Bonnet M H, Arand D L
Dayton Department of Veterans Affairs Medical Center, Wright State University, and Kettering Medical Center, OH 45428, USA.
Sleep. 2000 Mar 15;23(2):205-12.
It has recently been shown that physiological arousal following walking increased sleep latencies during daytime naps as compared to sleep latencies following TV viewing. Patients with insomnia have been shown to have increased physiological arousal and to also have longer MSLT latencies. It was hypothesized that insomnia patients, who are at a higher state of physiological arousal, would be unable to relax while lying in bed and watching TV and therefore would have relatively longer sleep latencies in naps following TV watching (due to inability to relax) as compared to walking.
Twelve patients with psychophysiological insomnia took Multiple Sleep Latency Tests after either watching television for 15 minutes or after a 5-minute walk following baseline, sleep deprivation, and recovery sleep conditions.
Sleep Laboratory
Twelve patients with psychophysiological insomnia
Manipulation of state arousal and sleep deprivation
Sleep latencies were significantly longer following the walk as compared to watching TV (11.9 vs. 6.9 min. respectively). Sleep latencies were 13.4 and 3.8 min. following baseline and sleep deprivation conditions. Heart period, used as a measure of physiological arousal, was significantly elevated throughout naps following the walk as compared to naps following TV viewing. Heart period was also significantly correlated with nap sleep latency.
The insomnia patients in this study had significantly increased arousal, as measured by heart rate, and significantly longer sleep latencies after walking as compared to resting. The magnitude of these changes was similar to that seen in normal subjects in a previous study. These data, in concert with previous work, support the contention that measured sleep tendency is a combination of sleep drive and level of central nervous system arousal, where arousal has both state and trait components.
最近有研究表明，与看电视后的睡眠潜伏期相比，步行后的生理唤醒会增加白天小睡时的睡眠潜伏期。失眠患者已被证明生理唤醒增加，且平均睡眠潜伏期试验（MSLT）潜伏期也更长。据推测，处于较高生理唤醒状态的失眠患者，躺在床上看电视时无法放松，因此与步行后相比，看电视后小睡的睡眠潜伏期会相对更长（由于无法放松）。
12名心理生理性失眠患者在基线、睡眠剥夺和恢复睡眠条件下，分别在观看15分钟电视或进行5分钟步行后进行多次睡眠潜伏期测试。
睡眠实验室
12名心理生理性失眠患者
状态唤醒和睡眠剥夺的操控
与看电视相比，步行后的睡眠潜伏期明显更长（分别为11.9分钟和6.9分钟）。基线和睡眠剥夺条件下的睡眠潜伏期分别为13.4分钟和3.8分钟。用作生理唤醒指标的心动周期，与看电视后的小睡相比，步行后的小睡全程均显著升高。心动周期也与小睡睡眠潜伏期显著相关。
本研究中的失眠患者，以心率衡量的唤醒显著增加，与休息相比，步行后的睡眠潜伏期显著更长。这些变化的幅度与先前研究中正常受试者的情况相似。这些数据与先前的研究结果一致，支持了这样的观点，即测量到的睡眠倾向是睡眠驱动力和中枢神经系统唤醒水平的综合结果，其中唤醒具有状态和特质成分。
