Korean J Fam Pract.  2020 Jul;10(4):298-306. 10.21215/kjfp.2020.10.4.298.

Association of Sleep Duration with Hand Grip Strength in Adults: Korea National Health and Nutrition Examination Survey (2014–2017)

• Kim WJ
• Choi JK
• Kwon HJ
• Shin JY
• Oh EJ
• Kim KJ

• KMID: 2505332
• DOI: http://doi.org/10.21215/kjfp.2020.10.4.298

Abstract

Background
Hand grip strength (HGS) is used clinically with regards to rehabilitation and recommended as a basic measure in determiningmusculoskeletal function, weakness, and disability. The purpose of this study was to examine the relationship between sleep duration and musclestrength in Korean adults.
Methods
The Korea National Health and Nutrition Examination Survey (KNHANES) is a cohort survey investigating the health behavior, chronic diseaseprevalence, and food and nutrition intake statuses of the Korean population. We analyzed the association between sleep duration and hand gripstrength by performing a logistic regression analysis on KNHANES data from 2014 to 2017. All statistical analyses were performed with SPSS and Rtools.
Results
Among the 20,933 participants, compared to the group of patients who slept less than 5 hours a day, the group of patients who slept 6–7hours had higher HGS, whereas the group of patients who slept more than 9 hours had weaker HGS. This trend was more apparent in the elderlypopulation.
Conclusion
This study of the adult population of South Korea suggests that sleeping for approximately 6 to 7 h a day increases muscle strength andgeneral well-being, whereas extreme sleep durations, such as less than 5 h or more than 9 h, result in weaker muscle strength, in general.

Keyword

Hand Grip Strength; Sleep Duration; Korea National Health and Nutrition Examination Survey