Abstract
Purpose
This study investigated the optimal total sleep duration per day required by collegiate athletes to maintain the physical and mental health-related quality of life (HRQOL), compared with non-athlete students.
Methods
In this cross-sectional study, a questionnaire survey was conducted to assess demographic variables, lifestyle and sleep habits, and HRQOL in 392 collegiate students (non-athletes, n = 174; athletes, n = 218). Physical component summary (PCS) and mental component summary (MCS) were assessed using the short-form-8 health survey. Participants with both good PCS and MCS were defined as having a good HRQOL. To confirm an association between the total sleep duration per day and good HRQOL, logistic regression analyses were conducted in non-athlete students and collegiate athletes separately. Subsequently, receiver-operating curve (ROC) analyses were performed for the detection of the cut-off point of total sleep duration per day sufficient to maintain a good HRQOL.
Results
The average total sleep duration per day was 7 h 19 min for collegiate athletes, and 78.9% of them had a worse PCS. The cut-off point of total sleep duration per day to maintain good HRQOL for collegiate athletes was 7.92 h (area under ROC, 0.64; P = 0.038; sensitivity, 75.4%; specificity, 57.9%), which was longer than 6.79 h for non-athlete students.
Conclusion
Collegiate athletes required longer nocturnal sleep than non-athlete students. Nevertheless, their habitual nocturnal sleep duration was shorter compared to their optimal duration; around 70% of them faced chronic insufficient sleep. Improving sleep habits and sleep education is important in maintaining their good health-related quality of life.
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Availability of Data and Materials
The data of this study are not publicly available and are protected by the Ethics Committee of the Tokyo Medical University for the current study.
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Funding
This work was supported by a Ministry of Education, Culture, Sports, Science and Technology (MEXT) KAKENHI Grant-in-Aid for Young Scientists (B), No. 16K16608. No industrial support is declared.
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YM designed the study, and contributed to data collection and data analysis. TSS designed the study, and contributed to data analysis and interpretation of results. All authors contributed to writing of the manuscript read and approved the final version of the manuscript, and agreed with the order of presentation of the authors.
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This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of the Tokyo Medical University (No. 3148).
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Morita, Y., Sasai-Sakuma, T. Optimal Total Sleep Duration per Day to Maintain Health-Related Quality of Life in Male Collegiate Athletes: A Cross-Sectional Study. J. of SCI. IN SPORT AND EXERCISE 5, 360–368 (2023). https://doi.org/10.1007/s42978-022-00203-y
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DOI: https://doi.org/10.1007/s42978-022-00203-y