Medicine ball slams - Workouts for a firmer bust - IMAGE - Women's Health & Fitness

4. Medicine ball slams

Hold a medicine ball with both hands. Lift it above your head, keep feet hip-width apart and knees slightly bend. Now try to slam the ball onto the floor as hard as you can. Pick it up and do three sets of 20.

Why it works

You will find this move works your chest during the ‘slamming’ motion. The harder you slam, the harder your muscles will work. This exercise also targets your shoulders, arms and leg muscles as well. It has cardio benefits and will leave you feeling exhausted.