5
votes
Why is it impossible or nearly impossible to burn high levels of fat near VO2 max intensity?
The reason why it's hard to burn fat during high intensity exercise is that it's a slow and inefficient process of getting energy to the muscles. Your body will switch to using glycogen aerobically ...
- 497
4
votes
Why am I unable to run as fast as I should be able to, based on my VO2max
VO2max is the amount of oxygen which your cells are able to convert into CO2. It doesn't say anything about the anaerobic threshold, for that you need to do a Conconi test (there are many variants of ...
- 222
4
votes
Accepted
Why am I unable to run as fast as I should be able to, based on my VO2max
VO2 max is the amount of oxygen available for energy burn and is associated with runs that are shorter than 5-8 minutes total. Anything longer than this your body must deal with lactate acid buildup ...
- 1,558
4
votes
Energy expenditure (calories burned) equation for running
Pretty late to the party on this one but thought it was worth adding that the JavaScript behind the runners world calculator is pretty simple. Looking at the function toolSubmit (which is called when ...
- 51
4
votes
Accepted
Running, high HR, VO2max decreases overtime
VO2max is not super important for 10k. It's correlated with performance, but it's not a good predictor.
(Source)
Don't worry too much about HR or VO2max. You should focus on performance. If you're ...
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4
votes
If you only have two sessions a week to exercise, what type of exercise is ideal for general health?
There is no peer reviewed data on this, because the question is far too niche and the required period of observation far too long for that to be practical. No-one is running a study where they take a ...
- 14.7k
4
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Measuring VO2max on stationary bike
First, it is worth noting that non-exercise tests are especially inaccurate at determining both VO₂max and changes thereto. One study examining a host of different methods, including that described by ...
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3
votes
What level of seasonal variation in VO2 Max should I expect
It's plausible, one paper shows a ~7% worse VO2 max during winter compared to summer in healthy men.
Running is a great sport where the only participate is you and the variables are, allegedly, all ...
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3
votes
Why doesn't my Garmin VO2 max estimate agree with the Cooper test estimate?
Not an answer per se, but here's, to my knowledge, the whitepaper Garmin used for their VO2max calculations :
https://assets.firstbeat.com/firstbeat/uploads/2017/06/white_paper_VO2max_30.6.2017.pdf
...
3
votes
Formula for Rep max?
There is a handful of "accepted" formulae to calculate one's 1RM based on other xRMs. In fact, there's a nice Wikipedia article that lists them: https://en.wikipedia.org/wiki/One-...
- 18k
3
votes
Why fast before a V02 max test?
For caffeine, it is a mild stimulant. Especially if you are not used to drinking caffeine, it can artificially elevate your heart rate, and give a false reading. That is why the advisory against ...
- 23.1k
3
votes
How accurate is Garmin's VO2 max estimate?
Garmin use the VO2 data supplied to them in tabular form from the Cooper Institute, for example here is the table for age 14 females: https://www.cooperinstitute.org/vault/2440/web/files/732.pdf
You ...
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3
votes
Why do elite cyclists seem to have higher VO2 max tham elite marathon runners?
I'm not positive about the premise here. There are certainly cases of runners having cyclist like VO2 levels.
Also, cyclists are way more testing conscious. The fact of the matter is elite cycling ...
- 1,677
2
votes
Max heart rate: is it bad to train in Zone 5 for 30 mins?
I'm basing a lot of this on my own personal experience so, by all means, take it as anecdotal if you'd like.
I started exercising the week of my 34th birthday (about 8 months ago) after having ...
- 1,297
2
votes
Accepted
How can fitness trackers estimate VO2 max without knowing how hard the exercise is?
No, the fitness tracker cannot tell that exercise has changed. This will result in a skewed value.
Fitness trackers usually look at your age, weight, sex, heart rate, overall fitness level, and effort ...
- 4,609
2
votes
Accepted
What exactly do fitness guides mean when they give a relative V̇O₂max?
Yes, V̇O₂ is “the weight-normalized volume rate of oxygen that is consumed during training,” expressed in ml/min/kg, but more fundamentally, it is a metric for the time-rate of energy production. Thus,...
- 6,181
2
votes
Is it worth trying to improve my lactate threshold or should I focus on VO2 max?
The Karvonen Formula
I think the first thing to understand is that the Karvonen formula is designed as a general prescription to help individuals optimize their heart health and overall fitness. That ...
- 441
2
votes
Accepted
Does a VO2 max test have a mental discipline component?
TL;DR
A well-done lab test shows when you are not going all out. Will-power is more about where the power goes (and how much of your max power output of your individual muscles you are able to use), ...
- 1,506
2
votes
Why doesn't my Garmin VO2 max estimate agree with the Cooper test estimate?
Just to add some (hopefully) useful information - one issue is that the Cooper test estimate is highly uncertain. I got Cooper's paper from 1968
Cooper, Kenneth H. (15 January 1968). "A Means of ...
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1
vote
Correlation of %VO2max and heart rate
If you search "vo2 vs heart rate relationship graph" on Google images you'll find that the graphs look fairly linear (at least, during exercise). This would indicate that your assertion is ...
- 131
1
vote
Accepted
Zone 2 on stationary bike
It's nice that you are inquisitive about incorporating differing kinds of exercise into your coaching routine! it is important to notice that there's no direct conversion between treadmill speed and ...
1
vote
Why fast before a V02 max test?
A VO2 test essentially tests your heart and lung capacity. The lung surrounds the mediastinum and the heart and stomach are the two main organs lying within it.
Therefore, as VO2 tests make your heart ...
- 1,506
1
vote
If I'm training only for 5k, can I do mostly VO2 max training workouts?
V̇O₂max work rate can typically be held only for around 8 minutes or so, so you're not going to be racing at V̇O₂max pace. And while the pace will be "close", it's in the nature of endurance that ...
- 166
1
vote
Accepted
Converting between %VO2Max and %HRMax or %LTHR
When you perform aerobic exercise, your body utilises oxygen to perform work. As you increase the amount of work you do, the amount of oxygen used—oxygen uptake—increases until it has hit a maximum.
...
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1
vote
How do I Measure cardio fitness by heart rate?
There is actually a very easy way of checking the strength and fitness of your heart using a heart rate monitor: measure your resting heart rate. Anything below 60BPM is better than average. Below ...
- 168
1
vote
How accurate is Garmin's VO2 max estimate?
TL;DR summary: Not very - don't take the absolute value too seriously, but changes in the estimate may be a more useful guide.
There seem to be two parts to this: Firstly, it is possible to estimate ...
- 345
1
vote
VO2 max per split vs per run
V02max is more of an absolute number. Think of it like testing your max bench, or max vertical jump. It's the maximum amount of oxygen you can uptake at the time of testing. Something you can track ...
- 427
1
vote
Accepted
Is there any relationship between blood types and VO2Max?
Your question assumes that each blood type offers a different capacity to carry oxygen. Without going into scientific explanations, the easiest way to answer the question is to understand the role of ...
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