Influence of a Dual Task while Stepping Over an Obstacle in the Fall-experienced Elderly People

[Purpose] The purpose of this study was to investigate the influence of a dual-task on movements of stepping over an obstacle by elderly people who had a fall experience in the past year. [Subjects] Subjects were 7 people who had a history of falls and 22 people who had no history of falls in the pa...

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Bibliographic Details
Published in:Journal of Physical Therapy Science 2011, Vol.23(3), pp.369-372
Main Authors: Soma, Masayuki, Nakae, Hideyuki, Abiko, Teppei, Shimamura, Ryouta, Uematsu, Hisashi, Kawama, Kennosuke
Format: Article
Language:English
Subjects:
Dual task
Faller
Obstacle
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Summary:[Purpose] The purpose of this study was to investigate the influence of a dual-task on movements of stepping over an obstacle by elderly people who had a fall experience in the past year. [Subjects] Subjects were 7 people who had a history of falls and 22 people who had no history of falls in the past year. [Methods] Subjects were divided into fallers group while subjects performed and non-fallers group by based on interview results. We measured toe clearance the single and dual tasks. The single task was a solitary motor task. The dual task consisted of a motor task and a concurrent cognitive task. The motor task was stepping over an obstacle during comfortable gait, and the cognitive task was the serial subtraction of seven from 100. [Results] Two-way ANOVA showed that toe-obstacle distance had a significant interaction effect. [Conclusion] These results suggest that fallers and non-fallers may have different strategies for stepping over an obstacle.
ISSN:0915-5287
2187-5626
DOI:10.1589/jpts.23.369