Primary outcomes assessment
The primary outcome was the muscle mass assessment. Whole body and regional composition were assessed using
a fan-beam dual-energy X-ray Absorptiometry (DEXA) (GEElectric Company®, Lunar Prodigy). Regional analysis of
Arms (upper limbs) and Legs (lower limbs) were assessed according to anatomical landmarks by the same technician
using computer algorithms provided by enCORE® software.The coefficient of variation (CV) obtained for measurements
performed at the laboratory of the University of Brasilia was 0.9 and 1.9 % for body fat and lean body mass,
respectively. These measurements aimed to establish the reliability of DEXA protocol in previous study [36].