient in carbs, your energy and training) will surely take a hit.
Environmental stressors and changes are often underestimated in their impact.

One important question: Exactly why were you stopping at 1/4 mile? Pain, breathing, body fatigue, sleep deprivation (fatigue from insufficient sleep), mental …fatigue.
Precisely, why are you stopping ? This will be a better bit of info to possibly id the problem (s).

Check altitude difference. Was in Albuquerque, NM on business and did a morning run. Ugh! Really bad time. Realized later that Albuquerque is a mile high. Time was fine when back home at sea level.

Haha no… I don’t drink or smoke, even though it is UW Madison. Also I’ve been getting 8.5 - 9 hours of sleep a night.

did you stopping taking your PEDs?

My legs just felt really weak and like they were about to explode. I wasn’t going hard at all.

I think I’ll just take a week off, do some other non-endurance sports, and in that time just settle in my diet and rest mentally.

“Really weak” sounds like a central energy issue (fatigue and /or limited cho ingestion) and “about to explode” sounds a bit contradictory ? People usually use the latter to describe the feeling after hard intervals or high intensity which doesn’t apply here.
Your plan sounds good- keep moving and stabilize and all should be well.

  1. I have went from a pasta, fruit, and vegetable heavy diet to a diet of plain chicken breast and salad. Should I go back to eating a lot of pasta and little meat? I could conceivably do it, it’s just not as convenient, which is why I haven’t.

If that is not exaggerated, and the majority of your calories are actually coming from chicken breast and salad then that would be a HUGE problem and the most likely cause. I would bet money on it.

Go back to eating your old diet and you’ll probably see a huge difference.

a few years ago i had an allergic reaction to some food. It wasn’t immediate, but for the next week (after I ate it) I was DEAD tired, legs super heavy/tired, no energy to run. Took me a couple months before I figured it out.

Or it could be stress. A lot of times that will show up in weird ways and when you ‘pile’ it on it can have similar affects to training.

Go back to eating a few more carbs (pasta) on a regular basis and see how you feel.

Thanks everyone. I just went to the grocery store and got a ton of whole grain pasta, quinoa, brown rice, beans, bananas, and oatmeal. Now I have to figure out how to cook it all in a microwave.