Tension members anchored to a wearer's body to resist femoral acetabular impingement (FAI)-causing movements. A first tension member is anchored to the body of a subject, and produces a force on the subject's body to primarily limit the ability of the subject's thigh to internally rotate and the ability of the subject's knee to adduct. Thus, this first tension member resists the tendency of the subject's leg to twist inward or deflect inward, each of which may contribute to FAI. A second tension member is anchored to the subject's body, and provides a force to the subject's body to primarily limit the ability of the subject's hip joint to move in flexion. Thus, the second tension member resists the tendency of the subject's leg to raise too high, which may also contribute to FAI.