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Article

Relationships between College Students’ Sedentary Behavior, Sleep Quality, and Body Mass Index

1
College of Kinesiology and Health Science, Huaihua University, Huaihua 418008, China
2
School of Kinesiology, University of Minnesota Twin Cities, Minneapolis, MN 55414, USA
3
Health Sciences Center, University of New Mexico, Albuquerque, NM 87106, USA
*
Authors to whom correspondence should be addressed.
Academic Editor: Paul Tchounwou
Int. J. Environ. Res. Public Health 2021, 18(8), 3946; https://doi.org/10.3390/ijerph18083946
Received: 8 February 2021 / Revised: 6 April 2021 / Accepted: 7 April 2021 / Published: 9 April 2021
(This article belongs to the Section Health Behavior, Chronic Disease and Health Promotion)
Purpose: Sedentary behavior (SB), sleep efficiency (SE), sleep duration (SD), and body mass index (BMI) are crucial determinants of an individual’s health. However, empirical evidence regarding associations between these factors in young adults living in China remains unknown. Therefore, the purpose of this study was to examine the relationships between accelerometer-measured SB, SE, SD, and BMI in Chinese college students. Methods: Two-hundred and twenty college students (115 females, Meanage = 20.29 years, SD = 2.37) were recruited from a south-central Chinese university. Participants’ SB (daily % time spent in SB), SE (number of minutes of sleep duration/number of minutes in bed), and SD were assessed via wrist-worn ActiGraph GT9X Link accelerometers for one week. Body weight was measured using a digital weight scale, height was measured using a stadiometer, and BMI was calculated as weight (kg)/height (m2). Results: Participants’ average time spent in SB was 76.52% (SD = 10.03), SE was 84.12% (SD = 4.79), and BMI was 20.67 kg/m2 (SD = 3.12), respectively. Regression analyses indicated that SB (β = −0.17, p = 0.01) and BMI (β = −0.20, p < 0.01) negatively predicted SE. In addition, BMI negatively predicted SD (β = −0.22, p < 0.01). Conclusion: Prolonged SB (e.g., screen viewing, smartphone use, and computer playing) and higher BMI may link to shorter sleep duration and lower sleep efficiency in Chinese young adults. Future randomized controlled trials are needed to further confirm these findings. Given that increased BMI status and SB may relate to adverse health outcomes, more population-based intervention strategies seeking to lower BMI and reduce SB (e.g., nutrition education and physical activity promotion) are needed in this population. View Full-Text
Keywords: accelerometer; sedentary behavior; sleep; body mass index accelerometer; sedentary behavior; sleep; body mass index
MDPI and ACS Style

Liu, W.; Yuan, Q.; Zeng, N.; McDonough, D.J.; Tao, K.; Peng, Q.; Gao, Z. Relationships between College Students’ Sedentary Behavior, Sleep Quality, and Body Mass Index. Int. J. Environ. Res. Public Health 2021, 18, 3946. https://doi.org/10.3390/ijerph18083946

AMA Style

Liu W, Yuan Q, Zeng N, McDonough DJ, Tao K, Peng Q, Gao Z. Relationships between College Students’ Sedentary Behavior, Sleep Quality, and Body Mass Index. International Journal of Environmental Research and Public Health. 2021; 18(8):3946. https://doi.org/10.3390/ijerph18083946

Chicago/Turabian Style

Liu, Wenxi, Qin Yuan, Nan Zeng, Daniel J. McDonough, Kun Tao, Qingwen Peng, and Zan Gao. 2021. "Relationships between College Students’ Sedentary Behavior, Sleep Quality, and Body Mass Index" International Journal of Environmental Research and Public Health 18, no. 8: 3946. https://doi.org/10.3390/ijerph18083946

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