Ju Sung-Kwang, Yoo Won-Gyu
Department of Physical Therapy, The Graduate School, Inje University, Republic of Korea.
Department of Physical Therapy, College of Biomedical Science and Engineering, Inje University, Republic of Korea.
J Phys Ther Sci. 2014 Dec;26(12):1869-70. doi: 10.1589/jpts.26.1869. Epub 2014 Dec 25.
[Purpose] The purpose of this study was to investigate how different standing surfaces alter somatosensory input and how postural control is affected by these changes during the performance of a dual task with a cognitive-motor aspect. [Subjects] The subjects were 20 chronic stroke patients: 18 males, 2 females. [Methods] COP total distance, sway velocity, and the weight load on the paretic leg were measured while subjects performed the following three tasks (somatosensory task, cognitive-motor task, and dual task). [Results] Both COP total distance and sway velocity significantly decreased during the performance of all tasks. COP total distance and sway velocity significantly decreased during the somatosensory task and the dual task. The weight load significantly increased during performance of the somatosensory task and the dual task. [Conclusion] Compensatory mechanisms in the non-paretic leg were limited by placing it on an air cushion, and we observed an increase in somatosensory input from the paretic leg due to an enhanced weight load.
[目的] 本研究旨在探讨不同的站立表面如何改变体感输入，以及在执行具有认知 - 运动方面的双重任务期间，姿势控制如何受到这些变化的影响。[受试者] 受试者为20名慢性中风患者：18名男性，2名女性。[方法] 在受试者执行以下三项任务（体感任务、认知 - 运动任务和双重任务）时，测量重心总位移（COP）、摆动速度和患侧腿的负重。[结果] 在所有任务执行期间，COP总距离和摆动速度均显著降低。在体感任务和双重任务期间，COP总距离和摆动速度显著降低。在体感任务和双重任务执行期间，负重显著增加。[结论] 将非患侧腿置于气垫上限制了其代偿机制，并且我们观察到由于负重增加，患侧腿的体感输入增加。
