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2. Hamstrings - these are found to rear of leg and consist of biceps femoris, semitendinosus and semimembranosus. The hamstrings are used to flex knee in act of pulling heel towards buttocks.
3. Gluteals - these make up buttocks and consist of gluteus maximus covering hip joint and gluteus medius and minimus on outside of hip. The gluteus maximus facilitates hip extension while other two lift leg to side in an action called hip abduction.
4. Hip flexors - these are found opposite glutes on front of pelvis. Consisting of psoas major and iliacus they raise leg to front.
5. Calves - these consist of gastrocnemius and soleus. Their role is to extend foot at ankle.
Rick Mitchell is the creator of the bodybuildingadvisor.com website that provides guidance and information to athletes at all levels of bodybuilding experience. Go to Bodybuilding Advice to learn more about the issues covered in this article.