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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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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：尽管在理论上，足旋前位与骨盆生物力学功能障碍之间存在联系，但在步态中，文献缺乏证据证实这一假设。在基于生物力学肌肉骨骼模拟的步态站立阶段，评估了15名脚旋前过度的人的骨盆段运动模式的变化，并与15名脚正常对齐的对照组进行了比较。当参与者以自己选择的舒适速度行走时，收集运动学和动力学数据。为每个参与者制作了一个具有23个自由度和92块肌肉的通用OpenSim肌肉骨骼模型。OpenSim逆运动学分析用于计算矢状面、正面和水平面上的节段角度。主成分分析被用作数据简化技术，以及获得主成分分数的计算工具。独立样本t检验用于检测组间差异。两组之间矢状面第一主成分得分的差异具有统计学意义（p=0.01；效应大小=1.06），但正面和水平面主成分得分的差异不显著。在20%-80%的站立阶段，旋前组有更大的骨盆前倾。总之，对于旋前过度的患者，我们研究了骨盆段的作用，主要是通过增加骨盆前倾角来维持矢状面的姿势平衡。由于骨盆前倾可能与腰背症状有关，在评估腰背和骨盆功能障碍患者时，应考虑足部姿势的评估。

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