| Effect of cognitive dual task on body balance |
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| DOI： |
| EN KeyWords: cognitive load balance single task dual task music |
| Fund Project:上海市科委“科技创新行动计划”重大项目（13411951100），卫计委项目（2013SY002） |
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| EN Abstract: |
| 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 axis,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. |
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