StartReact increases the probability of muscle activity and distance in severe/moderate stroke survivors during two-dimensional reaching task.
StartReact increases the probability of muscle activity and distance in severe/moderate stroke survivors during two-dimensional reaching task.
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StartReact 增加了重度/中度中风幸存者在二维伸展任务期间肌肉活动和距离的可能性。
DOI：
10.1007/s00221-020-05797-9
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发表时间：
2020
影响因子：
2
通讯作者：
Honeycutt,ClaireF
中科院分区：
文献类型：
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作者：
Rahimi,Marziye;Honeycutt,ClaireF
StartReact在中风幸存者中产生更快，更大，更适当的肌肉激活，但迄今为止仅在多关节伸展过程中进行了粗略的研究。我们的目标是评估中风后不受限制的二维点对点到达任务的StartReact。从23个中风患者的数据收集在点对点达到。自愿和StartReact试验在轻度、重度/中度和未受损手臂之间进行了比较。StartReact显示肌肉活动的概率增加，肌肉活动幅度更大，肌肉活动开始更快。尽管肌肉活动发生了变化，但StartReact和Voluntary试验之间的运动指标（距离，最终误差，线性偏差）没有差异，除了在StartReact期间具有较大到达距离的重度/中度卒中。虽然StartReact影响了肌肉活动的许多指标，但最深刻的影响是肌肉活动的概率与自愿相比增加了34%，这允许重度/中度受试者增加到达距离，但并没有转化为最终误差的减少，这表明额外的运动并不总是指向适当的目标。这些结果表明，SR有能力激活瘫痪的肌肉在重度/中度患者，但未来的研究需要探索SR在康复中的可能用途。
StartReact elicits faster, larger, and more appropriate muscle activation in stroke survivors but has been only cursorily studied to date during multi-jointed reaching. Our objective was to evaluate StartReact on unrestricted, two-dimensional point-to-point reaching tasks post-stroke. Data from 23 individuals with stroke were collected during point-to-point reaching. Voluntary and StartReact trials were compared between mild, severe/moderate, and the unimpaired arm. StartReact showed an increase in probability of muscle activity, larger muscle activity amplitude, and faster muscle activity onset. Despite changes in muscle activity, metrics of movement (distance, final error, linear deviation) were not different between StartReact and Voluntary trials except in severe/moderate stroke who had larger reaching distances during StartReact. While StartReact impacted many metrics of muscle activity, the most profound effect was on the probability of muscle activity increasing 34% compared to voluntary which allowed severe/moderate subjects to increase reaching distance but did not translate to decrease in final error suggesting that the additional movement was not always directed towards the appropriate target. These results indicate that SR has the capacity to activate paralyzed muscle in severe/moderate patients, but future studies are needed to explore the possible use of SR in the rehabilitation.