中国康复
中國康複
중국강복
CHINESE JOURNAL OF REHABILITATION
2014年
2期
83-85
,共3页
认知负荷%平衡%单项任务%双重任务%音乐
認知負荷%平衡%單項任務%雙重任務%音樂
인지부하%평형%단항임무%쌍중임무%음악
cognitive load%balance%single task%dual task%music
目的：探讨单项认知任务和双重认知任务的区别，以及音乐双重任务与心算双重任务对平衡功能的不同影响。方法：选取青年25名，在静态平衡仪上进行睁眼与闭眼状态下的左右单足支撑站立测试，共3次，每次间隔2周。3次测试分别为：单项任务、音乐双重任务和心算题双重任务平衡测试。记录重心左右及前后最大摆幅、重心外周面积。结果：3种测试任务中，左右腿之间的差异无统计学意义；音乐双重任务测试和单项任务测试之间无统计学差异。睁眼测试的左右最大摆幅、前后最大摆幅和重心外周面积明显低于闭眼测试（P＜0．05）。心算题双重任务测试在睁眼测试重心左右及前后最大摆幅和重心外周面积上较单项任务测试、音乐双重任务测试均有明显增加（P＜0．05），而闭眼测试的变化并不具统计学差异。结论：视觉是维持机体平衡的重要感觉系统之一，并受认知任务和认知负荷分配的影响。
目的：探討單項認知任務和雙重認知任務的區彆，以及音樂雙重任務與心算雙重任務對平衡功能的不同影響。方法：選取青年25名，在靜態平衡儀上進行睜眼與閉眼狀態下的左右單足支撐站立測試，共3次，每次間隔2週。3次測試分彆為：單項任務、音樂雙重任務和心算題雙重任務平衡測試。記錄重心左右及前後最大襬幅、重心外週麵積。結果：3種測試任務中，左右腿之間的差異無統計學意義；音樂雙重任務測試和單項任務測試之間無統計學差異。睜眼測試的左右最大襬幅、前後最大襬幅和重心外週麵積明顯低于閉眼測試（P＜0．05）。心算題雙重任務測試在睜眼測試重心左右及前後最大襬幅和重心外週麵積上較單項任務測試、音樂雙重任務測試均有明顯增加（P＜0．05），而閉眼測試的變化併不具統計學差異。結論：視覺是維持機體平衡的重要感覺繫統之一，併受認知任務和認知負荷分配的影響。
목적：탐토단항인지임무화쌍중인지임무적구별，이급음악쌍중임무여심산쌍중임무대평형공능적불동영향。방법：선취청년25명，재정태평형의상진행정안여폐안상태하적좌우단족지탱참립측시，공3차，매차간격2주。3차측시분별위：단항임무、음악쌍중임무화심산제쌍중임무평형측시。기록중심좌우급전후최대파폭、중심외주면적。결과：3충측시임무중，좌우퇴지간적차이무통계학의의；음악쌍중임무측시화단항임무측시지간무통계학차이。정안측시적좌우최대파폭、전후최대파폭화중심외주면적명현저우폐안측시（P＜0．05）。심산제쌍중임무측시재정안측시중심좌우급전후최대파폭화중심외주면적상교단항임무측시、음악쌍중임무측시균유명현증가（P＜0．05），이폐안측시적변화병불구통계학차이。결론：시각시유지궤체평형적중요감각계통지일，병수인지임무화인지부하분배적영향。
Objective :To compare the differences among single task ,music dual task and mental arithmetic dual task on body balance .Methods :The balance function (standing on one leg in eyes-open and eyes-closed situations) of 25 normal university students was recorded .Subjects were tested in three different conditions :single task ,dual task 1 (music group) and dual task 2 (mental arithmetic group) .The maximum and average deviation of center of pressure in both frontal and vertical plane and peripheral area of center of pressure were collected .Results :There was no significant difference in the three tasks tested between the left and right leg conditions .The data of maximum deviation of center of pressure in eyes-open situations were all less than in eyes-close situations in single task test , dual task 1 and dual task 2 (P<0 .05) .No significant difference was found between single task and dual task 1 ,but maximum deviation of center of pressure in dual task 2 was increased significantly ,and that in the anteroposterior ax-is ,coronal axis and the peripheral area in the dual task 1 in eyes-open situation as compared with single task (P<0 .05) .No increase was observed in eyes-closed situation .Conclusion :Visual system may play an important role in keeping balance of human bodies ,but it is disturbed by cognitive load and distribution .
