Set-up: Begin by lying on your back and grasping the back of each leg.
Movement: With arms kept straight, contract your traps and elevate your shoulders. Pause at the top and return along the same path, using your legs to increase or decrease resistance as necessary, but without flailing.
Emphasis: Brace through your core and maintain control and stability throughout. If mobility prevents a clean grip, simply switch or exclude this exercise using the corresponding action buttons.