在载荷运输过程中,骨负荷的大小和分布
Blake W Jones1,2, John D Willson2, Paul DeVita1
1Department of Kinesiology, East Carolina University, Greenville, NC,USA.
Journal of applied biomechanics
|September 22, 2023
概括
承担额外的重量会显著增加膝关节的力量,中间和侧面的隔间会有不同的反应. 这表明,随着行走时负荷增加,关节骨炎的风险各不相同.
科学领域:
- 生物力学 生物力学
- 整形外科 整形外科 整形外科
- 运动医学 运动医学
背景情况:
- 慢性高足关节 (TFJ) 接触力会对膝盖健康产生负面影响.
- 众所周知,载荷运输会增加TFJ力,但对隔间的具体反应尚不清楚.
研究的目的:
- 为了比较腿骨关节 (TFJ) 接触力在中间和侧面的隔间在步行时与增量负载载.
- 调查15%和30%的体重增加如何影响TFJ接触力.
主要方法:
- 24名健康成年人在无负荷,15%负荷和30%负荷条件下在仪器化跑步机上行走.
- 根据反向动态的肌肉骨建模计算了峰值TFJ接触力和冲动.
- 重复测量ANOVA和直角多项式趋势分析了数据.
主要成果:
- 总的,中间的和侧面的TFJ力量和冲动随着增加负载而显著增加.
- 侧腔腔脉冲显示出曲线增长,而中间力/脉冲则呈线性反应.
- 与中部隔间相比,侧侧隔间的脉冲增加了不成比例.
结论:
- 膝盖中部和侧部对增加的行走负荷表现出不同的反应.
- 这些不同的反应可能会对骨关节炎风险评估和预防策略产生影响.
- 需要进一步的研究来了解这些发现的临床意义.
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