Van Deun D, Verhaert V, Willemen T, Wuyts J, Verbraecken J, Exadaktylos V, Haex B, Vander Sloten J
Biomechanics section, Katholieke Universiteit Leuven, Celestijnenlaan 300c, bus 2419, 3001 Leuven, Belgium.
Work. 2012;41 Suppl 1:1274-80. doi: 10.3233/WOR-2012-0313-1274.
Proper body support plays an import role in the recuperation of our body during sleep. Therefore, this study uses an automatically adapting bedding system that optimises spinal alignment throughout the night by altering the stiffness of eight comfort zones. The aim is to investigate the influence of such a dynamic sleep environment on objective and subjective sleep parameters. The bedding system contains 165 sensors that measure mattress indentation. It also includes eight actuators that control the comfort zones. Based on the measured mattress indentation, body movements and posture changes are detected. Control of spinal alignment is established by fitting personalized human models in the measured indentation. A total of 11 normal sleepers participated in this study. Sleep experiments were performed in a sleep laboratory where subjects slept three nights: a first night for adaptation, a reference night and an active support night (in counterbalanced order). Polysomnographic measurements were recorded during the nights, combined with questionnaires aiming at assessing subjective information. Subjective information on sleep quality, daytime quality and perceived number of awakenings shows significant improvements during the active support (ACS) night. Objective results showed a trend towards increased slow wave sleep. On the other hand, it was noticed that % N1-sleep was significantly increased during ACS night, while % N2-sleep was significantly decreased. No prolonged N1 periods were found during or immediately after steering.
合适的身体支撑在我们睡眠期间身体恢复过程中起着重要作用。因此，本研究使用一种自动适应的床上用品系统，该系统通过改变八个舒适区的硬度来优化整个夜间的脊柱排列。目的是研究这种动态睡眠环境对客观和主观睡眠参数的影响。该床上用品系统包含165个测量床垫凹陷的传感器。它还包括八个控制舒适区的致动器。基于测量的床垫凹陷，检测身体运动和姿势变化。通过在测量的凹陷中拟合个性化人体模型来实现脊柱排列的控制。共有11名正常睡眠者参与了本研究。睡眠实验在睡眠实验室进行，受试者在那里睡三个晚上：第一个晚上用于适应，一个参考晚上和一个主动支撑晚上（以平衡顺序）。在夜间记录多导睡眠图测量数据，并结合旨在评估主观信息的问卷。关于睡眠质量、白天质量和感知觉醒次数的主观信息在主动支撑（ACS）晚上显示出显著改善。客观结果显示慢波睡眠有增加的趋势。另一方面，注意到在ACS晚上N1睡眠百分比显著增加，而N2睡眠百分比显著下降。在转向期间或之后立即未发现延长的N1期。
