Interference between Simultaneous Postural Control and the Visuospatial Memory Task

同時姿勢控制和視覺空間記憶任務之間的幹擾

蘇津平(Jin-Pyng Su)

《The Changhua Journal of Medicine》 7卷1期 (2002/01) Pp. 14-24

摘要

背景：當治療平衡缺陷的病患時，職能治療師常忽略姿勢控制的認知成分。本研究目的在於探討同時姿勢控制與視覺空間記憶任務之間的干擾。
材料與方法：研究設計採平衡重覆測量設計結合修飾過的雙重任務模式，三十二位健康年輕的參與者個別被隨機分配至某一順序，於單一任務和雙重任務的情況下做感覺整合測驗、重心轉移測驗、及視覺空間記憶任務。
結果：研究結果顯示姿勢控制與視覺空間記憶任務之表現在雙重任務的情況下比在單一任務的情況下顯著較差，反映於姿勢控制平衡分數、姿勢控制策略分數、偏好視覺比率、軸上速度、及記憶分數。
結論：研究發現建議治療師可能將姿勢控制的認知成分整合入平衡訓練的治療計劃中，本研究也提供姿勢控制之任務導向模式的證據。

關鍵字

雙重任務 ； 平衡 ； 認知

並列摘要

When treating clients with balance deficits, occupational therapists often ignore the cognitive component of postural control. The purpose of this study was to investigate the interference that occurs between simultaneous performance of postural control and the visuospatial memory task.
A counterbalanced repeated measures design combined with the modified dual-task paradigm was used to test 32 healthy, young participants. They performed the Sensory Organization Test, Rhythmic Weight Shift Test, and the visuospatial memory task under single-task and dual-task conditions.
The results showed that performance of postural control and the visuospatial memory task was significantly poorer under the dual-task conditions than under the single-task conditions, based on equilibrium scores, strategy scores, visual preference ratio, on-axis velocity, and mental scores.
The findings suggest that therapists might integrate the cognitive component of postural control into their treatment plan for balance training. This study also provides evidence for the task-oriented model of postural control.

並列關鍵字

dual-task ； balance ； cognition