The lower body staple is one of the most versatile moves on the gym floor. Pick which version works best for your goals.

Want powerful legs? These expert-approved squat exercises will help you build strength, improve endurance, and tone your lower body quickly.

Stand in front of the box with your back to it and perform a slow and controlled squat until you reach the box. At first, you can sit all the way down. As you get stronger, try to just touch the ...