If your client's job as a surgeon has an oxygen cost of 7 METS, at approximately what percent of his VO2max is he working at on a daily basis?

To determine the percentage of VO2max at which your client is working given a MET value, you need to understand the relationship between METs and VO2max. One MET is defined as the resting metabolic rate, which is approximately 3.5 mL O2/kg/min. To convert METs into VO2max as a percentage, you can use the following formula:

Percentage of VO2max = (METs × 3.5) / VO2max × 100.

In this case, if the surgeon's job has an oxygen cost of 7 METs, this means he is expending about 7 times the resting metabolic rate. The calculation would imply that if you take the value of 7 METs and relate it to VO2max, you can compute the percentage of VO2max he is utilizing during the work.

If we assume an estimated VO2max for an average individual (for instance, around 43.5 mL O2/kg/min if we take a common average), the calculation results in the following:

1. Calculate the absolute VO2 at 7 METs:

7 METs × 3.5 mL O2/kg/min = 24.5 mL O