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Phys Act Nutr > Volume 25(2); 2021 > Article
Physical Activity and Nutrition 2021;25(2):26-32.
DOI: https://doi.org/10.20463/pan.2021.0012    Published online June 30, 2021.
Body mass index and relative handgrip strength are associated with the prevalence of hypertension in Korean elderly: Korean national fitness assessment in 2019
Ji Young Kim1, Hun-Young Park1,2, Jisu Kim1,2, Kiwon Lim1,2,3
1Physical Activity and Performance Institute (PAPI), Konkuk University, Seoul, Republic of Korea
2Department of Sports Medicine and Science in Graduate School, Konkuk University, Seoul, Republic of Korea
3Department of Physical Education, Konkuk University, Seoul, Republic of Korea
Correspondence:  Kiwon Lim, Tel: +82-2-450-3827, Fax: +82-452-6027, 
Email: exercise@konkuk.ac.kr
Received: 8 June 2021   • Revised: 29 June 2021   • Accepted: 29 June 2021
Abstract
[Purpose]
This study aimed to analyze the prevalence of hypertension according to the body mass index (BMI) and relative handgrip strength (RHGS) among elderly individuals in Korea.
[Methods]
We analyzed the data of 44,183 Korean elderly individuals over 65 years old (men: n = 15,798, age = 73.31 ± 5.04 years, women: n = 28,385, age = 72.14 ± 5.04 years) obtained from the Korean National Fitness Assessment in 2019. All the participants were categorized into three groups according to the BMI and RHGS; additionally, one-way ANOVA and logistic regression analysis were performed.
[Results]
Overweight (men: 1.16 odds ratio [OR] 1.06–1.26, 95% confidence interval [CI]; women: 1.15 OR, 1.07–1.23 95% CI) and obese (men: 1.54 OR, 1.42–1.66 95% CI; women: 1.44 OR, 1.36–1.53 95% CI) elderly individuals showed a higher prevalence of hypertension than elderly individuals with normal weight, after controlling for age. In men, a lower RHGS was associated with a higher prevalence of hypertension after controlling for age (weak RHGS: 1.09 OR, 1.00–1.17 95% CI; middle RHGS: 1.21 OR, 1.12–1.31 95% CI vs. strong RHGS).
[Conclusion]
A higher BMI was associated with the prevalence of hypertension in the elderly Korean population. In addition, a lower RHGS was associated with the prevalence of hypertension in elderly Korean men.
Key Words: hypertension, obesity, body mass index, relative handgrip strength, elderly, Korean national fitness assessment
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