Definition
Maximal oxygen uptake (VO2 max) refers to the maximum rate that oxygen can be consumed during intense exercise. It measures aerobic fitness and endurance capacity.
Explanation
- VO2 max indicates the efficiency of the lungs, heart and cardiovascular system in delivering oxygen to working muscles.
- Higher VO2 max values correspond to greater endurance performance. It’s measured in milliliters of oxygen per kg of bodyweight per minute.
- Athletes use VO2 max to gauge fitness gains from training and determine intensities for workouts based on percentage of VO2 max speed or heart rate.
- VO2 max is increased by doing high intensity interval and tempo training. Genetics impact natural VO2 max levels.
Examples
- A VO2 max of 45 ml/kg/min is considered excellent for a young athlete.
- Improving VO2 max from 40 to 50 ml/kg/min after a period of sprint intervals.
Related Terms
- Aerobic capacity, cardiovascular endurance, anaerobic threshold, lactate threshold
Common Questions
- How can I estimate my VO2 max? Use pace calculators, heart rate data, or run tests based on your training intensities.
- Is higher always better? Within reason, but extremely high VO2 max levels beyond natural potential have limited benefits.
Do Not Confuse With
- Cardiac output – The amount of blood the heart can pump per minute. Related but different.
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