Associations Between Active Mobility Index and Disability

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K19475
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 59010:Rehabilitation science-related
• Research Institution: National Center for Geriatrics and Gerontology
• Principal Investigator: Tsutsumimoto Kota 国立研究開発法人国立長寿医療研究センター, 研究所 老年学・社会科学研究センター, プロジェクトリーダー (70633189)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 高齢者

Outline of Final Research Achievements

A questionnaire-based Active Mobility Index (AMI) was developed to assess older adults' outgoing behavior with physical and social activity, and the criterion-relevance and predictive validity of the AMI were evaluated. Study participants were 4432 older adults. The AMI assessed activity in living spaces and each living space according to physical or social activity in the past month and compared by AMI score quartile (highest: Q4) To examine criterion-relevant validity of the AMI, depressive symptoms, frailty, and cognitive function were assessed. by Cox proportional hazards modeling, Q1 group showed a higher risk of developing disability compared to the group (hazard ratio 1.53, 95% CI 1.24-1.88).

Free Research Field

老年医学

Academic Significance and Societal Importance of the Research Achievements

高齢者の身体的・社会的活動を伴う生活空間を評価するAMIは、抑うつ症状、虚弱、認知障害と関連していた。AMIスコアが低いほど、障害リスクが高いことと関連していた。AMIが有害な健康転帰の発症と因果関係があるかどうかを明らかにするためには、さらなる研究が必要である。