Number of trials necessary to achieve performance stability of selected ground reaction force variables during landing.

@article{James2007NumberOT,
  title={Number of trials necessary to achieve performance stability of selected ground reaction force variables during landing.},
  author={Chris R. James and Joseph A Herman and Janet S Dufek and Barry T. Bates},
  journal={Journal of sports science & medicine},
  year={2007},
  volume={6 1},
  pages={126-34}
}
The objectives were to determine the number of trials necessary to achieve performance stability of selected ground reaction force (GRF) variables during landing and to compare two methods of determining stability. Ten subjects divided into two groups each completed a minimum of 20 drop or step-off landings from 0.60 or 0.61 m onto a force platform (1000 Hz). Five vertical GRF variables (first and second peaks, average loading rates to these peaks, and impulse) were quantified during the… CONTINUE READING
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