Decreases in percentage body fat were -0.3 ( 95 % CI , -0.9 to 0.3 ) in the control group , -1.1 ( 95 % CI , -1.7 to -0.5 ) in the aerobic training group ( P = .06 vs controls ) , and -1.6 ( 95 % CI , -2.2 to -1.0 ) in the resistance training group ( P = .002 vs controls ) .