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首页> 外文期刊>Gait & posture >Dual-tasking postural control in patients with right brain damage
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Dual-tasking postural control in patients with right brain damage

机译：右脑损伤患者的双重任务姿势控制

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The control of dual-tasking effects is a daily challenge in stroke neurorehabilitation. It maybe one of the reasons why there is poor functional prognosis after a stroke in the right hemisphere, which plays a dominant role in posture control. The purpose of this study was to explore cognitive motor interference in right brain-lesioned and healthy subjects maintaining a standing position while performing three different tasks: a control task, a simple attentional task and a complex attentional task. We measured the sway area of the subjects on a force platform, including the center of pressure and its displacements. Results showed that stroke patients presented a reduced postural sway compared to healthy subjects, who were able to maintain their posture while performing a concomitant attentional task in the same dual-tasking conditions. Moreover, in both groups, the postural sway decreased with the increase in attentional load from cognitive tasks. We also noticed that the stability of stroke patients in dual-tasking conditions increased together with the weight-bearing rightward deviation, especially when the attentional load of the cognitive tasks and lower limb motor impairments were high. These results suggest that stroke patients and healthy subjects adopt a similar postural regulation pattern aimed at maintaining stability in dual-tasking conditions involving a static standing position and different attention-related cognitive tasks. Our results indicate that attention processes might facilitate static postural control.
机译：在中风神经康复中，双重任务控制是日常的挑战。这可能是右半球中风后功能预后较差的原因之一，其在姿势控制中起主要作用。这项研究的目的是探索右脑病变和健康受试者在执行三个不同任务时保持站立姿势的认知运动干扰：控制任务，简单的注意任务和复杂的注意任务。我们在受力平台上测量了对象的摇摆面积，包括压力中心及其位移。结果显示，与健康受试者相比，中风患者的姿势摇摆减少，健康受试者能够在相同的双重任务条件下执行伴随的注意任务的同时保持姿势。此外，在两组中，姿势摇动都随着认知任务的注意力负荷增加而降低。我们还注意到，在双重任务情况下中风患者的稳定性随着负重向右偏差的增加而增加，尤其是在认知任务的注意力负荷和下肢运动障碍较高的情况下。这些结果表明，中风患者和健康受试者采用相似的姿势调节模式，旨在在涉及静态站立姿势和不同注意力相关认知任务的双重任务条件下保持稳定性。我们的结果表明注意过程可能有助于静态姿势控制。

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