The leg extension, or knee extension, is a type of strength training exercise. It’s an excellent move for strengthening your quadriceps, which are in the front of your upper legs. Leg extensions are ...

Leg presses and squats both work your quads, hamstrings, and glutes. But squats also work other parts of the body. It’s leg day and you want to work your quadriceps, the large muscles at the front of ...