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Development of a system for the assessment of a dual-task performance based on a motion-capture device

  • Kazuya Okamoto EMAIL logo , Hiroki Kayama , Minoru Yamada , Naoto Kume , Tomohiro Kuroda and Tomoki Aoyama
Published/Copyright: August 13, 2014

Abstract

The authors produced a dual task (DT) that provided a dynamic balance task and a cognitive task in a game system using motion sensors and virtual images. There had been no DT where a cognitive task needs a dynamic balance task that requires full-body motions. We developed and evaluated a game system to assess the performance of the DT. The DT was to solve a Sudoku puzzle using full-body motions like Tái Chi. An ability to perform a DT is intimately related to risk of falls. To evaluate the developed system, we compared the performance of elderly people and young people. Generally, elderly people are at a higher risk of falls. Twenty elderly community-dwelling adults (mean age, 73.0±6.2 years) and 16 young adults (mean age, 21.8±1.0 years) participated in this study. To compare the two groups, we applied an independent-samples t-test. The time taken for the elderly people was 60.6±43.2 s, whereas the time taken for the young people was 16.0±4.8 s. The difference is statistically significant (p<0.05). This result suggests that the developed game system is useful for the evaluation of the DT performance.


Corresponding author: Kazuya Okamoto, PhD, Assistant Professor, Kyoto University Hospital, Division of Medical Information Technology and Administration Planning, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto-shi, Kyoto, Japan, E-mail:

Acknowledgments

This work was supported by KAKENHI (24700248).

References

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Received: 2013-4-10
Accepted: 2013-5-23
Published Online: 2014-8-13
Published in Print: 2014-9-1

©2014 by De Gruyter

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