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Related Experiment Video

Updated: Jun 17, 2025

Clinical Assessment of Spatiotemporal Gait Parameters in Patients and Older Adults
08:56

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Published on: November 7, 2014

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Age affects the dynamic interaction between kinematics and gait stability.

Shengyun Liang1,2

  • 1College of Software Engineering, Shenzhen Institute of Information Technology, Shenzhen, China.

Frontiers in Bioengineering and Biotechnology
|August 14, 2024
PubMed
Summary

Elderly individuals exhibit distinct body movement patterns compared to younger adults, particularly in how their center of mass (CoM) interacts with their base of support (BoS). These differences are crucial for understanding and preventing falls in older populations.

Keywords:
Chinese older adultsbase of supportcenter of massgaitregion of stability

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Area of Science:

  • Biomechanics
  • Gerontology
  • Human Movement Science

Background:

  • Understanding the relationship between the center of mass (CoM) and base of support (BoS) is vital for fall prevention in the elderly.
  • Age-related changes in body movement control can increase fall risk.

Purpose of the Study:

  • To investigate age-related differences in CoM and CoM velocity vector relative to the BoS during walking.
  • To characterize how elderly individuals manage stability and momentum during gait.

Main Methods:

  • Thirty participants (elderly and young) were studied during walking.
  • Analysis involved the instantaneous location of CoM and CoM velocity vector relative to the BoS.
  • Feasible stability regions were derived, and age-related statistical analyses were performed, including Bland-Altman analysis.

Main Results:

  • Significant differences in stability margin and distance to centroid were observed between elderly and young groups (p < 0.05).
  • Older adults showed greater CoM velocity distance to the border at right limb heel strike, indicating altered momentum control.
  • Bland-Altman analysis confirmed substantial validity for capturing stride-to-stride variability.

Conclusions:

  • CoM trajectories and feasible stability regions offer insights into human momentum control.
  • Findings contribute to understanding the mechanisms of body instability and gait imbalance in aging.
  • The study provides a feasible method for assessing gait variability and age-related stability differences.