Ishihara K, Miyake S, Miyasita A, Miyata Y
Department of Child Welfare, Notre Dame Seishin University, Okayama, Japan.
Chronobiologia. 1992 Jan-Mar;19(1-2):9-16.
The Japanese version of the morningness-eveningness questionnaire and life habits inventory were administered to approximately 400 workers and the changes in morningness-eveningness scores and sleep-wake habits with aging were investigated. All subjects were divided into four age groups, i.e., 20's, 30's, 40's, and 50 + 60's. Morningness-eveningness scores significantly shifted to morningness preference with increased age. The results of sleep-wake habits showed that 1) there were no age-related changes for habitual sleep parameters (bedtime, arising time, and sleep length), but preferential bed and arising times significantly advanced with aging, 2) the variability of habitual sleep parameters were greater in the young than in the old, especially, on the weekend, and 3) the older the age groups were, the better the mood on arising. These findings suggested that the circadian phase was advanced and/or the period was shortened with increased age.
我们对约400名工人进行了日本版晨型-夜型问卷和生活习惯量表的调查，研究了晨型-夜型得分及睡眠-觉醒习惯随年龄增长的变化。所有受试者分为四个年龄组，即20多岁、30多岁、40多岁和50 + 60多岁。晨型-夜型得分随年龄增长显著向晨型偏好转变。睡眠-觉醒习惯的结果显示：1）习惯性睡眠参数（就寝时间、起床时间和睡眠时间）无年龄相关变化，但偏好的上床和起床时间随年龄增长显著提前；2）年轻人习惯性睡眠参数的变异性大于老年人，尤其是在周末；3）年龄组越大，起床时的情绪越好。这些发现表明，随着年龄增长，昼夜节律相位提前和/或周期缩短。
