The sum of repetitions performed in the 3 sets was 11.60 % higher in bench press ( 26.86 1.74 ; caffeine : 30.00 1.87 ; P = 0.027 ) and 19.10 % in leg press ( placebo : 40.0 4.22 ; caffeine : 47.64 4.69 ; P = 0.009 ) .