Step 1: Lie on the back with legs extended. Keep same hand position entire movement.
Step 2: Bring one knees in so leg is at 90 degree angle. Hold for 1 count.
Step 3: Push out through heels to starting position in controlled manner while repeating the motion with the other leg.
Tips: Keep the legs parallel to the floor the entire time. Don't let them flail up and down (core is all about controlling the movement). Keep the lower back flat against the ground by not letting up on the core and keeping the shoulder blades lifted from the surface.
Link™ to Exterior: Handles or middle of Link™ held in extended hands
Stance: Carabiners to both D rings or Link™ through both D Rings