Exercise of the Week: One-Leg Press on the Ball

Nothing works the hips, glutes and thighs better than one-legged moves and the One-Leg Press on the Ball is one of my favorites. Not only does it challenge the working leg, but you'll also get quite a bit of ab and stabilizer work since this move requires tremendous balance. The key is to keep the knee behind the toe and to push into the floor with your heel, not your toe.

Do it Right:

• Begin in an incline position on the ball, right knee bent and the left leg straight out and either lifted (harder) or lightly resting on the floor.
• Push through the heel of your right foot to push back and up on the ball (as in a leg press).
• As you press up, drag that left heel on the floor or keep the leg lifted the entire time.
• Lower and repeat for 1-3 sets of 10-16 reps.