Exploring the Daily Activities Associated with Delayed Bedtime of Japanese University Students

DOI Web Site 被引用文献4件 参考文献41件
  • Asaoka Shoichi
    Faculty of Symbiotic Systems Science, Fukushima University Faculty of Sport Sciences, Waseda University Department of Somnology, Tokyo Medical University Japan Somnology Center, Neuropsychiatric Research Institute
  • Komada Yoko
    Department of Somnology, Tokyo Medical University Japan Somnology Center, Neuropsychiatric Research Institute
  • Fukuda Kazuhiko
    Faculty of Symbiotic Systems Science, Fukushima University
  • Sugiura Tatsuki
    Department of Somnology, Tokyo Medical University Japan Somnology Center, Neuropsychiatric Research Institute
  • Inoue Yuichi
    Department of Somnology, Tokyo Medical University Japan Somnology Center, Neuropsychiatric Research Institute
  • Yamazaki Katuo
    Faculty of Sport Sciences, Waseda University

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University students show delayed sleep-wake patterns, i.e., later bed- and rise-times, and this pattern is known to be associated with various malfunctions. There may be a variety of daily activities associated with their delayed sleep patterns, such as watching TV. However, it is unclear to what extent each activity possesses an impact on their sleep patterns. The purpose of this study was to determine the daily activities associated with delayed bedtime in Japanese university students who live with or without their families. Three hundred and thirty-one participants were required to record the timing and duration of their sleep and daily activities, and the data from the 275 students (160 men and 115 women; 19.01 ± 1.66 years) who completely filled forms were used for analysis. The results of multiple regression analyses suggested that interpersonal communication late at night is one of the major factors leading to the delayed bedtime of students living away from home. Among those living with their families, indoor activities such as watching TV and using the Internet were related to their delayed bedtimes. Attending classes and having a morning meal were related to the earlier bedtimes of the students living away from home, but there were no activities associated with those of the students living with their families. These results suggest that ensuring attendance at morning classes and having appropriate mealtimes, as well as restricting the use of visual media and socializing activities at night, are necessary for preventing late bedtimes in university students.

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