Photo: Courtesy of A.C.E.
Like classic push-ups, these work the chest, shoulders and core, but they also strengthen the triceps (and firm up jiggly under-arms) more effectively than almost any other exercise, found an ACE-funded research study.
1. Begin in a kneeling position. Place your thumbs and forefingers together in a triangle shape directly underneath your chest.
2. Now straighten your legs (or keep your legs bent with knees on the ground) so that you're in a push-up position. Engage your abdominals and slowly bend your elbows, allowing them to flare slightly outward. Lower your chest toward the floor.
3. To come up, push through the outside surface and heel of your palms until your arms are fully extended.