Effect of sleep duration on muscle mass in Korean non-elderly adults
Ji H. Moon 1 2, Mi H. Kong 1 3, Yun H. Oh 1 2, Hyeon J. Kim 1 3 *
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1 Department of Family Medicine, Jeju National University Hospital, Jeju, Republic of Korea
2 Graduate School of Jeju National University, Jeju, Republic of Korea
3 Department of Family Medicine, School of Medicine, Jeju National University, Jeju, Republic of Korea
* Corresponding Author


This study investigated the association of sleep duration and muscle mass in non-elderly adults.

The present study analyzed young (19-39 years) and middle-aged (40-59 years) men and women who participated in the Korea National Health and Nutrition Examination Survey. Muscle mass was measured using dual energy X-ray absorptiometry scan. A self-reported questionnaire was used for assessing sleep duration, which was categorized into ≤ 6, 7, 8, and ≥ 9 h per day.

Participants with low muscle mass were more prevalent in the longer sleep group, among men and women. Furthermore, in subgroup analysis, in which participants were classified into a young and middle-aged group, height-adjusted appendicular skeletal muscle mass was inversely related to sleep duration, regardless of sex. After adjusting for covariates, the probability of low muscle mass was increased in longer sleepers, and sleep duration and low muscle mass showed a positive dose-dependent correlation in men and women.

In young and middle-aged adults, longer sleep duration may be related to decreased muscle mass, in both sexes.


This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Original Article


ELECTRON J GEN MED, 2018 - Volume 15 Issue 2, Article No: em03

Publication date: 10 Jan 2018

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Article Downloads: 796

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