Effect of maximal grip strength and initial grip strength on contraction time and on areas under force-time curves during isometric contractions
Byrd, R.; Jenness, M.E.
Ergonomics 25(5): 387-392
Subjects (30) volunteered for a study designed to investigate the usefulness of force-time curve areas as determinants of endurance. With the termination point being 50% of maximum voluntary contraction, the effect of varying the initial strength of contraction was studied. Correlations among maximum grip strength, area under force-time curves and time of sustained isometric contractions were examined. No significant difference were found in force-time curve areas across test conditions, while means for time were different. Strongest correlations were found among the force-time curve areas. Because of the greater consistency of force-time curve areas over time alone, force-time curve areas should be considered as a useful alternative tool for those researchers dealing with handgrip endurance.