Since full rotation of the thighbones can no longer occur in the hip joints, much of the rotational torque is transferred to the knees and the lumbar spine—a recipe for knee and lower back injuries.

结果是大腿骨无法充分由髋关节旋转就会造成部分的受力转移到膝盖和下腰椎上—正是膝盖和下腰痛的邀请函。