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Related Experiment Video

Updated: Feb 2, 2026

Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings
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Voluntary steps and gait initiation.

Brian L Day1, Matthew J Bancroft1

  • 1UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.

Handbook of Clinical Neurology
|November 29, 2018
PubMed
Summary
This summary is machine-generated.

Initiating gait involves a controlled fall, with balance regained upon landing. Motor control before stepping (throw) and during landing (catch) are crucial for stable, goal-directed steps.

Keywords:
balancecoordinationcorticalgait initiationpredictive controlstep adjustmentssteppingsubcorticalvisual control

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Area of Science:

  • Biomechanics
  • Neuroscience
  • Motor Control

Background:

  • Understanding the neural and mechanical control of human locomotion is essential for addressing mobility impairments.
  • Maintaining balance during gait initiation and execution is a complex motor task.
  • Falls are a significant risk, especially in aging populations or those with neurological conditions.

Purpose of the Study:

  • To explore the mechanisms controlling goal-directed steps for body reorientation and gait initiation.
  • To investigate the role of balance control during the stepping process.
  • To examine the interplay between motor activity, body trajectory, and landing adjustments.

Main Methods:

  • Analysis of motor control strategies during gait initiation.
  • Investigation of balance control mechanisms during the 'throw' and 'catch' phases of a step.
  • Examination of mid-step adjustments in response to sensory information.

Main Results:

  • Standing balance is intentionally relinquished during the airborne phase of a step, allowing controlled falling.
  • The 'throw' (pre-step motor activity) and 'catch' (landing phase) are tightly coupled to ensure balance.
  • Limited mid-step adjustments are possible, occurring rapidly with visual feedback, potentially via subcortical pathways.

Conclusions:

  • Gait initiation is a predictive, coordinated action vulnerable to errors, increasing fall risk.
  • Neural and muscular degeneration exacerbate the risk of falls during locomotion.
  • Further research into subcortical control of gait adjustments may inform interventions for mobility disorders.