The upper legs are made up of two major muscle groups. The quadriceps, a muscle group consisting of four parts, is located at the front of the upper leg. The hamstrings, made up of the semitendinosus, semimembranosus and biceps femoris muscles, are located at the back of the thigh. For fast toning of your upper legs, you need regular exercise that...

The upper legs are made up of two major muscle groups. The quadriceps, a muscle group consisting of four parts, is located at the front of the upper leg. The hamstrings, made up of the semitendinosus, semimembranosus and biceps femoris muscles, are located at the back of the thigh. For fast toning of your upper legs, you need regular exercise that...

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