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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part H. Journal of Engineering in Medicine >The influence of foot hyperpronation on pelvic biomechanics during stance phase of the gait: A biomechanical simulation study
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The influence of foot hyperpronation on pelvic biomechanics during stance phase of the gait: A biomechanical simulation study

机译:步态姿势期间脚高辐射对盆腔生物力学的影响:生物力学模拟研究

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摘要

Despite the theoretical link between foot hyperpronation and biomechanical dysfunction of the pelvis, the literature lacks evidence that confirms this assumption in truly hyperpronated feet subjects during gait. Changes in the kinematic pattern of the pelvic segment were assessed in 15 persons with hyperpronated feet and compared to a control group of 15 persons with normally aligned feet during the stance phase of gait based on biomechanical musculoskeletal simulation. Kinematic and kinetic data were collected while participants walked at a comfortable self-selected speed. A generic OpenSim musculoskeletal model with 23 degrees of freedom and 92 muscles was scaled for each participant. OpenSim inverse kinematic analysis was applied to calculate segment angles in the sagittal, frontal and horizontal planes. Principal component analysis was employed as a data reduction technique, as well as a computational tool to obtain principal component scores. Independent-sample t-test was used to detect group differences. The difference between groups in scores for the first principal component in the sagittal plane was statistically significant (p=0.01; effect size=1.06), but differences between principal component scores in the frontal and horizontal planes were not significant. The hyperpronation group had greater anterior pelvic tilt during 20%-80% of the stance phase. In conclusion, in persons with hyperpronation we studied the role of the pelvic segment was mainly to maintain postural balance in the sagittal plane by increasing anterior pelvic inclination. Since anterior pelvic tilt may be associated with low back symptoms, the evaluation of foot posture should be considered in assessing the patients with low back and pelvic dysfunction.
机译:尽管骨质骨质高度和骨盆生物力学功能障碍之间的理论联系,但文献缺乏证据证实在步态期间真正的高压脚对象的这种假设。骨盆段的运动模式的变化在15人中进行了高脚,并与基于生物力学肌肉骨骼模拟的步态的姿势期间的15人的对照组相比。在参与者以舒适的自选速度走路时收集了运动和动力学数据。每个参与者都缩放了具有23度自由和92个肌肉的通用Opensim Musculosketal模型。申请OpenSim逆运动学分析以计算矢状,正面和水平平面中的区段角度。主要成分分析作为数据减少技术,以及获得主成分分数的计算工具。独立样品T检验用于检测组差异。矢状平面中第一个主成分的分数之间的差异有统计学意义(P = 0.01;效果大小= 1.06),但正面和水平平面中的主成分分数之间的差异并不显着。高速组在姿势阶段的20%-80%期间具有更大的前骨盆倾斜。总之,在具有高速的人中,我们研究了骨盆部门的作用主要是通过增加前骨盆倾斜来保持矢状平面的姿势平衡。由于前骨盆倾斜可能与低症状相关,因此应考虑评估脚姿势的评估,评估低背和骨盆功能障碍的患者。

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