How does strengthening of the whole group gluteus medius and minimus influence activity in other abductor muscles
In THA, this technique is useful when reattaching abductor muscles
to the greater trochanter in the direct lateral approach and for repairing the capsule and external rotator muscles in the posterior approach.
Weaker hip muscles, especially hip abductor muscles
, on the affected site in patients with THA may also contribute to poor trunk control while walking .
The abductor muscles
stabilize the pelvis especially during walking in one leg and standing.
The idea is that during level walking the hip abductor muscles
of the stance leg contract to control the slight lowering of the contralateral pelvis.