Stegemöller Elizabeth L, Berg Riley, Warnecke Alison, Hammer Mollie
Department of Kinesiology, Iowa State University, Ames, IA, United States.
Front Hum Neurosci. 2023 Sep 1;17:1197247. doi: 10.3389/fnhum.2023.1197247. eCollection 2023.
Much research has examined the relationship between bradykinesia and gait impairment in persons with Parkinson's disease (PD). Specifically, impairments in repetitive movements of the upper extremity have been associated with freezing of gait. Studies examining lower extremity repetitive movements are limited. Moreover, the use of external cueing has been a treatment strategy for both bradykinesia and gait, but information on how cues should be used is lacking. The purpose of this study was to compare the effects of auditory cueing on one side versus both sides for bilateral repetitive toe tapping and gait, and to determine if there was a relationship between toe tapping and gait. We hypothesize that there will be no difference between the cueing conditions, but that there will be a significant association between repetitive toe tapping performance and gait performance.
Twenty-seven persons with PD completed a toe tapping task in which the more affected side was cued at 70 beats per minute (BPM), the less affected side was cued at 70 BPM, and both sides were cued at 140 BPM. The same cueing conditions were completed for the gait task. Inter movement interval and amplitude data was collected and analyzed for the toe tapping task. Stance time, swing time, step length, and step width were collected and analyzed for the gait task.
Results revealed a significant difference in movement performance between the single side cueing conditions and both sides cued condition for inter movement interval (toe tapping), stance time (gait), step length (gait), and step width (gait). Moreover, results revealed a significant association between inter movement interval and stance time and step length.
These results would suggest that cueing both sides is better than only one side and that there is a relationship between toe tapping and gait performance when both sides are cued in persons with PD. This study adds to the literature exploring possible shared mechanisms between bradykinesia and gait in persons with PD.
许多研究探讨了帕金森病（PD）患者运动迟缓与步态障碍之间的关系。具体而言，上肢重复运动障碍与步态冻结有关。研究下肢重复运动的研究有限。此外，使用外部提示一直是治疗运动迟缓和步态的一种策略，但缺乏关于如何使用提示的信息。本研究的目的是比较单侧听觉提示与双侧听觉提示对双侧重复足尖轻敲和步态的影响，并确定足尖轻敲与步态之间是否存在关系。我们假设提示条件之间没有差异，但重复足尖轻敲表现与步态表现之间将存在显著关联。
27名PD患者完成了一项足尖轻敲任务，其中受影响较重的一侧以每分钟70次节拍（BPM）进行提示，受影响较轻的一侧以70 BPM进行提示，双侧均以140 BPM进行提示。步态任务采用相同的提示条件。收集并分析足尖轻敲任务的运动间隔和幅度数据。收集并分析步态任务的站立时间、摆动时间、步长和步宽。
结果显示，在运动间隔（足尖轻敲）、站立时间（步态）、步长（步态）和步宽（步态）方面，单侧提示条件与双侧提示条件之间的运动表现存在显著差异。此外，结果显示运动间隔与站立时间和步长之间存在显著关联。
这些结果表明，双侧提示优于单侧提示，并且在PD患者中双侧提示时足尖轻敲与步态表现之间存在关系。本研究为探索PD患者运动迟缓和步态之间可能的共同机制的文献增添了内容。
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