Worldwide, numerous textbooks and publications have dealt with research on muscle fibres carried out under different points of view. In addition, comprehensive works such as Myology (Engel and Franzini-Armstrong 1994), Disorders of Voluntary Muscle (Walton et al. 1994), and Skeletal Muscle (Schmalbruch 1985) as a volume ofthe work Handbook of Microscopic Anatomy, have been published. Moreover, proceedings from myology symposiums give us access to the present state of the art in muscle research. The book The Dynamic State of Muscle Fibres (Pette 1990a) summarizes the contributions to the...