Barbara Ainsworth, an exercise epidemiologist at San DiegoStateUniversity allows that raking leaves is a moderate physical activity. She says it helps build upper-body strength, as well as core strength, or strength in
your back and stomach. As you rake, your chest and abdominal muscles are working to stabilize your body as your arms are moving. Ainsworth states that a 135-pound person might burn approximately 240 calories per hour while raking leaves.