andydude Posted March 21, 2016 Posted March 21, 2016 Hi everyone! I came across this interesting paper at http://pure.au.dk/portal/files/14557663/UTH2004.pdf where they looked at estimating VO 2 max using maximum and resting HRs and their conclusion is that the accuracy compares favourably with other common VO2 max tests. It is given by:VO2 max = 15 x (HRmax ÷ HRrest)For the poll, if you've done a VO2 max test before, how does your test number compare with the theoretical value form the formula above? For example, I tested mine three years ago and it was 59,4 ml/min/kg and using the formula it is 56,4, thus less than 10% difference.
HappyMartin Posted March 21, 2016 Posted March 21, 2016 I had mine tested about 5 years ago. This method is within 5% of the result from that test.
andydude Posted March 21, 2016 Author Posted March 21, 2016 I had mine tested about 5 years ago. This method is within 5% of the result from that test. Thanks for sharing. I think obviously there will be outliers, but it seems to be working in general.
andydude Posted March 21, 2016 Author Posted March 21, 2016 And looking at it from the other side, you can calculate how an improvement in fitness could improve your VO2 max. Most studies show that training decreases our resting heart rate while our maximum HR is not affected by training. Therefore, if you start with a max 180 and resting 60 HR you have an estimated VO2 max of 45 ml/min/kg, but if you train and your resting HR decreases by 16,6% to 50, then your VO2 max increases to 54 ml/min/kg, or by 20%. "Regular exercise often results in a resting heart rate decrease of five to 25 beats per minute, according to exercise scientist Len Kravitz, a University of New Mexico professor. With a slower heart rate, the heart's left ventricle has more time to fill with blood and more time to deliver oxygen and nutrients to the body and heart muscle. As a result, the heart becomes more efficient at meeting your body’s needs for energy and oxygen." "It has also been demonstrated that max. HR does not increase/decrease with training. It only decreases with age." *However, VO2 max generally does not vary linearly with body mass, either among individuals within a species or among species
Stricker Posted March 22, 2016 Posted March 22, 2016 Never done a test, but based on this formula I have a nice V02 max but I still get dropped when racing Take it number are only numbers
Patchelicious Posted March 22, 2016 Posted March 22, 2016 10% difference. I get very nervous when anything with HR is used to generate "numbers".Such variable little bastards these HR things are. I would be comfortable if the variance was less than 2-3%. Ps: Besides a baseline, I have yet to actually find a practical use for the V02Max number?
Halfdoesyn Posted March 22, 2016 Posted March 22, 2016 Never had a VO2 max test, but do it from time to time with my Polar M400's "Fitness Test". It records your heart rate at rest for a few minutes and comes up with a VO2 max. This value however is lower than using the OP's formula by about 9% in my case. I believe Polar measures not only your resting heart rate, but also the variability in your resting heart rate.
andydude Posted March 22, 2016 Author Posted March 22, 2016 10% difference. I get very nervous when anything with HR is used to generate "numbers".Such variable little bastards these HR things are. I would be comfortable if the variance was less than 2-3%. Ps: Besides a baseline, I have yet to actually find a practical use for the V02Max number? Yeah agree completely with you. I read about that paper and formula somewhere and just found it interesting that it could be so simple to calculate and that it seems quite accurate; "compares favourably with other common VO2 max tests" A few interesting thoughts regarind the question of whether it's useful, from http://runnersconnect.net/running-training-articles/is-vo2-max-worth-spending-for/ Among a group of runners with the same VO2 max, you’ll see a wide variety in their PRs.While elite runners do indeed have very VO2 maxes, the ones with the highest VO2 max aren’t always the fastest. A better measure of fitness which takes efficiency into account is how fast you were running when you hit your VO2 max. This is known as your velocity at VO2 max, sometimes denoted vVO2 max. Unfortunately, you won’t always get this parameter when you do a VO2 max test, because some testing protocols ramp up the challenge by increasing the slope of the treadmill instead of speeding it up. Velocity at VO2 max is a pretty useful metric. It’s a great speed to do interval workouts at because, as you might guess, running at VO2 max pace is a great way to improve your VO2 max. And some training programs base all of their workouts on percentages of VO2 max, just like heart rate training programs base workouts on max heart rate. It also gives you a hard, inarguable, numeric answer to the question of “how fast should I run in my workouts?”If you’re short on motivation, knowing what you are physiologically capable of can keep you honest on interval days.
