平面压力梯度和压力梯度角受空气内底内压力的影响
Fahni Haris1,2, Yih-Kuen Jan3, Ben-Yi Liau4
1Department of Healthcare Administration, Asia University, Taichung, Taiwan.
更柔软的气 (80 mmHg) 显著降低脚部压力梯度 (PPG) 并增加脚部梯度角 (PGA),这对于预防脚至关重要. 较短的步行时间也降低了PPG,为有风险的个人提供了缓解策略.
科学领域:
- 生物力学 生物力学
- 足部医学是一门专业.
- 医疗工程 医学工程
背景情况:
- 脚是一个重要的临床问题,通常与异常的足部压力分布有关.
- 空气内用于修改脚部压力梯度 (PPG) 和脚部梯度角度 (PGA),可能降低风险.
- 不同气压对动态PPG和PGA的影响仍未得到充分研究,特别是在非糖尿病和糖尿病人群中.
研究的目的:
- 研究充气气内不同内部空气压对动态PPG和PGA的影响.
- 建立潜在的早期缓解策略,为那些有足部发病风险的人提供帮助.
主要方法:
- 采用了一种重复测量研究设计,测试了两个步行时间 (10分钟和20分钟) 的三个气压 (80,160和240 mmHg).
- 十三名健康参与者在三周内完成了六个不同的行走方案.
- 脚下压力梯度 (PPG) 和脚下梯度角 (PGA) 在大脚 (T1),第一个甲头 (M1) 和第二个甲头 (M2) 区域计算.
主要成果:
- 与160和240mmHg的内相比,80mmHg的空气内显著降低了PPG,特别是在M1区域行走20分钟后.
- 较低的PPG观察到10分钟的步行时间在240 mmHg,而在M1和M2地区为20分钟.
- 80 mmHg的内降低了峰值脚部压力 (PPP) 并增加了PGA与更高压力相比,而M2区域的PGA增加了80 mmHg与240 mmHg相比.
结论:
- 对于足部的风险较高的人来说,建议使用较软的气 (80 mmHg),因为它们能够降低PPG并增加PGA.
- 较短的步行时间 (10分钟) 也有助于显著减少PPG.
- 这些发现支持使用特定的气压和活动修改作为足部的预防策略.
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