ABSTRACT
Physiological and performance variables are frequently influenced by body size. For instance, the performance capabilities of children are less than those of adults. Similarly, there are track and fi eld events such as hammer, discus and shot in which high values of body mass are especially infl uential. Furthermore, oxygen uptake (VO2) during a particular task in a large person will probably be greater than in a small person. These observations give rise to a simple question: to what extent are performance differences attributable to differences in size or to differ ences in qualitative characteristics of the body’s tissues and structures?
