Quantification of pelvic rotation as a determinant of gait
Quantification of pelvic rotation as a determinant of gait
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DOI：
10.1053/apmr.2001.18063
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发表时间：
2001-02-01
影响因子：
4.3
通讯作者：
Della Croce, U
中科院分区：
文献类型：
--
作者：
Kerrigan, DC;Riley, PO;Della Croce, U
目的：评估最初被描述为步态的第一个决定因素的骨盆旋转的影响，在舒适的速度步行过程中降低质量中心（COM）的垂直位移。采集：在步行过程中骨盆和下肢运动学数据中收集。修改的指南针步态模型纳入了测得的输入，以估计骨盆旋转对减少COM垂直位移的影响，还计算了垂直位移的实际减少。设置：步态实验室。参与者：三十多名功能良好的受试者。主要结果指标：将骨盆旋转引起的COM垂直位移的估计减少与COM的实际减少进行了比较位移。分辨率：减少COM位移中骨盆旋转的估计效应为2.5 +/- 1.1mm，仅占实际减少的12％，结论：在正常舒适的速度下，通过强大的受试者行走，骨盆旋转仅贡献A与指南针步态模型相比，COM垂直位移的实际减小的一小部分。需要其他主要步态因素或决定因素来解释COM垂直位移的实际减少。
Objective: To evaluate the effect of pelvic rotation, originally described as the first determinant of gait, on reducing the vertical displacement of the center of mass (COM) during comfortable speed walking.Design: Pelvic and lower extremity kinematic data during walking were collected. A modified compass gait model incorporating measured inputs was used to estimate the effect of pelvic rotation on reducing the vertical displacement of the COM, The actual reduction in vertical displacement was also calculated.Setting: A gait laboratory.Participants: Thirty able-bodied subjects.Main Outcome Measure: The estimated reduction in COM vertical displacement caused by pelvic rotation was compared with the actual reduction in COM displacement.Results: The estimated effect of pelvic rotation in reducing COM displacement was 2.5 +/- 1.1mm, accounting for only 12% of the actual reduction,Conclusion: During normal comfortable speed walking by able-bodied subjects, pelvic rotation contributes only a small portion of the actual reduction in the vertical displacement of the COM compared with a compass gait model. Other primary gait factors or determinants are needed to explain the actual reduction in vertical displacement of the COM.