What is the total oxygen consumption of someone performing that activity if an activity requires a functional capacity of 6 METs?

The correct answer is the total oxygen consumption of someone performing an activity that requires a functional capacity of 6 METs is 21 mL/kg/min.

Metabolic Equivalent Task is a unit of measurement used to estimate the rate of energy used up by the body during a physical exercise. One MET is defined as the amount of oxygen consumed while sitting at rest and is equal to 3.5 ml per kg (body weight) x min.

Metabolic Equivalent Task is calculated as:
MET = Oxygen consumption/3.5
To calculate oxygen consumption = MET x 3.5
Oxygen consumption = 6 x 3.5
= 21mL/kg/min
Therefore, option is the correct answer and other options are incorrect.

To get the answer, it should be remembered that 1 MET is equal to 3.5 mL. If this will be computed to 6, the answer will be 21. MET actually stands for Metabolic Equivalent Task. This is used in order to determine the number of calories that are being used up even when the person is just sitting down.

There are some people who have fast metabolisms while there are also others who would need to work extra hard in order to lose a few pounds. Some say that when you are able to get more oxygen inside your body, your organs will work better in improving your metabolism and overall body function.