This volume provides a comprehensive guide to myopathies, including breakthroughs that have led to a wider appreciation of the nature of these muscle diseases. Chapters on congenital muscle disorders, biological changes, and diseases associated with aging are included, along with detailed discussions of mitochondrial myopathies, disorders of carbohydrate and lipid metabolism, and the role of heredity, amongst others. Neurologists, myopathologists, and other professionals dealing with this broad group of diseases will find state-of-the-art information on the clinical investigation and management of patient care, as well as the latest information on the pathological basis and molecular pathogenesis of these diseases.