Association of Light-Intensity Physical Activity With Mortality in the Older Population: A Nationwide Cohort Study

Frontiers in Cardiovascular Medicine

article

Juntae Kim¹  Pil-Sung Yang²  Byoung-Eun Park¹  Tae Soo Kang¹  Seong-Hoon Lim¹  Sungsoo Cho¹  Su-Yeon Lee¹  Young Hak Chung¹  Myung-Yong Lee¹  Dongmin Kim¹  Boyoung Joung³ 

[1] Division of Cardiology, Department of Internal Medicine, College of Medicine, Dankook University;Department of Cardiology, CHA Bundang Medical Center, CHA University;Division of Cardiology, Department of Internal Medicine, Yonsei University College of Medicine

关键词: sport cardiology;    exercise;    light-intensity physical activity;    elderly;    all-cause mortality;    cardiovascular mortality;   

DOI  :  10.3389/fcvm.2022.859277

学科分类：地球科学(综合)

来源: Frontiers

【 摘 要 】

Background There is a paucity of information about mortality related to light-intensity physical activity (LPA) in the older population. We examine the associations between physical activity and mortality, focusing on the effect of light-intensity physical activity and the dose-response relationship between physical activity and mortality. Methods We analyzed a total of 58,537 participants aged ≥ 65 years (mean age, 73.9 ± 5.8 years; male, 36.0%) in the Korean National Health Insurance Service database between 2009 and 2012. The Date of the end of follow-up was December 31, 2013. Individuals were divided into four categories according to physical activity intensity: totally sedentary (43.3%), LPA only (35.8%), LPA and moderate- to vigorous-intensity physical activity (MVPA) (16.3%), MVPA only (4.5%). Physical activity was quantified using standardized self-reported questionnaires which composed of the duration and frequency of physical activity. Results During a mean follow-up of 39.6 ± 14.0 months, 5,651 (9.7%) deaths occurred. Compared with totally sedentary individuals, those in the LPA only, LPA and MVPA, and MVPA only groups showed 26% [hazard ratio (HR) 0.74, 95% confidence interval (CI) 0.68–0.82], 27% (HR 0.73, 95% CI 0.63–0.84), and 34% (HR 0.66, 95% CI 0.54–0.79) lower all-cause mortality risk, showing an inverse relationship between physical activity intensity and mortality risk. In contrast, the LPA only, LPA and MVPA, and MVPA only groups represented a stronger inverse association with CV mortality (LPA: HR 0.76, 95% CI 0.62–0.92; LPA with MVPA: HR 0.74, 95% CI 0.55–0.999; MVPA, HR 0.57, 95% CI 0.37–0.87). Among participants performing LPA alone, participants performing less than the recommended dose of physical activity had lower all-cause mortality than those with sedentary activity (1–249 MET-min/week: HR 0.74, 95% CI 0.67–0.82, 250–499 MET-min/week: HR 0.65, 95% CI 0.59–0.72). Conclusion Physical activity, even low doses of LPA, was associated with reduced mortality risk in the elderly population. This study may motivate sedentary individuals to engage in any physical activity for mortality benefits.

【 授权许可】

CC BY