}, Muscles that can tighten while sitting - Hip Extensors
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Muscles that can tighten while sitting - Hip Extensors

Hip extensors are made up of the hamstrings; which are biceps femoris, semimembranosus and semitendinosus, and gluteus maximus. They work together to give your leg backward movement. Assisting muscles are the gluteus medius and adductor magnus.




Why are they important?


We use these muscles when we stand up from sitting, walking, running, climbing stairs and jumping and we often here AFL players injuring their hamstrings when kicking.


They are very important muscles for holding correct posture for the body. If we sit for long periods of the day, this can tighten and weaken these muscles. 


Can we test these muscles?


Yes we can two common tests are Prone Hip Extension Test (PHE) and hamstring length test.


The PHE test is designed to test the pattern of muscles firing and from that we can work out the muscle imbalances.


How is this done?