Why it works: It’s a push-up, so it’s going to work your arms, shoulders, chest, and back. And because you’re on your fingertips, you’re also strengthening your hands and grip.
How to do it: Start in a regular push-up position, then lift your palms off the floor, so only finger tips touch the floor. McCall says to do as many reps as you can in a row, switching to knees if necessary to keep good form. Aim for three sets of all-out reps.