Nonlinear 2D arm dynamics in response to continuous and pulse-shaped force perturbations

@article{Happee2014Nonlinear2A,
  title={Nonlinear 2D arm dynamics in response to continuous and pulse-shaped force perturbations},
  author={Riender Happee and Erwin de Vlugt and Bart van Vliet},
  journal={Experimental Brain Research},
  year={2014},
  volume={233},
  pages={39-52}
}
Ample evidence exists regarding the nonlinearity of the neuromuscular system but linear models are widely applied to capture postural dynamics. This study quantifies the nonlinearity of human arm postural dynamics applying 2D continuous force perturbations (0.2–40 Hz) inducing three levels of hand displacement (5, 15, 45 mm RMS) followed by force-pulse… CONTINUE READING