TY  - JOUR
PY  - 2024//
TI  - Changes in physical activity during the year after the Great East Japan Earthquake and future frailty in older survivors
JO  - Geriatrics and gerontology international
A1  - Tsubota-Utsugi, Megumi
A1  - Sasaki, Ryohei
A1  - Suzuki, Ruriko
A1  - Tanno, Kozo
A1  - Kuno, Junji
A1  - Shimoda, Haruki
A1  - Sakata, Kiyomi
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - AIM: This study examines whether changes in physical activity (PA) during the first year after the Great East Japan Earthquake and Tsunami (2011-2012) contributed to preventing the onset of future frailty among older survivors of the disaster. <br><br>METHODS: This study tracked 2561 physically active Japanese survivors aged ≥ 65 years (43.6% men; mean age 72.9 years) who had completed self-administered questionnaires in 2011 and 2012. PA levels for participants were classified into four categories based on ≥23 and <23 metabolic equivalent hours/week in 2011 and 2012: "consistently low," "decreasing," "increasing," and "consistently high." Frailty was defined as a Kihon Checklist score ≥ 5, which is used in the long-term care insurance system in Japan. Hazard ratios were calculated for the onset of frailty using a Cox proportional hazards model that fitted the proportional sub-distribution hazards regression model with weights for competing risks of death. <br><br>RESULTS: From 2012 to 2018, 283 men and 490 women developed frailty. Men with consistently high or increasing PA during the first year after the disaster had a lower risk of frailty. Furthermore, even increasing PA by walking for just 30 min/day prevented future frailty in men; however, this association between a change in PA and the decreased risk of frailty was not observed in women. <br><br>CONCLUSIONS: Older men who remained physically active or resumed PA at an early stage and at a low intensity, even after being physically inactive owing to the disaster, were able to prevent future frailty. Geriatr Gerontol Int 2024; ••: ••-••.<p />  <p>Language: en</p>
LA  - en
SN  - 1444-1586
UR  - http://dx.doi.org/10.1111/ggi.14882
ID  - ref1
ER  -