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<p>This study aims to investigate how different hinge mechanisms and strap tensions of knee braces affect brace migration and the brace abduction moment (BAM). Thirteen healthy participants underwent walking tests with various hinge mechanisms and strap tensions. Brace migration was measured using 3D motion capture system, and BAM was collected using moment measurement system. The results showed that hinge mechanism significantly affected brace migration, while strap tension significantly affected BAM (P &lt; 0.05). The peak brace migration ranged from 1.9±0.3 mm to 3.1±0.5 mm, and peak BAM increased from 4.7±0.3 Nm to 9.4±0.4 Nm as strap tension increased. Neither factor significantly affected knee range of motion (P &gt; 0.05). In conclusion, hinge mechanism affects migration in the sagittal plane, while strap tension affects BAM. These findings provide essential insights for optimizing knee brace design and highlight the importance of personalized brace adjustments.</p>

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The effect of hinge mechanism and strap tension of knee brace on brace migration and brace abduction moment

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • Yuzhou Yan,
  • Tao Li,
  • Hui Li,
  • Bing Han,
  • Geng Liu

摘要

This study aims to investigate how different hinge mechanisms and strap tensions of knee braces affect brace migration and the brace abduction moment (BAM). Thirteen healthy participants underwent walking tests with various hinge mechanisms and strap tensions. Brace migration was measured using 3D motion capture system, and BAM was collected using moment measurement system. The results showed that hinge mechanism significantly affected brace migration, while strap tension significantly affected BAM (P < 0.05). The peak brace migration ranged from 1.9±0.3 mm to 3.1±0.5 mm, and peak BAM increased from 4.7±0.3 Nm to 9.4±0.4 Nm as strap tension increased. Neither factor significantly affected knee range of motion (P > 0.05). In conclusion, hinge mechanism affects migration in the sagittal plane, while strap tension affects BAM. These findings provide essential insights for optimizing knee brace design and highlight the importance of personalized brace adjustments.