The Impact of Physical Activity on Sleep Quality
Background: Physical activity participation is known to be beneficial to both objective and subjective sleep. However, the benefits may depend upon the amount of time engaged in physical activity. Purpose: This study aimed to investigate the impact of different durations of physical activity (PA) participation on the quality of sleep among 100 college students. It was hypothesized that greater levels of moderate-to-vigorous physical activity (MVPA) would increase sleep efficiency and total sleep time (TST).
Methods: 100 students who were recruited from Fudan University voluntarily participated in the study. Students’ PA and sleep data were objectively collected through the ActiGraph Activity Monitor (wBT3x-BT) which each participant wore for 7 consecutive days. To investigate the relationships between levels of physical activity participation and quality of sleep, data were analyzed by means of descriptive statistics, an independent t-test, bivariate correlation, and multiple R-squared linear regression.
Results: The independent t-test indicated that Group 1 (n = 59) (x̅ = 34.496 min. MVPA per day) exhibited significantly higher levels of sleep efficiency and total sleep time than did Group 2 (n = 41) (x̅ = 70.826 min. MVPA per day) (t = 4.064, p < .01; t = 4.074, p < .01). Furthermore, the results of the multiple linear regression indicated that sleep efficiency and total sleep time were significantly associated with daily MVPA (F = 23.104, p < .01)
Conclusion: The results rejected our hypothesis. 60 minutes or more of MVPA per day resulted in lower sleep efficiency and less total sleep time. Therefore, moderate levels (<60 min. MVPA per day) should be carried out for optimal sleep quality.
UROP student: Cassidy Haase