degenerative disease of the CNS causes weakness and other muscle symptoms
Overview. Degenerative muscle diseases cause progressive damage and loss of muscle cells with associated weakness. There are many types of degenerative muscle diseases, and they act in different ways to cause loss of functional muscle mass.egenerative muscle diseases that affect the muscles of the mouth and throat typically cause speech, chewing and swallowing difficulties. The Myasthenia Gravis Foundation of America notes that these symptoms are common with myasthenia gravis.