摘要: Anatomists showed many years ago that some organs grow at rates differ from of the body as a whole. In recent decades we have witnessed development techniques permit assessment certain features composition in living subject. Humans rank among fattest mammals, and it is this fact, others, which has stimulated methods for estimating relative proportions lean fat our species; assays total Ca, P, N also been developed. These make possible to define contribution each component adolescent growth process. Body data can help nutritional requirements growth. Although long favorite nutritionists, metabolic balance method not equal task (Wallace, 1959; Forbes, 1973, 1983), one look forward more realistic estimates based on these newer techniques.