What does the term MET mean? How is it useful?

A MET also is defined as oxygen uptake in ml/kg/min with one MET equal to the oxygen cost of sitting quietly, equivalent to 3.5 ml/kg/min. ... A MET is the ratio of the rate of energy expended during an activity to the rate of energy expended at rest. For example, 1 MET is the rate of energy expenditure while at rest.

Explanation:A MET is a way to measure your body's expenditure of energy. The higher the MET value of a particular activity, the more energy your muscles will need to expend to do that activity. Knowing the MET value of an activity can also be helpful in calculating how many calories you burn during exercise.