Relation between Subjective Sleep and Daily rhythms among Elderly Living at Home

本研究的目的是用客观指标来阐明主观睡眠感觉差的老年人的生活节奏和日常生活习惯。本研究以居住在A、B都道府县C市、D市的65岁以上的男性和女性为研究对象，通过问卷调查进行访谈，并使用活动记录仪（Mini-motion-logger Actigraph，A.M.I.）出于伦理考虑，以书面形式解释了以下内容：研究目的和方法;参与是自愿的，受试者可以随时退出研究;将保持匿名和保密;佩戴Actigraph不会对身体造成伤害;即使佩戴Actigraph，受试者也可以继续正常的日常活动。结果显示，在一些主观睡眠感觉不佳的老年人中，活动记录仪的记录显示了他们活跃地度过一天的日常生活节奏，白天没有静止期。相反，也有老年人主观睡眠感觉良好，但白天活动不多，昼夜节律不规则。此外，在活动记录仪记录中，有一些老年人的主观睡眠感觉较差，日常生活节奏不规则。观察到主观评价和客观指标在不良睡眠和活动方面一致的病例。

The purpose of this study was to clarify, using objective indicators, the life rhythms and daily living habits of elderly people who have a poor subjective sense of sleep. The relationship between subjective sense of sleep and the objective indicators was also clarified.The subjects of the study were men and women 65 years of age or older who lived in cities C and D in prefectures A and B.The study methods were an interview survey by questionnaire, and measurement of life rhythms using an Actigraph (Mini-motion-logger Actigraph, A.M.I.) worn by the participants.For ethical considerations, the following was explained in writing: The study aims and methods; that participation was voluntary and subjects could withdraw from the study at any time; that anonymity and confidentiality would be maintained ; that wearing the Actigraph was not physically invasive ; and that subjects could continue their normal daily activities even while wearing the Actigraph. The study was conducted after obtaining participants' consent.The results showed that in some elderly participants who had a poor subjective sense of sleep, the Actigraph recordings indicated daily life rhythms in which they passed their days actively, without periods of quiescence during the day. Conversely, there were also elderly whose subjective sense of sleep was good, but who did not show much activity during the day and whose daily rhythms were irregular. In addition, there were some elderly with poor subjective sense of sleep and irregular daily living rhythms in their Actigraph recordings. Cases were seen in which subjective evaluation and objective indicators were in agreement on points of unfavorable sleep and activity.