在没有参与者特定动力学的情况下评估脊柱动力学的有效性
Chenxi Yan1, Andrew C Lynch2, Mohammad Mehdi Alemi1
1Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Orthopedic Surgery, Harvard Medical School, Boston, MA, United States.
Journal of biomechanics
|October 7, 2023
概括
在没有参与者特定测量动力学 (PSMK) 的情况下估计脊柱负荷是可行的. 集成平均动力学 (EAK) 和单独测量个体动力学 (SMIK) 为动态脊柱负荷分析提供了与PSMK可比的结果.
科学领域:
- 生物力学 生物力学
- 肌肉骨系统的建模
- 脊柱负荷分析 脊柱负荷分析
背景情况:
- 参与者特定的测量动力学 (PSMK) 对于准确的体内脊柱负荷估计至关重要.
- 在大规模研究和临床环境中,获取PSMK数据往往是不切实际的.
研究的目的:
- 评估整体平均动力学 (EAK) 和单独测量个体动力学 (SMIK) 的有效性,作为PSMK的替代方案,用于估计动态脊柱负荷.
- 为了比较EAK和SMIK与PSMK在执行举重任务的老年人中的准确性和可靠性.
主要方法:
- 开发并应用EAK和SMIK方法来估计没有PSMK的脊柱负荷.
- 将来自EAK和SMIK的动态脊柱负载模式和峰值负载与来自PSMK的峰值负载进行了比较.
- 分析了根平均平方误差和方法与重复PSMK试验之间的交叉相关性.
主要成果:
- 与PSMK相比,EAK和SMIK的中位方根平均平方误差为压力负荷的18-72%,剪切负荷的2-25%.
- EAK/SMIK和PSMK之间的中位交叉相关性在0.931到0.991.99之间.
- 在15个案例中,12个案例中,EAK和SMIK估计的压缩峰值负载与PSMK没有显著差异.
结论:
- 在不需要PSMK的情况下,EAK和SMIK为估计动态脊柱负荷提供了可行的替代方案.
- EAK和SMIK的准确性和可靠性与重复PSMK测量的准确性和可靠性相当.
- 这些方法可以促进在研究和临床实践中更容易获得和更具成本效益的脊髓负载估计.
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