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VO2 Max
Aerobic capacity explained. What VO2 max measures, how your result compares to measured population data, and what training moves the number.
VO2 Max Explained: What Your Number Means and Where Yours Should Sit
VO2 max is one of the strongest lab measured predictors of all-cause mortality. Here is what the number is, how it compares to measured population data by age and sex, and what actually moves it.
6 min read
Training Zones From a Real Test: Why Percentage Formulas Get Yours Wrong
Heart rate formulas give you a population average and ask you to train as if it were yours. Controlled trial data shows what the difference costs.
5 min read
VO2 Max and Longevity: What the Mortality Data Actually Shows
Cardiorespiratory fitness is one of the strongest predictors of all cause mortality yet measured. Here is the size of the effect and the caveats.
5 min read
VO2 Max by Age and Sex: Where Your Number Sits
A VO2 max of 42 means nothing on its own. Percentile tables for men and women by decade, and how to read your own row.
5 min read
Watch VO2 Max Estimates vs Lab Testing: How Far Off Are They
Your watch estimates VO2 max from heart rate and pace. Validation studies show the error grows as you get fitter.
5 min read
How to Improve Your VO2 Max: What the Evidence Says Works
The training that raises aerobic capacity is specific and the timeline is measurable. What to expect over twelve weeks.
5 min read
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