Anticipatory Planning of Functional Reach-to-Grasp
Anticipatory Planning of Functional Reach-to-Grasp
复制标题
功能范围的预期规划
DOI：
--
复制
发表时间：
2012
影响因子：
4.2
通讯作者：
C. Winstein
中科院分区：
文献类型：
--
作者：
Caroline Tan;J. Tretriluxana;Erica A. Pitsch;N. Runnarong;C. Winstein
背景。以任务为导向的强化训练，如约束诱导运动疗法（CIMT），被认为涉及运动学习和决策过程，包括预期行动计划。目标。目的：探讨CIMT对预期手姿选择和动作时间对特定任务伸手抓握行为的影响。方法。亚急性和慢性卒中后参与者被招募到CIMT组（n = 10）或非CIMT组（n = 10）。通过Wolf运动功能测试（WMFT）、运动活动日志（MAL）和一项旨在测试预期手部姿势选择的独特的熟练伸手-抓握任务，在2周前后评估手臂和手部功能。在两种情况下，手前旋（低难度）和旋后旋（高难度）的抓握力度和抓握精度均达到最佳。结果测量包括成功率、最佳策略选择频率和运动时间。结果。组间比较显示WMFT和MAL评分的治疗效果显著。CIMT组在成功率、最佳姿势选择（仅精确抓握）和旋转条件下更快的运动时间方面表现出更大的收益。结论。总之，在更困难的任务条件下，更快的运动时间和更频繁的最佳手部姿势选择突出了一系列新的发现。这些结果为训练引起的上肢功能改善提供了证据，支持神经行为恢复而不是补偿。虽然这些发现是初步的，因为样本量小，但作者认为，它们可能有助于设计和推动更大规模的研究，以进一步了解任务导向训练干预在神经康复中的基本机制。
Background. Intensive task-oriented training such as constraint-induced movement therapy (CIMT) is thought to engage motor learning and decision-making processes, including anticipatory action planning. Objective. To identify the effects of CIMT on anticipatory hand posture selection and movement time for task-specific reach-to-grasp performance. Methods. Subacute and chronic poststroke participants were recruited into CIMT (n = 10) or non-CIMT (n = 10) groups. Arm and hand functions were assessed before and after 2 weeks with the Wolf Motor Function Test (WMFT), Motor Activity Log (MAL), and a unique skilled reach-to-grasp task designed to test anticipatory hand posture selection. The reach-to-grasp tasks included power and precision grasping in 2 conditions achieved optimally with either a pronated (low difficulty) or supinated (high difficulty) hand posture. Outcome measures included success rate, frequency of optimal strategy selection, and movement time. Results. Between-group comparisons revealed a significant treatment effect for WMFT and MAL scores. The CIMT group showed larger gains in success rate, optimal posture selection (precision grasp only), and faster movement times for the supinated conditions. Conclusion. Together, a faster movement time and greater frequency of optimal hand posture selection in the more difficult task condition highlights a set of novel findings. These results provide evidence for training-induced improvements in upper-extremity function that support neurobehavioral recovery more than compensation. Although these findings are preliminary in view of the small sample size, the authors suggest that they may be useful to design and power larger-scale studies to further the understanding of the fundamental mechanisms induced by task-oriented training interventions in neurorehabilitation.
DOI：
10.1016/j.apmr.2008.09.574
发表时间：
2009-04-01
影响因子：
4.3
作者：
Massie, Crystal;Malcolm, Matthew P.;Thaut, Michael
通讯作者：
Thaut, Michael
影响因子：
120.7
作者：
Wolf, Steven L.;Winstein, Carolee J.;Nichols-Larsen, Deborah
通讯作者：
Nichols-Larsen, Deborah