Different limit to the body's ability of increasing fat-free mass

摘要: Abstract It is a common understanding that fat-free mass (FFM) increases with body weight. However, limited information available as to the relationship between weight increase and changes in composition. We performed present study determine quantitatively composition, total weight, age, sex. Body composition data were obtained by isotopic dilution on 273 subjects ranging index (BMI) from about 13 70 kg/m 2 . Adipose free tissue (AFT) was modeled nonlinear, increase-limited function of Model parameters evaluated functions sex, height. The AFT very well approximated means nonlinear model ( R = .95), maximal being determined both sex height growth rate only clearly shows behavior, tending less progressively increasing With proposed model, an asymptotic may be postulated. organism seems have intrinsic limitation how much skeletal muscle development take place accommodate necessities ever-increasing load. These limits are different sexes, women approach more rapidly than men lower for same