Forner-Cordero Arturo, Umemura Guilherme Silva, Furtado Fabianne, Gonçalves Bruno da Silva Brandão
University of São Paulo, Biomechatronics Lab. (EPUSP) - São Paulo - SP - Brazil.
Federal Institute of Education, Science and Technology of Southeast of Minas Gerais, Physical Therapy - Barbacena - MG - Brazil.
Sleep Sci. 2018 May-Jun;11(3):141-145. doi: 10.5935/1984-0063.20180027.
Sleep quality analysis is crucial for human health and it is related to duration, rhythm and quality. The goal of this study is to analyze objective assessment of the sleep-wake cycles with actigraphy, subjective questionnaires and their relationship with sleep quality indices. A wearable actigraph registered the sleep habits of 41 healthy subjects for 9 days. Afterwards, the subjects filled two questionnaires about sleep quality (Pittsburgh Sleep Quality Index) and sleepiness (Epworth Sleepiness Scale). The subjects were divided into two groups based on cut-off scores and the actigraphy parameters were compared between groups. Group 1 in ESS and PSQI categorization had less diurnal sleepiness and better sleep quality, respectively, than Group 2. Measurements of regularity (IS), fragmentation (IV), active phase amplitude (M10), rest amplitude (L5), and relative amplitude (RA) were compared between groups. Group 2 had higher L5 values. Parameter L5 (lowest of 5 consecutive hours of activity) was concluded to be relevant to identify the sleep conditions of the subjects.
睡眠质量分析对人类健康至关重要，它与睡眠时间、节律和质量相关。本研究的目的是通过活动记录仪、主观问卷对睡眠 - 清醒周期进行客观评估，并分析它们与睡眠质量指标的关系。一个可穿戴的活动记录仪记录了41名健康受试者9天的睡眠习惯。之后，受试者填写了两份关于睡眠质量（匹兹堡睡眠质量指数）和嗜睡程度（爱泼华嗜睡量表）的问卷。根据临界分数将受试者分为两组，并比较两组之间的活动记录仪参数。在爱泼华嗜睡量表（ESS）和匹兹堡睡眠质量指数（PSQI）分类中，第1组分别比第2组有更少的日间嗜睡和更好的睡眠质量。比较了两组之间的规律性（IS）、片段化（IV）、活跃期振幅（M10）、静息振幅（L5）和相对振幅（RA）测量值。第2组的L5值更高。得出结论，参数L5（连续5小时活动中的最低值）与识别受试者的睡眠状况相关。
