ANATOMY – LB – GLUTES | TFL | ITB


MUSCLE & BONE


GLUTEUS MAXIMUS | GLUTEUS MEDIUS | GLUTEUS MINIMUS | TFL | ITB



· GLUTEUS MAXIMUS


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Physiopedia
– Hip Extension
– Hip External Rotation
– Upper Fibers Hip Abduction
– Lower Fibers Hip Adduction
– Hip Extension of the trunk from a flexed position
– As a powerful extensor of the hip joint, it is suited for step-ups, climbing or running but is not used greatly during normal walking


· GLUTEUS MEDIUS


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Physiopedia
– Hip Abduction; Hip Internal Rotation
– Anterior portion assists in Hip Flexion; Posterior portion assists in Hip Extension; When the hip is flexed all portions Internally Rotate the hip
Ortho Carolina
– Besides leveling your hips, the gluteus medius has an important job in biomechanics, stability, and balance.  When you walk and run it aids in stabilizing your pelvis, in particular when you perform activities where you balance on a single leg. If the gluteus medius is weak, it can cause the hip that is not part of the standing leg to drop, and this can cause an abnormal gait and other issues.


· GLUTEUS MINIMUS


Physiopedia
– Hip Abduction
– Stabilizes the pelvis during single limb support in the gait, as it is activated on the supported side, to keep the pelvis from dropping on the opposite swing side
– Anterior segment medially rotates the thigh


· TFL


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– Prime mover in Hip Internal Rotation and a weak Hip Abductor
– Serves as an accessory muscle/ hip synergist in Hip Abduction and Hip Flexion
– Together with gluteus maximus and the ITB, it stabilizes the hip joint by holding the head of the femur in the acetabulum
– Together with the gluteus maximus it contributes in stability of the knee during extension and also in partial flexion
– As part of the iliotibial tract it aids lateral rotation of the leg
– Assists in walking by inferiorly tilting the ilium on the weight-bearing side, with resulting in an upward tilt of the contralateral hip. Thus, allowing the leg of the non weight bearing hip to swing through without hitting the ground during the swing phase of the gait – Physiopedia


· ITB


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– Assists with Hip Abduction and Internal Rotation; plays a supportive role in the gait cycle
Physiopedia
– The actions of the muscles associated with the ITB are the TFL and some fibers of Gluteus Maximus
– Hip Flexion, Hip Extension, Hip Abduction, Hip External Rotation, Hip Internal Rotation
– The ITB contributes to lateral knee stabilization


NERVOUS SYSTEM



 

 

 

 

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· GLUTEUS MAXIMUS


 

 

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· GLUTEUS MEDIUS & MINIMUS


 

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· TFL


 

 

 

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