Xu Hang, Hunt MaryEllen, Bo Foreman K, Zhao Jie, Merryweather Andrew
Jiangsu Province Keylab of Anesthesiology, Xuzhou Medical University, Xuzhou, China; Department of Mechanical Engineering, University of Utah, Salt Lake City, UT, USA.
Department of Mechanical Engineering, University of Utah, Salt Lake City, UT, USA.
Clin Biomech (Bristol). 2018 Aug;57:93-98. doi: 10.1016/j.clinbiomech.2018.06.013. Epub 2018 Jun 25.
Persons with Parkinson's disease are at high risk for fall-related injuries with a large proportion of falls occurring while walking, especially when the walking environments are complex. The aim of this study was to characterize gait parameters on irregular surface for persons with Parkinson's disease.
Three-dimensional gait analysis was conducted for nine persons with Parkinson's disease and nine healthy age-matched adults on both regular and irregular surfaces. Repeated ANOVA and paired t-test were performed to determine the effect of surface and group for spatiotemporal, kinematic and stability variables.
Individuals with Parkinson's disease showed a larger ratio of reduction for speed, cadence and step length than controls when the surface changed from regular to irregular. The ankle transverse range of motion and root mean square of trunk acceleration increased on irregular surface for both groups. Additionally, individuals with Parkinson's disease demonstrated a decreased knee sagittal range of motion and trunk frontal and transverse range of motion compared with controls, especially on the irregular surface.
The irregular surface posed a greater challenge to maintain balance and stability for individuals with Parkinson's disease. A relatively small knee range of motion in the sagittal plane and large root mean square of trunk acceleration increased the potential fall risk for individuals with Parkinson's disease. This information improves the understanding of parkinsonian gait adaptations on irregular surfaces and may guide gait training and rehabilitation interventions for this high fall-risk population.
帕金森病患者因跌倒受伤的风险很高，其中很大一部分跌倒发生在行走时，尤其是当行走环境复杂时。本研究的目的是描述帕金森病患者在不规则表面上的步态参数。
对9名帕金森病患者和9名年龄匹配的健康成年人在规则和不规则表面上进行三维步态分析。进行重复方差分析和配对t检验，以确定表面和组对时空、运动学和稳定性变量的影响。
当表面从规则变为不规则时，帕金森病患者的速度、步频和步长的降低比例比对照组更大。两组在不规则表面上的踝关节横向运动范围和躯干加速度均方根均增加。此外，与对照组相比，帕金森病患者的膝关节矢状面运动范围以及躯干额状面和横向运动范围减小，尤其是在不规则表面上。
不规则表面对帕金森病患者维持平衡和稳定性构成了更大的挑战。矢状面相对较小的膝关节运动范围和较大的躯干加速度均方根增加了帕金森病患者的潜在跌倒风险。这些信息有助于加深对帕金森病患者在不规则表面上步态适应性的理解，并可能为这一高跌倒风险人群的步态训练和康复干预提供指导。
