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Postural control, falls and Parkinson's disease: Are fallers more asymmetric than non-fallers?

机译:姿势控制,瀑布和帕金森病:比非衰落者更不对称?

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Postural control asymmetry is an important aspect of Parkinson's disease (PD) that may be associated with falls. The aim of this study was to compare the postural control asymmetry during postural tasks between fallers and non-fallers in people with PD and neurological healthy age matched controls (CG). Individuals with idiopathic PD (n = 24) and CG (n = 24) were sub-divided into groups of fallers and non-fallers based on their fall history over the past year. Participants performed blocks of three 30-s trials of quiet standing with feet in a side-by-side and semi-tandem stance position. The center of pressure parameters for each limb were measured and used to calculate the symmetry index. Fallers compared to non-fallers had decreased asymmetry of vertical force in the side-by-side condition. During the tandem-front leg condition, PD non-fallers increased asymmetry of the medial-lateral velocity of sway compared to CG non-fallers. In addition, for the tandem-back leg condition, PD non-fallers increased asymmetry of total displacement and medial-lateral root mean square and mean velocity of sway compared to PD fallers. The results of the study did not support the hypothesis that PD fallers are more asymmetric than PD non-fallers. On the contrary, our results indicated that PD non-fallers had higher postural control asymmetry, especially during the more challenging (semi-tandem standing) postural task.
机译:姿势控制不对称是帕金森病(PD)的重要方面,可能与跌倒有关。本研究的目的是比较衰落和非衰落的姿势任务期间的姿势控制不对称,与PD和神经系统健康年龄匹配对照(CG)的患者。具有特发性Pd(n = 24)和CG(n = 24)的个体基于过去一年的秋季历史分为衰落和非衰退组。参与者在一个并排和半串联立场位置进行了三个安静的静音试验的块。测量每个肢体的压力参数中心,并用于计算对称性指数。与非衰退相比的衰退在并排条件下的垂直力的不对称性降低。在串联腿部条件下,与CG非衰退相比,Pd非衰落者增加了摇摆内侧横向速度的不对称性。另外,对于串联后腿条件,与PD衰落相比,Pd非衰落者增加了总位移和内侧横向根部平方和摇摆的平均速度的不对称性。该研究的结果并不支持PD衰落的假设比Pd非衰落更不对称。相反,我们的结果表明,PD非衰落的姿势控制不对称性更高,特别是在更具挑战性(半串联的站立)姿势任务期间。

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