This is another very popular exercise to develop the upper leg. It works the Quadriceps (thighs), the Hamstrings (back of leg) and the Gluteus Maximus (butt). This exercise is normally performed on a machine where the legs press against a weighted platform.
How to do:
1. Place your feet flat on the platform, shoulder width apart with your toes pointed slightly out.
2. Lower the platform until your knees are at a 90-degree angle.
3. Press platform outward until your legs are nearly straight. Do not lock your knees or bounce the weight at the top or the bottom of the movement.
4. A wide stance will work the outer Quad while a narrow stance will work the inner Quad.