Peters Sue, Handy Todd C, Lakhani Bimal, Boyd Lara A, Garland S Jayne
S. Peters, MPT, Department of Physical Therapy, The University of British Columbia, Vancouver, British Columbia, Canada.
T.C. Handy, PhD, Department of Psychology, The University of British Columbia.
Phys Ther. 2015 Oct;95(10):1423-32. doi: 10.2522/ptj.20140492. Epub 2015 Apr 30.
Attention and planning can be altered by stroke, which can influence motor performance. Although the influence of these factors on recovery from stroke has been explored for the upper extremity (UE), their impact on balance and gait are unknown. This perspective article presents evidence that altered motor and visuospatial attention influence motor planning of voluntary goal-directed movements poststroke, potentially affecting balance and gait. Additionally, specific strategies for rehabilitation of balance and gait poststroke in the presence of these factors are discussed. Visuospatial attention selects relevant sensory information and supports the preparation of responses to this information. Motor attentional impairments may produce difficulty with selecting appropriate motor feedback, potentially contributing to falls. An original theoretical model is presented for a network of brain regions supporting motor and visuospatial attention, as well as motor planning of voluntary movements. Stroke may influence this functional network both locally and distally, interfering with input or output of the anatomical or functional regions involved and affecting voluntary movements. Although there is limited research directly examining leg function, evidence suggests alterations in motor and visuospatial attention influence motor planning and have a direct impact on performance of gait and balance. This model warrants testing comparing healthy adults with individuals with stroke.
注意力和计划能力会因中风而改变,进而可能影响运动表现。尽管这些因素对上肢(UE)中风恢复的影响已得到研究,但其对平衡和步态的影响尚不清楚。这篇观点文章提出证据表明,运动和视觉空间注意力的改变会影响中风后自愿性目标导向运动的运动计划,可能会影响平衡和步态。此外,还讨论了在存在这些因素的情况下中风后平衡和步态康复的具体策略。视觉空间注意力选择相关的感觉信息,并支持对该信息做出反应的准备。运动注意力障碍可能会导致在选择适当的运动反馈时出现困难,这可能会导致跌倒。本文提出了一个关于支持运动和视觉空间注意力以及自愿运动的运动计划的脑区网络的原创理论模型。中风可能会在局部和远处影响这个功能网络,干扰所涉及的解剖或功能区域的输入或输出,并影响自愿运动。尽管直接研究腿部功能的研究有限,但有证据表明,运动和视觉空间注意力的改变会影响运动计划,并直接影响步态和平衡表现。该模型值得在健康成年人与中风患者之间进行测试比较。