what is myopathy
From Wikipedia, the free encyclopedia. Myopathy is a muscular disease in which the muscle fibers do not function for any one of many reasons, resulting in muscular weakness. Myopathy simply means muscle disease (myo-Greek Î¼ÏÎ¿ muscle + pathos-pathy Greek suffering).uscle cramps, stiffness, and spasm can also be associated with myopathy. Capture Myopathy, or Shock Disease, is a little-studied condition observed in wild animals such as hares and birds that have been captured or handled.