Body movements during night sleep and their relationship with sleep stages are further modified in very old subjects
Body movements during night sleep and their relationship with sleep stages are further modified in very old subjects
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DOI：
10.1016/j.brainresbull.2007.07.022
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发表时间：
2008-01-31
影响因子：
3.8
通讯作者：
Salzarulo, Piero
中科院分区：
文献类型：
--
作者：
Giganti, Fiorenza;Ficca, Gianluca;Salzarulo, Piero
对12名76-98岁健康受试者的夜间睡眠进行了多导睡眠调查，以分析身体动作及其与高龄睡眠阶段的关联;将该组与61-75岁的健康老年受试者进行比较。与年龄较小的受试者相比，高龄受试者的睡眠较少受到身体动作的干扰，身体动作与每个睡眠阶段的关联进一步改变。短持续的运动在第1阶段、第2阶段和REM睡眠中出现的频率很低，但在SWS中出现的频率明显较低。此外，老年人在身体活动后醒来的概率比老年人高，这表明睡眠比以前的年龄更容易受到身体活动的影响。老年人难以保持稳定的状态，表明老年人无法维持和协调稳定的生理活动。此外，许多觉醒的存在，而不是之前的运动，支持的假设，在非常老的人的觉醒可能是一个突然的事件，应该由其他行为和生理活动的研究证实觉醒之前。(C)2007年爱思唯尔公司All rights reserved.
The night sleep of 12 healthy subjects aged 76-98 was polygraphically investigated in order to analyse body movements and their association with sleep stages at very old age; this group was compared with I I healthy old subjects aged 61-75 years.In very old subjects sleep is less punctuated by body movements and the association of body movements with each sleep stage is further modified compared to less old subjects. Short-lasting movements emerge indifferently from stage 1, stage 2 and REM sleep, but are significantly less frequent in SWS. Furthermore, in very old subjects the probability of awakening after body movements is higher than in old subjects, suggesting that sleep is more vulnerable to the occurrence of body movements than at previous ages.The difficulty in the elderly to maintain a stable state expresses the inability to sustain and coordinate stable physiological activities characteristic of the old age. In addition, the presence of numerous awakenings, not preceded by movements, supports the hypothesis that the awakening in the very old people may be a sudden event, as should be confirmed by the study of other behavioural and physiological activities preceding awakening. (C) 2007 Elsevier Inc. All rights reserved.