Mischoice of hip position and angle in exercise may increase the risk of lower extremity injuries and undesirable muscle activation (Willcox and Burden, 2013). According to Fredericson and Wolf (2005),
Gmed weakness may arise from compensation using the TFL to dominant, thus leading to tightness and hypertonicity of the TFL. According to the concept of synergist dominance, individuals with Gmed weakness should rely on TFL to accomplish the hip abduction required for gait and activities of daily living, thus contributing to “TFL dominance” associated with further weakness of Gmed due to disuse
Effect of Hip Flexion and Internal Rotation on the Hip Abductor Muscle Activity During Side-Lying Hip Abduction in Subjects With Gluteus Medius Weakness
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