Facts About Metabolic Diseases of Muscle
Internet URL
http://www.mdausa.org/publications/fa-metab.html 
This document also available in Spanish
Sponsoring Agency
Muscular Dystrophy Association
Description
Metabolic diseases of muscle were first recognized in the second half of the 20th century. Each of these disorders is caused by a different genetic defect that impairs the body's metabolism, the collection of chemical changes that occur within cells during normal functioning.