The outcome measures were growth hormone ( GH ) , testosterone , maximal voluntary isometric contraction during bench-press , maximal voluntary isometric contraction during handgrip , and electromyography root-mean-square ( EMGrms ) muscle activity ( pectoralis major -LSB- PM -RSB- , triceps brachii -LSB- TB -RSB- , anterior deltoid -LSB- DE -RSB- , and flexor carpi radialis -LSB- FCR -RSB- ) .