Umemura G S, Noriega C L, Soares D F, Forner-Cordero A
Annu Int Conf IEEE Eng Med Biol Soc. 2017 Jul;2017:1397-1400. doi: 10.1109/EMBC.2017.8037094.
The analysis of sleep quality during long periods and its impact on motor control and learning performance are crucial aspects for human health. The aim of this study is to analyze effects of chronic sleep restriction on motor performance. It is intended to establish motor control indicators in sleep quality analysis. A wearable actigraphy that records accelerometry, ambient light, and body temperature was used to monitor the sleep habits of 12 healthy subjects for two weeks before performing motor control and learning tests. The day of the motor test, the subjects filled two questionnaires about the quality of sleep (Pittsburgh Sleep Quality Index - PSQI) and sleepiness (Epworth Sleepiness Scale - ESS). Afterwards they performed a coincident timing task that consisted of hitting a virtual target falling on the screen with the hand. An elbow flexion in the horizontal plane had to be performed on the correct time to reach the real target on a table at the same time as the virtual target on the screen. The subjects performed three sets of acquisition and transfer blocks of the coincident timing task. The subjects were clustered in two groups based on the PSQI and ESS scores. Actigraphy and motor control parameters (L5, correct responses, time variance) were compared between groups and experimental sets. The group with better sleep parameters did show a constant performance across blocks of task acquisition while the bad sleeper group improved from the first to the second acquisition block. Despite of this improvement, their performance is not better than the one of the good sleepers group. Although the number of subjects is low and it should be increased, these results indicate that the subjects with better sleep converged rapidly to a high level of performance, while the worse sleepers needed more trials to learn the task and their performance was not superior to the other group.
长时间睡眠质量的分析及其对运动控制和学习表现的影响是人类健康的关键方面。本研究的目的是分析慢性睡眠限制对运动表现的影响。旨在建立睡眠质量分析中的运动控制指标。在进行运动控制和学习测试前两周，使用一种可穿戴的活动记录仪，记录加速度、环境光和体温，以监测12名健康受试者的睡眠习惯。在运动测试当天，受试者填写了两份关于睡眠质量（匹兹堡睡眠质量指数 - PSQI）和嗜睡程度（爱泼华嗜睡量表 - ESS）的问卷。之后，他们执行了一项同步计时任务，即要用手击中屏幕上掉落的虚拟目标。必须在正确的时间进行水平平面的肘部弯曲，以便在屏幕上的虚拟目标同时到达桌子上的真实目标。受试者进行了三组同步计时任务的获取和转移模块。根据PSQI和ESS分数将受试者分为两组。比较了两组和各实验组之间的活动记录仪数据和运动控制参数（L5、正确反应、时间方差）。睡眠参数较好的组在任务获取模块中表现稳定，而睡眠较差的组从第一个获取模块到第二个获取模块有所改善。尽管有这种改善，他们的表现并不比睡眠良好的组更好。虽然受试者数量较少且应该增加，但这些结果表明，睡眠较好的受试者迅速达到了较高的表现水平，而睡眠较差的受试者需要更多试验来学习任务，且他们的表现并不优于另一组。
