In the first part of the study, 11 college men were asked to run on a treadmill for 60 minutes and then rest for seven hours. In the next segment, they lifted weights for 90 minutes and then rested for six and a half hours. In the final segment, participants did not exercise at all. In all three sessions, subjects were asked to rate their hunger levels at certain intervals; their ghrelin and peptide YY levels were measured at various times throughout the study.
Participants rated their hunger as suppressed after both exercise sessions, but it was rated as more suppressed after aerobic exercise.