How are calories burned during exercise calculated?
Calories burned are calculated using MET (Metabolic Equivalent of Task) values. The formula is: Calories = MET x weight in kg x duration in hours. MET represents the energy cost of an activity relative to resting. Sitting has a MET of 1, walking briskly is about 3.5, and running at 6 mph is about 10. For example, a 150-lb person running for 30 minutes at moderate intensity (MET 8): 8 x 68 kg x 0.5 hours = 272 calories burned.