The Leg Curl Machine is mainly used to train your posterior thigh muscles, also known as hamstrings. This muscle area includes the two posterior thigh muscle known as the biceps femoris, the semitendinosus, and semimembranosus. These muscles are for bending the lower legs and to balance the knee joint during everyday motion. Trained hamstring muscle prevents the knee from injury and significantly protects your knee from damages by severe strain. Gaining muscles in this area support hip extension and therefore helps promote healthy posture.

Not only that it improves your physic, but it also helps to prevent muscular imbalance. It is essential to train well quadriceps also consistently train the opposing muscle which is the hamstrings. Having well and flexible hamstrings is an important factor in your overall strength, balance and endurance. Having a strong and flexible hamstring not only helps you in your workout, but it also helps you in your daily life. Better posture and stability protects your muscles as you do everything from playing with your kids and doing chores at home.

Overall, strength and flexibility in these muscles area will also assist you as your body ages, especially if you are regularly having knee, joint, or back problems.