V12man Posted March 22, 2016 Posted March 22, 2016 Hi everyone! I came across this interesting paper at http://pure.au.dk/portal/files/14557663/UTH2004.pdf where they looked at estimating VO 2 max using maximum and resting HRs and their conclusion is that the accuracy compares favourably with other common VO2 max tests. It is given by:VO2 max = 15 x (HRmax ÷ HRrest)For the poll, if you've done a VO2 max test before, how does your test number compare with the theoretical value form the formula above? For example, I tested mine three years ago and it was 59,4 ml/min/kg and using the formula it is 56,4, thus less than 10% difference.There is very little relationship between VO2max and actually performance in races - why even worry about it except as a relative mesure of your training state?
raptor-22 Posted March 22, 2016 Posted March 22, 2016 There is very little relationship between VO2max and actually performance in races - why even worry about it except as a relative mesure of your training state? What you mean??!!! Lance is innocent!??
andydude Posted March 22, 2016 Author Posted March 22, 2016 There is very little relationship between VO2max and actually performance in races - why even worry about it except as a relative mesure of your training state? It was just interesting to me and I'm not saying it's the end-all for perforamance. From what I've read the relationship is not "very little", but yes, it's not the magic number that predicts performance. Here is for example rowing, VO2 max and performance...
V12man Posted March 22, 2016 Posted March 22, 2016 It was just interesting to me and I'm not saying it's the end-all for perforamance. From what I've read the relationship is not "very little", but yes, it's not the magic number that predicts performance. Here is for example rowing, VO2 max and performance...That does not show anything about RACE performance - only that the harder (watts) you work, the more oxygen you use - a somewhat self evident result.... You will also see that people have different VO2max numbers depending on the test used - so cycling, running, rowing all generate different numbers for the same individual (statistcally significant differences). Let me give you a personalised example (worth a laugh at most) - my own measured VO2max/kg was EXACTLY the same as Zithulele Sinqe (same lab, same treadmill, same day, same tester) - but he could kick my ass every day of the week in anything over 200m (and he regularly (i.e. always) did during our lunchtime runs back in the 80's when I was a student) On a rowing ergometer I could always generate a much higher results than him - but given that neither of us could row worth a damn - we never tested that in a race.
Frosty Posted March 22, 2016 Posted March 22, 2016 In my VO2max test, they give a value for Peak RER (Respiratory Exchange Ratio). When I questioned the guy doing the test, he couldn't explain it to me, and would find out. He never came back to me and I never bothered about it further. In the notes it refers to Peak RER as:the relationship between the amount of O2 inhaled and CO2 exhaled in one breath. It can predict the proportion of which fuel your body is using for energy (fats vs carbs). It can also give an idea of how hard an athlete has pushed during a bout of exercise. Edit: posted too quickly. I'd be interested to know the bit about "predicting the proportion of which fuel (fats vs carbs)."
Patchelicious Posted March 22, 2016 Posted March 22, 2016 In my VO2max test, they give a value for Peak RER (Respiratory Exchange Ratio). When I questioned the guy doing the test, he couldn't explain it to me, and would find out. He never came back to me and I never bothered about it further. In the notes it refers to Peak RER as:the relationship between the amount of O2 inhaled and CO2 exhaled in one breath. It can predict the proportion of which fuel your body is using for energy (fats vs carbs). It can also give an idea of how hard an athlete has pushed during a bout of exercise. Edit: posted too quickly. I'd be interested to know the bit about "predicting the proportion of which fuel (fats vs carbs)."This is a test that I am keen to do. Want to know at what wattages one moves from one energy source to another....Found a place, will give feedback once done.
Stricker Posted March 22, 2016 Posted March 22, 2016 Correct me if I am wrong. V02 max is trainable.So if one have reached you max V02 ( ceiling level) and you are still slow( max amount of training) , does that mean you cant get any faster?
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