The Encyclopedia of Exercise Medicine is intelligently structured, easily accessible, and user-friendly: A-Z format, clear, concise language, and uniform essay structure, as well as extensive cross-references between keywords and related articles, enable efficient searches in a user-friendly manner both for experts and newcomers. It is intended to be a comprehensive, up-to-date database on the human body’s adaptation to exercise and on the therapeutic use of exercise with up to 2,000 keywords. It covers all aspects within the full range of modern exercise medicine of each particular scientific discipline (cancer, parasitology, aging, etc.). This includes information on methodological approaches to measuring the principle components of motor fitness and practical aspects of their enhancement by training regimes as well as by nutrition and the application of drugs. Such a wide range of entries, all written by leading experts in their respective fields, will therefore address both the primary/clinical scientist and the practitioner. Moreover, the Encyclopedia of Exercise Medicine is aimed at people in related fields, such as health care professionals, physiotherapists, trainers, students, informed athletes, and interested laypersons. It is available in print and as a fully searchable and hyperlinked electronic online edition.