HOW: Attach the Kayezen Vector right above the knee on the inside leg closest to the anchor. Lying on your back with the core engaged, bring the knee with the strap up towards the chest. Keep the toes pointed and return the leg down to the ground.
FEEL: You will feel your hip and groin working on the side the Vector is attached to.
COMPENSATION: Avoid leaning sideways to resist the Vector. Avoid arching the back.