Periodic leg movements during sleep and sleep disturbances in elders.
Periodic leg movements during sleep and sleep disturbances in elders.
复制标题
老年人睡眠时周期性腿部运动和睡眠障碍。
DOI:
10.1093/gerona/53a.5.m391
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发表时间:
1998
期刊:
影响因子:
--
通讯作者:
Mason,WJ
中科院分区:
文献类型:
--
作者:
Youngstedt,SD;Kripke,DF;Klauber,MR;Sepulveda,RS;Mason,WJ
Background.Periodic limb movements in sleep (PLMS) are an increasingly pervasive disturbance for aging adults. The aims of this experiment were: (a) to describe the index of periodic limb movements in sleep (myoclonus index [MI] in elderly subjects with complaints of poor sleep or depression (N= 22; 68 ± 5.5SDyears); and (b) to correlate MI with sleep history, depression scores, and objective and subjective indices of sleep.Method.Sleep and leg movements were assessed for 5 consecutive nights. Between-subjects, nonparametric correlations were examined between mean MI and sleep history, depression scores, and objective and subjective sleep characteristics. Associations among within-subject night-to-night variabilities of MI, objective, and subjective variables were examined with repeated measures ANCOVA, entering MI as a covariate.Results.A remarkably high level of MI was found (median 25.8 events per hour; 86% of subjects > 5). Nevertheless, no associations were found between MI and sleep disturbance measures.Conclusion.These results extend previous reports that PLMS are remarkably persuasive in elderly volunteers and support other reports questioning whether there is a distinct PLMS syndrome.