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Angle-angle plots (degrees) of the hip flexion-extension/knee rotation (top left), hip abduction-adduction/knee rotation (top right) and hip rotation/knee rotation (bottom) joint couplings during the entire stance phase, where the solid and dashed lines represent the non-acetabular lesion group (NG) and the acetabular lesion group (LG), respectively. Initial contact and toe-off are indicated with a + and a #, respectively.
