Hamstring curls might primarily target the hamstrings (the muscles on the backs of your thighs), but your glutes also get in on the action — especially when you do them on a stability ball like this.
How to Do a Stability Ball Hamstring Curl:
- Start by lying flat on your back with your legs extended and an exercise ball under your heels. Place your arms straight out to your side for support.
- Lift your hips a few inches off the ground. This is your starting position.
- Flex your feet and dig your heels into the ball to slowly roll the ball toward your body, bending your knees. Keep your hips lifted in a bridge position; don't thrust them toward the ceiling as you do the move.
- Pause when your knees are bent at a 90-degree angle, then slowly roll the ball away from you to return to the starting position.
- That's one rep. Do three sets of 10 reps.
