What It Is
Bending your knees against the pad works the back of your thighs on their own. That strength helps protect your knees.
How to Do It
Set the pad so it rests just above your heels. Lie face down with your knees just off the bench edge and hold the handles. Curl your heels toward your glutes. Lower slowly until your legs are almost straight.
Skill Level
Beginner. One new pattern or machine to learn, with light loads and low risk.
Type
Strength. Builds muscle and strength with controlled, resisted movement.
Engagement
Bilateral. Each rep works both sides of the body at once.