Development of intervention strategy for reducing sedentary time in older population

• Project/Area Number: 15K01534
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Developmental mechanisms and the body works
• Research Institution: Bunka Gakuen University
• Principal Investigator: Akitomo Yasunaga 文化学園大学, 現代文化学部, 准教授 (30289649)
• Co-Investigator(Kenkyū-buntansha): 岡 浩一朗 早稲田大学, スポーツ科学学術院, 教授 (00318817)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 高齢者 / 座位行動 / 身体活動 / 身体機能 / メンタルヘルス / 加速度センサー付活動量計 / 健康関連QOL

Outline of Final Research Achievements

The aim of this study was to clarify sedentary time assessed using an accelerometer, to examine the associations of objectively-assessed sedentary time with demographic factors and various health outcomes, and to develop an intervention strategy for reducing sedentary time in older population. Our findings indicated that decreasing sedentary time and increasing daily habitual physical activity contribute to improvements in physical function and mental health.　An intervention strategy to give the knowledge related to sedentary behavior was effective to reduce sedentary time of older people.

Research Products

• [Int'l Joint Research] Baker Heart and Diabetes Institute/Australian Catholic University/Swinburne University of Technology(Australia)
• [Journal Article] Associations of sedentary behavior and physical activity with older adults’ physical function: an isotemporal substitution approach (2017)
  • Author(s): Yasunaga A, Shibata A, Ishii K, Koohsari MJ, Inoue S, Sugiyama T, Owen N, Oka K
  • Journal Title: BMC Geriatrics Volume: 17 Issue: 1 Pages: 280-280
  • DOI: 10.1186/s12877-017-0675-1
  • NAID: 120007128710
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Objectively-measured sedentary behavior and physical activity with depression in older adults: An isotemporal substitution analysis. (2017)
  • Author(s): Akitomo Yasunaga, Ai Shibata, Kaori Ishii, Koichiro Oka
  • Organizer: 31st Conference of the European Health Psychology Society
  • Place of Presentation: Padova (Italy)
  • Year and Date: 2017-08-29
  • Int'l Joint Research
• [Presentation] 高齢者の運動機能に対する座位行動および身体活動の影響－Isotemporal substitution modelによる置き換え効果の検討－ (2016)
  • Author(s): 柴田愛、石井香織、安永明智、岡浩一朗
  • Organizer: 第71回日本体力医学会大会
  • Place of Presentation: いわて県民情報交流センター・アイーナ（岩手県盛岡市）
  • Year and Date: 2016-09-24
• [Presentation] Associations of objectively measured sedentary behavior and physical activity with health-related quality of life in older Japanese adults: An isotemporal substitution analysis (2016)
  • Author(s): Akitomo Yasunaga, Ai Shibata, Kaori Ishii, Koichiro Oka
  • Organizer: World Congress on Active Ageing 2016
  • Place of Presentation: Melbourne, Australia
  • Year and Date: 2016-06-28
  • Int'l Joint Research