Leg Curl Extension

No, leg extensions and leg curls are two different exercises that target different muscle groups. Leg extensions involve moving your lower leg against a weight or lever to extend the knee joint, whereas a leg curl involves bending your lower leg to flex the knee joint.Leg extensions and leg curls, also called hamstring curls, both work muscle groups in your lower body, but they focus on completely different ligaments and muscles in your legs. While leg extensions activate the quadriceps muscles on the fronts of your legs, hamstring curls target the muscles on the backs of your legs.The hamstring curl, also called a leg curl, is an exercise that strengthens the hamstrings. It involves bending your knees and moving your heels toward your butt while the rest of your body stays still. Typically, the exercise is done on a leg curl machine.