Kim Ryoung Hee, Kim Kyong In, Kim Jeong Hyeon, Park Yong Soon
Department of Family Medicine, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Korea.
Korean J Fam Med. 2018 Jul;39(4):219-224. doi: 10.4082/kjfm.17.0030. Epub 2018 Jul 4.
The association between sleep duration and body composition measures in Korean adults remains unclear.
This cross-sectional study included 3,532 subjects aged ≥40 years (1,542 men and 1,990 women) who participated in the 2010 Korea National Health and Nutrition Examination Survey V-1. Self-reported sleep duration and anthropometric data were collected. Appendicular skeletal muscle mass (ASM) was quantified via dual-energy X-ray absorptiometry. Obesity was defined according to the body mass index and waist circumference. Sarcopenia was defined as the muscle mass percentage (ASM/weight) below the lowest quintile computed for the study population. Multivariate logistic regressions with or without adjustment for sociodemographic and lifestyle factors were used to evaluate the association of sleep duration with obesity and sarcopenia for participants who slept ≤5, 6-8, and ≥9 h/d. The results were expressed as odds ratios (ORs) with 95% confidence intervals (95% CIs).
In women, the association between sleep duration and sarcopenia was stronger for individuals who slept ≥9 h/d than for those who slept 6-8 h/d (unadjusted OR, 1.99; 95% CI, 1.19-3.34; adjusted OR, 1.77; 95% CI, 1.06- 2.96).
Longer sleep duration is associated with a significantly higher incidence of sarcopenia in Korean women aged ≥40 years.
韩国成年人的睡眠时间与身体成分指标之间的关联尚不清楚。
这项横断面研究纳入了3532名年龄≥40岁的受试者（1542名男性和1990名女性），他们参加了2010年韩国国家健康与营养检查调查V-1。收集了自我报告的睡眠时间和人体测量数据。通过双能X线吸收法对四肢骨骼肌质量（ASM）进行量化。根据体重指数和腰围定义肥胖。肌肉减少症定义为肌肉质量百分比（ASM/体重）低于研究人群计算出的最低五分位数。对于每天睡眠时间≤5小时、6-8小时和≥9小时的参与者，使用多变量逻辑回归分析，无论是否调整社会人口学和生活方式因素，来评估睡眠时间与肥胖和肌肉减少症之间的关联。结果以比值比（OR）和95%置信区间（95%CI）表示。
在女性中，每天睡眠时间≥9小时的个体，其睡眠时间与肌肉减少症之间的关联比每天睡眠时间为6-8小时的个体更强（未调整的OR为1.99；95%CI为1.19-3.34；调整后的OR为1.77；95%CI为1.06-2.96）。
在年龄≥40岁的韩国女性中，较长的睡眠时间与肌肉减少症的发生率显著较高相关。
