bench press power output Evaluation

The study is aimed to confirm evaluation of mechanical power output measurement during bench press exercise by methods which are used at training practice. This study was performed on ten untrained middle-aged men. The power output was measured at following loads: 18.0; 26.5; 39.2 and 47.7 kg. Method, which employs indirect power output measurement (used in training practice), was performed on FitroDyne Premium equipment. At combined method of mechanical power output measurement we used system Qualisys. For direct force measurement a dynamometric platform AMTI was used.An average mechanic power output measured by an indirect method was significantly lower at loads 18.0 and 26.5 kg, than the power output measured by a combined method (Effect of size = 1.41 and 0.59). This undervaluation can influence the load optimalization at power training.