How to: Grasp the bar at shoulder width or a little wider. Be sure you’re comfortable. Fully extend your body and raise your knees until they frorm a right angle. Be sure to raise and lower your legs slowly in order to realize maximum benefit from the exercise.

Safety hint: Be sure to use a chair or a stool to get down from the bar. Unnecessary jumping from the bar, especially if you’re tired, may injure your back.