Unable to move without limitation. Pain usually attributed to the condition of the socket. Often thought of as natural process of depletion of socket muscle with aging. Weakness not just in the hip area. Hip is not moving while femur is rotating.
Femur begins to grind away in the socket.
Body's ability to replenish the cartilage reduced with lack of motion. Wearing away of the cartilage in the socket, acetabulum. Pitting and scaring of the head of the femur. Alignment problem including the spine. Sedentary lifestyle contributes in some cases.