How to do Cross Knee Lifts (Left)

Instructions

Lay down on your back. Keep your back firmly pressed down against the floor and push your palms down into the floor, by your hips, to help stabilize your core. Straighten your left leg and bend your right leg, placing your right foot on top of your left knee. Keep your core braced and lift your left leg up so it points straight to the ceiling. Slowly lower your left leg until your heel is just off the floor, then repeat the movement.

Try to keep your left leg off the floor for the entire exercise. The right leg will be lifted up by the left. Keep your core braced throughout.