Compared to baseline , RT increased LBM at week 6 ( 60.2 8.3 to 61.6 9.4 kg ; p < 0.05 ) , and decreased fat mass ( 20.8 4.2 to 19.0 3.9 kg ; p = 0.05 ) and percentage body fat at week 12 ( 25.7 3.8 to 23.8 4.0 % ; p = 0.05 ) ; RTS increased LBM at week 6 ( p < 0.01 ) and week 12 ( 56.4 4.3 to 58.2 3.4 kg ; p < 0.01 ) , and decreased percentage body fat at week 12 ( 23.9 4.4 to 22.0 4.4 % ; p < 0.01 ) .