Cable Lying Triceps Extension

Lie on your back in front of a cable machine, knees bent, feet flat on the floor. Reach up to grip the bar with your hands shoulder-width apart. Straighten your arms fully, and point your palms forward. Bend your elbows to pull the bar down toward your forehead, keeping your upper arms and elbows stationary. Push the bar away from your forehead to return to the starting position.