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Related Experiment Videos

Control of gait initiation.

Y Brenière1, M C Do

  • 1Laboratoire de Physiologie du Mouvement, URA-CNRS 631, Université Paris-Sud, 91405 Orsay, France.

Journal of Motor Behavior
|December 1, 1991
PubMed
Summary
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Gait initiation duration is independent of speed, suggesting biomechanical factors control movement. Step frequency and progression velocity are linked, reflecting postural control during walking.

Area of Science:

  • Biomechanics
  • Human locomotion
  • Movement control

Background:

  • Understanding gait initiation is crucial for analyzing human movement.
  • Previous studies have explored factors influencing gait parameters.

Purpose of the Study:

  • To analyze the initiation of gait from a standing posture.
  • To determine the relationship between gait initiation duration, velocity, and step parameters.

Main Methods:

  • Analysis of gait initiation in 6 subjects taking controlled-length steps.
  • Application of an inverted pendulum model.
  • Measurement of instantaneous and steady-state velocities, step length, and step frequency.

Main Results:

  • Gait initiation duration was independent of gait velocity.

Related Experiment Videos

  • Instantaneous and steady-state velocities varied with step length.
  • Step frequency did not vary with step length but increased with progression velocity.

    • Conclusions:

    • Biomechanical constants appear to determine gait initiation.
    • The correlation between velocity and frequency suggests posturodynamic control of gait parameters.
    • Progression forces play a role in controlling step parameters during gait initiation.