2020 Fiscal Year Final Research Report
Dynamic stability during fast walking in elderly adults
Project/Area Number |
19K24302
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Research Category |
Grant-in-Aid for Research Activity Start-up
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Allocation Type | Multi-year Fund |
Review Section |
0909:Sports sciences, physical education, health sciences, and related fields
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Research Institution | National Institute of Advanced Industrial Science and Technology |
Principal Investigator |
Hida Naoto 国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 産総研特別研究員 (80850552)
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Project Period (FY) |
2019-08-30 – 2021-03-31
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Keywords | 歩行 / 高齢者 / 重心 / 動的安定性 / 転倒予防 |
Outline of Final Research Achievements |
The purpose of this study was to assess the difference in dynamic stability between young and older adults during normal and fast walking. Position and velocity of the center of mass (COM) were calculated in normal and fast walking in young and older adults. Boundaries of the region of stability were determined based on the COM position and velocity, and the margin to the forward boundary was calculated as the stability margin. Although no significant difference was detected in the stability margin, the COM for the older adults was significantly more anteriorly positioned during fast walking, which seems to result from their significantly shorter step length. These results suggest that older adults are dynamically unstable during fast walking as young are, although they walk with a shorter step.
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Free Research Field |
歩行分析
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Academic Significance and Societal Importance of the Research Achievements |
本研究の結果から,速度条件に寄らず高齢者の歩行中の重心は若年者と同程度前方に不安定であるが,最大速度での歩行時には,若年者と高齢者の間で歩幅の違いが顕著に表れることが明らかとなった.これらの結果は,高齢者の転倒メカニズムに対して動的バランス制御の観点から新たな知見を与えるものである.得られた知見は,高齢者の効果的な転倒予防トレーニングの確立につながる.
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