2025-04-24 国立長寿医療研究センター
図1. 東京都で開催された運動教室の運動強度の経時推移 (参加者数24名)
<関連情報>
- https://www.ncgg.go.jp/ri/report/20250424.html
- https://www.ncgg.go.jp/ri/report/documents/250424_press-release.pdf
- https://www.sciencedirect.com/science/article/pii/S2534773X25000035
軽度認知障害高齢者を対象としたライブオンライン運動セッションにおける遵守と有酸素運動強度:認知症予防のための日本マルチモーダル介入試験からの知見 Adherence and aerobic exercise intensity in live online exercise sessions for older adults with mild cognitive impairment: Insights from the Japan-Multimodal Intervention Trial for the Prevention of Dementia
Taiki Sugimoto, Kazuaki Uchida, Yoko Yokoyama, Ayaka Onoyama, Kosuke Fujita, Yujiro Kuroda, Keigo Hinakura, Susumu Ogawa, Hiroyuki Suzuki, Yoshinori Fujiwara, Paul K Crane, Hidenori Arai, Takashi Sakurai, J-MINT study group
The Journal of Aging Research & Lifestyle Available online: 7 February 2025
DOI:https://doi.org/10.1016/j.jarlif.2025.100003
Abstract
Background
Intervention adherence is crucial to ensure cognitive benefits in trials designed to prevent cognitive decline. During the coronavirus disease 2019 (COVID-19) pandemic, the Japan-Multimodal Intervention Trial for the Prevention of Dementia offered live online exercise sessions to older adults with mild cognitive impairment (MCI).
Objectives
To assess adherence and aerobic exercise intensity through live online exercise sessions in older adults with MCI.
Design
Posthoc analysis of the 18-month, multi-center, randomized controlled trial.
Setting
The study was conducted across five institutions in Japan.
Participants
Older adults aged 65–85 years who were assigned to the intervention group and completed the intervention. Participants were stratified by region (Aichi and Tokyo), where the state of emergency duration due to COVID-19 varied.
Interventions
The intervention group participated in multidomain interventions, including 90-minute group-based physical exercise sessions held weekly for 78 sessions. During the state of emergency, live online sessions were conducted via video conferencing.
Measurements
Attendance rates and aerobic exercise intensity (based on heart rates) during online and onsite sessions were compared using the Wilcoxon signed-rank test.
Results
A total of 207 participants were analyzed. Over 18 months, 78 exercise sessions were conducted, including live online sessions. In the Aichi region, 2 online sessions were held, while in the Tokyo region, 24 online sessions were conducted. In the Tokyo region, adherence was higher in online sessions compared to onsite sessions (92 % vs. 86 %, p = 0.046), while exercise intensity showed no significant difference (49 % vs. 52 %, p = 0.279). No adverse events were reported.
Conclusions
Live online exercise sessions were safe, feasible, and demonstrated adherence and intensity comparable to onsite sessions.
Trial registration
The trial was registered at the University Hospital Medical Information Network Clinical Trials Registry (UMIN-CTR) on November 24, 2019 (UMIN000038671) (https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000044075).
