By
eHow Sports & Fitness Editor
Difficulty: Moderately Challenging
Step1
Place two medicine balls on the floor. Place them shoulder width apart so that when you put your hands down on them, you're in proper push-up position.
Step2
Get yourself into a regular push-up position. Put the weight of your legs onto on the balls of your feet rather than your toes. Pull your abs tight in toward your spine to protect your back. Picture a board laying across the top of your back as you begin your push-ups. Keep your body straight.
Step3
Lower yourself down as far as you can go without allowing your chest to stop and rest on the floor. Inhale on your way down. Exhale as you push back up to your starting position. Do not lock your elbows.
Step4
Vary this exercise by using only one medicine ball. Place one hand on the ball and the other hand on the floor. Perform a push-up, focusing on pushing through your chest on the side that the ball is supporting.
Step5
Challenge yourself further by doing explosive medicine ball push-ups. Begin push-ups as you would when using one medicine ball. Push up explosively and land with your other hand on the ball as your body is in the up position. Repeat the motion, switching sides during each push-up.