In per-protocol analyses ( 70 % adherence ) , the combined training group had greater changes in percentage body fat ( -2.4 , 95 % CI , -3.2 to -1.6 ) vs the aerobic group ( -1.2 ; 95 % CI , -2.0 to -0.5 ; P = .04 vs the combined group ) but not the resistance group ( -1.6 ; 95 % CI , -2.5 to -0.8 ) .