
The Swiss ball leg curl works the hamstrings and glutes with heels resting on a ball.
Lying on your back, place your heels on the ball, legs straight, then raise your hips to align your body.
Roll the ball toward your glutes by bending your knees and keeping your hips high, then straighten your legs again.
Your hips remain high from start to finish. Arms out to the sides on the floor for stability.
Image and text: Bryl Lim / Everkinetic — recoloré et rastérisé — CC BY-SA 4.0, via Workout Guide. Original entry