2A Swiss-Ball Leg Curl
Sets: 2-3 Reps: 15 Tempo: 311 Rest: 0 Seconds
Lie flat on your back with arms out to your sides, palms up, and your heels resting on a Swiss ball. Contract your glutes to drive your heels into the ball, extending your hips until they are suspended in the air . Contract your hamstrings to bend your knees, rolling the ball toward your body . Slowly straighten your knees to let the ball roll back while keeping your hips elevated. That's one rep.