Handgrip strength and selected endurance variables

The muscles of a dominant hand were investigated in 424 subjects (168 males and 256 females). The aim of this study was to evaluate the dependence between muscle strength and endurance during maximal voluntary contractions (MVC). Three types of isometric contractions were applied: 75, 50 and 25% of maximal strength (Fmax) and all experiments were performed until exhaustion. The relationship between contraction time and external load of muscle was calculated. The exponential function gives the best fitting of measured data. They were drawn a curves for men and women. It seems the experiment with 50% of maximal handgrip force gives the best information about muscle endurance than other abilities.