Fat areas on the extremities in normal weight and overweight children and adolescents: Comparison between age-related and weight-related changes in adiposity.

The purpose of the study was to compare changes in fat distribution in association with obesity and puberty in adolescent boys and girls. Fat areas at the ulnar, triceps, thigh, and calf regions were measured in normal weight prepubertal children (P) and adolescents (N), and overweight adolescents (O). There were significant differences in fat areas at the four sites between N and O of both sexes, especially in the proximal extremities (triceps, thigh) in boys. On the other hand, fat areas on the extremities of N boys and girls were not significantly different from those of P children except for thigh fat area in girls. It is suggested that pubertal maturation in girls, but not in boys, is associated with increased adiposity on the legs, particularly in the proximal regions, and that there are sex differences between changes in fat distribution associated with puberty and obesity. © 1996 Wiley-Liss, Inc.