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Related Experiment Video

Updated: Sep 12, 2025

Lower-Limb Biomechanical Characteristics Associated with Unplanned Gait Termination Under Different Walking Speeds
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Kinematic control differs in walking speed adjustment to different velocities.

Tomoya Kokue1, Yuma Takenaka1, Kenichi Sugawara1

  • 1Division of Physical Therapy Science, Graduate Course of Health and Social Work, Kanagawa University of Human Services: 1-10-1 Heisei-cho, Yokosuka-shi, Kanagawa 238-8522, Japan.

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Researchers identified key kinematic indicators for adjusting walking speed, revealing distinct mechanisms for acceleration and deceleration. This understanding can enhance gait rehabilitation strategies for various speeds.

Keywords:
3-Axis accelerometerCenter of gravityWalking speed

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Area of Science:

  • Biomechanics
  • Human Movement Science
  • Gait Analysis

Background:

  • Understanding the biomechanical mechanisms of gait adjustment is crucial for rehabilitation.
  • Previous research has not fully elucidated the kinematic differences during acceleration and deceleration tasks.

Purpose of the Study:

  • To identify kinematic indices during acceleration and deceleration tasks.
  • To clarify the underlying mechanisms of walking speed adjustment.

Main Methods:

  • Healthy adults performed acceleration and deceleration tasks involving shifts to minimum and intermediate speeds.
  • Kinematic data were collected using a three-axis accelerometer, foot switches, and OptoJump Next.

Main Results:

  • Acceleration tasks showed prolonged increases in step time and center-of-gravity acceleration.
  • Deceleration tasks revealed earlier decreases in step length for minimum speed and increased step time for intermediate speed.

Conclusions:

  • Kinematic control strategies differ significantly based on the target walking speed.
  • Findings suggest that gait rehabilitation can be improved by focusing on speed-specific adaptations.