Problem: The physical fitness of athletes is measured by "VO2 max," which is the maximum volume of oxygen consumed by an individual during incremental exercise (for example, on a treadmill). An average male has a VO2 max of 45 mL O2/kg body mass/min, but a world-class male athlete can have a VO2 max reading of 88.0 mL O2/kg body mass/min.Calculate the volume of oxygen, in mL, consumed in 1 hr by an average man who weighs 186 lbs and has a VO2 max reading of 47.6 mL O2/kg body mass/min.

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We have to calculate the volume of oxygen gas consumed by a man in 1 hour, who weighs 186 lbs and has a VO2 max reading of 47.6 mL O2/kg body mass O2/min.


We can find the volume of oxygen gas consumed using dimensional analysis.

We need to do the following conversions:

  • Convert body weight from lb to kg units
  • Convert time from hours (h) to minutes (min)
  • Find the volume of oxygen gas consumed.
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Problem Details

The physical fitness of athletes is measured by "VO2 max," which is the maximum volume of oxygen consumed by an individual during incremental exercise (for example, on a treadmill). An average male has a VO2 max of 45 mL O2/kg body mass/min, but a world-class male athlete can have a VO2 max reading of 88.0 mL O2/kg body mass/min.

Calculate the volume of oxygen, in mL, consumed in 1 hr by an average man who weighs 186 lbs and has a VO2 max reading of 47.6 mL O2/kg body mass/min.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Dimensional Analysis concept. You can view video lessons to learn Dimensional Analysis. Or if you need more Dimensional Analysis practice, you can also practice Dimensional Analysis practice problems.