Dependence of joint stiffness on the conditions of visual control in upright undisturbed stance in humans

@article{Smetanin2006DependenceOJ,
  title={Dependence of joint stiffness on the conditions of visual control in upright undisturbed stance in humans},
  author={Boris Smetanin and K. E. Popov and G. V. Kozhina},
  journal={Neurophysiology},
  year={2006},
  volume={38},
  pages={134-141}
}
We recorded the sagittal and frontal components of the stabilogram of healthy humans in upright undisturbed stance under five conditions of visual control: (i) open eyes (OE); (ii) closed eyes (CE); (iii) visual inversion (VI); (iv) central vision (CV), and (v) diffused light (DL). Through a low-pass filter of trajectories of the center of pressure of feet (CPF), the vertical projection of the center of gravity (CG) and, consequently, the difference CPF-CG were estimated. The former represents… 
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