Stigated models that included interaction terms between fat gain and age, as well as fat gain and a dichotomous growth velocity indicator (above or below 1 cm/year). We did not find any significant interactions between fat gain and these covariates of pubertal transition.| Shattuck-Heidorn et al.Evolution, Medicine, and Public HealthCONCLUSION AND IMPLICATIONSAs a lean population going through the