we all know that the post-oxygen burn (EPOC) after exercise helps to keep our metabolism up for several hours after exercise, and the harder you work out, the longer the extra burn. But did you know that harder workouts may also cause you to eat fewer calories?
A small study published in the International Journal of Obesity looked at 17 sedentary, overweight men who participated in four 30-minute exercise sessions. In one session, they only rested. In the other three they exercised on a stationary bike for a continuous moderate pace, a high intensity pace with intervals, and at a very high intensity pace with intervals. After the sessions, they were given a meal that was monitored and later given as much oatmeal as they wanted to eat.
Caloric intake was significantly lower after the high and very high intensity exercise sessions by about 200 calories, than it was after the resting session, and it was significantly lower after the very high intensity exercise session than it was after moderate exercise. Caloric consumption was also assessed for the rest of the test day as well as the following day. This showed that the men did not overcompensate by eating more once they had recovered their appetite after the harder workouts.Resource: Exercise Etc. Inc.