Ankle stiffness of standing humans in response to imperceptible perturbation: reflex and task-dependent components.

@article{Fitzpatrick1992AnkleSO,
  title={Ankle stiffness of standing humans in response to imperceptible perturbation: reflex and task-dependent components.},
  author={Richard C. Fitzpatrick and Janet L. Taylor and D. Ian McCloskey},
  journal={The Journal of physiology},
  year={1992},
  volume={454},
  pages={
          533-47
        }
}
1. It has been demonstrated that subjects can alter the reflex stiffness of the elbow and wrist in response to imperceptibly slow perturbations applied through a complaint coupling. We used this technique to measure ankle stiffness in standing subjects as a means of examining reflex activity. 2. During unperturbed stance, a linear relationship between ankle torque and ankle angle is expressed as a load stiffness. The load stiffness predicted from a subject's measured physical dimensions… CONTINUE READING

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