Tricep Dips
Begin with your hands under your shoulders with your fingertips facing forward. Be sure to press through your fingers to keep as much weight as possible out of your wrists. Engage your core as you hover your hips just a couple inches off of the ground. Bend your arms so that your elbows point straight behind you, and then extend your arms back to straight. Repeat this move for 10-20 reps. For more of a challenge, try extending one leg straight up directly out of your hip and repeat the same number of reps on the other side.