|Exercise Help & Tips: Lying Hamstring Curls with Ball|
Lie on your stomach, squeezing a ball between your legs beneath your lknees. Place arms and hands under your head.
EXHALE: Keep feet flexed and ball squeezed tightly. Curl your heels in towards your butt as far as possible.
INHALE: Slowly lower to start without resting on the ground between reps.
Muscles Worked: Hamstrings, Inner thigh