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Individual differences in subjective circadian flexibility

机译:主观昼夜节律灵活性的个体差异

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The aim of this study was to evaluate individual differences in the subjective flexibility of the circadian system in a community sample, with respect to age, gender, chronotype, and sleepiness perceptions. An online questionnaire containing the Circadian Type Inventory, the Composite Scale of Morningness, the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale was administered. In addition, participants performed a visuo-verbal judgment task to determine time-of-day variations in estimated sleepiness. We analyzed data of 752 participants, aged between 18 and 83 years, who reported good sleep quality, no sleep disturbances, no excessive daytime sleepiness, and no engagement in shiftwork. Our results suggest gender- and chronotype-related differences in the subjective flexibility of the circadian system. Subjective circadian flexibility was higher in men in comparison with women and was positively related to evening preference. Age was not associated with flexibility scores. Additionally, the subjective flexibility of the circadian system had an influence on estimated sleepiness profiles: individuals with a high flexibility displayed lower sleepiness estimations during the biological night in comparison to individuals with a low flexibility. These findings suggests that, next to known chronotype and other dispositional differences, subjective circadian flexibility should be taken into account when evaluating tolerance to activities associated with nighttime functioning (e.g. night shifts).
机译:本研究的目的是评估社区样本中昼夜节律系统在年龄,性别,表型和嗜睡感方面的个体差异。进行了在线问卷调查,其中包括昼夜节律型库存量,早晨综合量表,匹兹堡睡眠质量指数和爱泼华嗜睡量表。此外,参与者执行了视觉上的口头判断任务,以确定估计的困倦中一天中的时间变化。我们分析了752名年龄在18至83岁之间的参与者的数据,他们报告了良好的睡眠质量,没有睡眠障碍,没有过多的白天嗜睡和没有从事轮班工作。我们的研究结果表明,昼夜节律系统的主观灵活性与性别和表型有关。与女性相比,男性的主观昼夜节律柔韧性更高,并且与夜间偏好呈正相关。年龄与灵活性分数无关。此外,昼夜节律系统的主观灵活性对估计的嗜睡状况有影响:与灵活度较低的个体相比,灵活度较高的个体在生物学夜晚表现出较低的嗜睡估计。这些发现表明,在评估与夜间功能(例如夜班)相关的活动的耐受性时,除了已知的表型和其他性格差异外,还应考虑主观的昼夜节律灵活性。

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