Mechanical power output, measurement, resistance exercise, validity, power training, biomechanics, modeling

Loads and velocities used are one of the most important factors that determine the training stimuli and the consequent training adaptations during power training. The purpose of this text is to describe approaches to the power output measurement during upper and lower body exercises. Moreover, I would like to clarify the fundamentals of the power output measurement by different methods used. Conclusion: Trainers could use the field test, force plate, linear position transducer or combined method for the evaluation of power output in practice. The optimization of the load for the maximal power output should be done with the help of the mechanical empirical model especially for whole body exercises.