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Related Experiment Videos

Strategies used for unconstrained direction change during walking.

M J D Taylor1, S C Strike, P Dabnichki

  • 1School of Human and Life Sciences, Roehampton University, Whitelands College, London, UK.

Perceptual and Motor Skills
|July 11, 2006
PubMed
Summary

Human gait involves complex turning maneuvers. This study reveals two distinct strategies for 90-degree spin turns: the dynamic ipsilateral pivot and the fall-into-direction ipsilateral crossover, highlighting the complexity of turning in locomotion.

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Area of Science:

  • Biomechanics
  • Human Locomotion
  • Kinesiology

Background:

  • Functional mobility relies on adapting straight-line walking patterns.
  • Turning maneuvers are essential components of complex human movement.
  • Understanding the mechanics of turning is crucial for gait analysis and rehabilitation.

Purpose of the Study:

  • To investigate the three-dimensional kinematic and kinetic characteristics of a 90-degree spin turn.
  • To identify and differentiate the underlying substrategies employed during complex turning.
  • To compare the mechanical demands of different turning strategies.

Main Methods:

  • Full 3D kinematic and kinetic analysis of the ipsilateral limb.
  • Data collection during both straight gait and unconstrained 90-degree turns.

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  • Inclusion of 10 healthy university students as participants.

    • Main Results:

    • Identification of two distinct turning substrategies: ipsilateral pivot and ipsilateral crossover.
    • The ipsilateral pivot strategy was more dynamic, requiring additional ankle and hip power phases.
    • The ipsilateral crossover strategy involved a controlled fall into the new direction.

    Conclusions:

    • Spin turns are more complex than previously understood.
    • Distinct mechanical strategies are employed for efficient turning.
    • Further research into turning mechanics can inform interventions for mobility impairments.