what is your best marathon or half to date ?

what was your pace at vo2max ?

2:55 marathon last season. I haven't run a half marathon race in 2 years but it was 1:25 back then. I did run a tempo 13.1 last week in 1:25.

what was your pace at vo2max ?

The protocol ended at 6mph and 22% grade.

Isn't that a sign that either your MHR or VO2 Max are wrong (too high, too low respectively)?

It means that my Vo2 Max is potentially higher. In other words, the protocol finished before my HR peaked. I was told that to get the true number I would need to use a tougher protocol but they had never had to run any other protocol before. It wouldn't be much difference but maybe just a little bit. My HR reached 189 at the end of the protocol but my Max HR is in the mid 190s.

I had similar results to this when I did a VO2 MAX test ... We ran out of protocol before I ran out of juice. I hit 61.3.

My PRs from this year are:

5k: 17:15
10k: 35:03
HM: 1:19:31

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Awesome. That's what I was looking for. I believe they make a protocol that would find a true Max but it would probably Max most of us out pretty quick and it's not commonly used.

Was it part of a study? Why did they end the test early?

Maurice

The Kinesiology department at my school asked for me to test to give their grad students experience. The study didn't end early. It's just a set protocol. 21 minutes of increasing speed and % grade. The changes in grade and speed were automatically controls by the testing equipment. It only reads the results during that time frame though. So if you do not reach your Max HR before the test ends, you may only get a ballpark figure.

Ah OK, sounds like "bruce protocol" and they ended at stage 6, for more info:

https://www.glendaleaz.com/...ll_test_protocol.pdf

You could probably look at the progression of the test, or how you might have done and use the formulas to predict your VO2 max.

Generally if it was a test for a paying athlete you would increase just speed and not grade.

Maurice

Maybe Maurice can comment on this math

let’s say you can run the race at 80% of vo2max. that’s 49.68 ml/kg/min

at an economy of 200 ml/kg/km that’s 14.904 km/h

42.2 km / 14.904 km/h = 2.83 hr = 2h49.88min. There ya go J

according to this, an economy of 200 is a stretch
http://sportsscientists.com/...ning-economy-part-i/

from what I seen from Daniel's table, I think 80% of VO2max sounds possible.

Maurice, is this correct ?

What was your RER at the end of the test? If it was at or above 1.15 you were on borrowed time anyways and the result is close. Are you at race weight? Obviously that has a big impact on relative Vo2 and any subsequent calculations.

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I'll have to look again later but I believe RER was 1.14. I am about 5pds heavier than race weight.

So you might get another 1-2 ml/kg/min run to exhaustion and then another 2 or so from weight loss. That means you could race closer to a VO2 of 65 and your goal might be a little more realistic. Like others have said, its a simple matter of trained threshold % on race day and economy from there. You are in with a shot I guess.

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