Toning thigh muscle is very important for every woman. However a person should focus on both inner thigh muscles as well as front thigh muscles. Once the front thigh muscles get toned the legs look slimmer and tonner than before. The four muscles located on the front of the thigh is known as quads or quadriceps. They contract together to help lift up or flex the hip and to straighten or extend the knee. Thus it is important to learn how to strengthen this muscle group. Some quad strengthening exercises can help to strengthen the quads. Straight Leg Raises Step