Hong Seungyoun
Department of Senior Industry, Kangnam University, Yongin, Korea.
J Obes Metab Syndr. 2019 Mar;28(1):53-60. doi: 10.7570/jomes.2019.28.1.53. Epub 2019 Mar 30.
The prevalence of metabolic syndrome (MetS) is rapidly increasing with advanced age. Since aging affects sarcopenia and muscle strength, which could, in turns, affect MetS, it is critical to examine the association between MetS and muscle strength in this population. Handgrip strength (HGS) has been introduced as a simple assessment tool for muscular strength. Several studies investigating the association between HGS and the risk of MetS have yield conflicting results. Therefore, this study aimed to investigate the association of MetS and relative handgrip strength (RHGS) in elderly Koreans.
A total of 1,244 (male, 589; female, 655) elderly subjects (age ≥65 years), who participated in the Seventh Korea National Health and Nutrition Examination Survey VII-1 (2016) were analyzed. Participant's HGS, body mass index (BMI), MetS, and its five criteria were measured. Subjects were categorized into four groups based on their RHGS, which was defined as absolute HGS divided by BMI.
The highest quartile RHGS group has a significantly lower prevalence of MetS in both men and women (F=35.16, <0.001 vs. F=31.78, <0.001, respectively). Moreover, the odds ratio of MetS was 0.52 times lower (0.52; 95% confidence interval [CI], 0.31-0.85) in the third quartile RHGS than that of the lowest RHGS, and 0.28 times lower (0.28; 95% CI, 0.17-0.47) in the highest RHGS group in women than that of the lowest RHGS group.
Maintaining a high level of HGS may reduce the incidence rate of MetS in elderly Koreans.
随着年龄增长，代谢综合征（MetS）的患病率迅速上升。由于衰老会影响肌肉减少症和肌肉力量，而这又可能反过来影响代谢综合征，因此在这一人群中研究代谢综合征与肌肉力量之间的关联至关重要。握力（HGS）已被用作肌肉力量的一种简单评估工具。几项研究调查握力与代谢综合征风险之间的关联，结果相互矛盾。因此，本研究旨在调查韩国老年人中代谢综合征与相对握力（RHGS）之间的关联。
对参加第七次韩国国家健康与营养检查调查VII - 1（2016年）的1244名（男性589名；女性655名）年龄≥65岁的老年人进行分析。测量参与者的握力、体重指数（BMI）、代谢综合征及其五项标准。根据相对握力将受试者分为四组，相对握力定义为绝对握力除以体重指数。
在男性和女性中，相对握力最高四分位组的代谢综合征患病率均显著较低（分别为F = 35.16，<0.001和F = 31.78，<0.001）。此外，在女性中，相对握力第三四分位组的代谢综合征比值比比最低相对握力组低0.52倍（0.52；95%置信区间[CI]，0.31 - 0.85），最高相对握力组比最低相对握力组低0.28倍（0.28；95% CI，0.17 - 0.47）。
保持高水平的握力可能会降低韩国老年人代谢综合征的发病率。
