SB Hamstring Lying Curl

Lie on the floor, grasping a suitable sized Swiss Ball between your feet, ideally a smaller 55 / 65 cm ball will work best.

Keeping the ball off the floor throughout the movement, smoothly bring your heels up towards your buttocks, keeping the tension on both your hamstring and adductor (inner thigh) muscles.

Hold in the upward phase for 2 - 3 seconds, prior to relaxing the muscles and returning back to your starting position, remembering to keep the ball off the floor.