Usefulness of functional gait reserve relative to activities of daily living in the elderly people

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  • Hashidate Hiroyuki
    Yamanashi Care Academy Gunma University Graduate School of Medicine, Courses of Health Sciences
  • Uchiyama Yasushi
    Gunma University Graduate School of Medicine, Courses of Health Sciences

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  • 地域在住高齢者における応用歩行予備能の有用性と生活機能との関連
  • チイキ ザイジュウ コウレイシャ ニ オケル オウヨウ ホコウ ヨビノウ ノ ユウヨウセイ ト セイカツ キノウ トノ カンレン

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Aim: The purpose of this study was to develop the index of functional gait reserve relative to gait endurance and gait conformability, and to examine the relationship between functional gait reserve and activities of daily living (ADL) in elderly individuals.<br> Methods: Subjects comprised 107 community-dwelling elderly individuals (mean age, 72.5 ±5.0 years) . We evaluated gait function using the timed"Up and Go"test (TUG) , 10-m walking time, 6-minute distance (6MD) , physiological cost index (PCI) and ratings of perceived exertion (RPE) , and investigated Tokyo Metropolitan Institute Gerontology-Index of Competence as an index of ADL. TUGs were performed at a comfortable speed (TUGcom) and maximum speed (TUGmax) , and TUG Reserve (TUG-R) was derived from the ratio of the difference between TUGmax and TUGcom as an index of functional gait reserve.<br> Results: Intraday reliability of TUG-R was high (intraclass correlation coefficient (1, 2) =0.82) , and TUG-R was correlated to 6MD, PCI and RPE, which was reflected in gait endurance and gait conformability. Scores for TUG-R were significantly lower in elderly individuals with ADL dependence than in independent elderly individuals. Multiple logistic regression analysis showed TUG-R as associated with performance of outdoor activities.<br> Conclusion: TUG-R offers a reliable and useful index of functional gait reserve related to gait endurance and ADL in elderly individuals.<br>

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