They were instructed to allow both feet to fall outwards (ie, hip internal rotation) while keeping their knees together. A spirit level, placed across the greatest convexity of both gluteus maximus ...

The strength (truncated range average torque (TRAT), work, and angle specific torque (AST)) of the hip external rotator muscle group, through the full available active hip ER ROM, was evaluated using ...

Increasing internal rotation improves various aspects of your hip health, including muscle flexibility, joint mobility, control and strength in the lower body and range of motion around the pelvis.