Rhabdomyolysis is the breakdown of damaged skeletal muscle. Muscle breakdown causes the release of myoglobin into the bloodstream. Myoglobin is the protein that stores oxygen in your muscles. If you have too much myoglobin in your blood, it can cause kidney damage. About 26,000 cases of rhabdomyolysis are reported in the United States each year.
Cause of Supination. Supination occurs as the foot tilts to the outside. Supination is the rolling of the foot to the outside during normal walking or running motions. The term is usually used in connection with over-supination, which means that the arch of the foot is too high and too much weight is placed on the outside of the foot.
Reduced supination in your forearm or an overpronation can cause stiff joints in your wrist, elbow or shoulder -- it can affect your game in sports such as volleyball, tennis and golf. To improve forearm supination, attach resistance tubing to a doorknob or stationary object that's to your left. Hold the other end of the tube in your right hand and sit in a chair. Rest your right elbow on your knee gather up the tubing to the point where you feel tension in the tube.