Stability-Ball Hamstring Curl

Heading out the door? Read this article on the new Outside+ app available now on iOS devices for members! Download the app.

Lie face up with your legs extended and your heels on top of a stability ball, legs together, arms extended along your sides. Drive your heels down into the ball as you bend your knees, lift your hips and roll the ball toward your glutes. Extend your legs slowly back to the start, touch your glutes down to the floor then go right into the next rep.