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Personal Exercise Program
Introduction to Strength Training

The Major Body Parts: The Legs legs
The main muscle groups of the legs or lower body include the quadriceps (quads), hamstrings (hams), the gastrocnemius (gastrocs), and soleus muscles. The quads are comprised of 3 smaller muscles whose primary function is to straighten or extend the leg at the knee and are worked in leg extensions and squats. One of the quad muscles also assists in hip flexion or bringing the knee toward the chest. The hamstrings perform 2 major movements: bending the leg at the knee or knee flexion and they also assist in hip extension or pulling the knee away from the chest. The hams are worked with leg curls and assist the glutes and erector spinae muscles in the stiff-legged dead lift and in squats. The gastrocs point the toe with the knee straight and are worked in calf raises. The soleus points the toe with the knee bent and is the main muscle involved in seated calf raises.

Return to Introduction to Strength Training
Return to Introduction to Exercise

Not all exercises or diets are suitable for everyone. Before you begin this program, you should have permission from your doctor to participate in vigorous exercise and change of diet. If you feel discomfort or pain when you exercise, do not continue. The instructions and advice presented are in no way intended as a substitute for medical counseling. The creators, producers, participants and distributors of this site disclaim any liability or loss in connection with the exercise and advice provided here.

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