Triceps Push-Up
Works: pectorals, deltoids, core
Form a push-up by putting your hands shoulder-width apart, keeping your arms straight, and placing your knees on the floor and your feet in the air. Hands should be closer together and under your chest than in a standard push-up.
Tighten your abs and bend your arms so that your chest moves toward the floor. Your back should be straight and your arms should be held close to your sides. Elbows must be tucked in rather than out.
Return to the beginning position with your arms extended, and repeat 8–12 times, or as many as you can.
