Tolerance of Chronic 90-Minute Time-In-Bed Restriction in Older Long Sleepers
Tolerance of Chronic 90-Minute Time-In-Bed Restriction in Older Long Sleepers
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DOI：
10.1093/sleep/32.11.1467
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发表时间：
2009-11-01
期刊：
影响因子：
5.6
通讯作者：
Hardin, James W.
中科院分区：
文献类型：
--
作者：
Youngstedt, Shawn D.;Kline, Christopher E.;Hardin, James W.
研究目的：探讨长期卧床时间 (TIB) 限制对老年长期睡眠者选定的健康相关结果变量的影响。设计：随机对照试验。环境：在家。参与者：42 名报告睡眠时间至少 8.5 小时的老年人（50-70 岁）。经过广泛的筛选后，参与者接受了为期 10 周的评估。 干预：在两周的基线期间，参与者遵循他们通常的睡眠-觉醒习惯。然后，参与者被随机接受两种为期八周的治疗中的一种：(1) TIB 限制，其中参与者被要求遵循固定睡眠时间表，TIB 比基线期间记录的时间少 90 分钟，或 (2) 对照治疗，其中涉及遵循固定睡眠时间表（与平均基线一致），但没有 TIB 限制。测量和结果：连续腕部活动记录睡眠评估表明，与对照治疗相比，TIB 限制导致 TIB 和总睡眠时间显着减少，并且显着（尽管适度）睡眠效率和睡眠潜伏期的改善。然而，与对照治疗相比，TIB 限制并未引起抑郁、嗜睡、健康相关生活质量或神经行为表现的显着变化。此外，一年的跟踪评估表明，在完成实验后，被分配进行 TIB 限制的参与者继续限制他们的 TIB（主动）平均大约一小时。结论：结果表明，老年长期睡眠者对慢性中度 TIB 限制有良好的耐受性，没有有害影响。
Study Objectives: To examine the influence of chronic time-in-bed (TIB) restriction on selected health-related outcome variables in older long sleepers.Design: Randomized, controlled trial.Setting: Home-based.Participants: Forty-two older adults (aged 50-70 y) who reported sleeping at least 8.5 hours. Following extensive screening, participants were assessed for 10 weeks.Intervention: During a two-week baseline, participants followed their usual sleep-wake habits. Participants were then randomized to one of two eight-week treatments: (1) TIB restriction, in which participants were asked to follow a fixed sleep schedule with a TIB of 90 minutes less than recorded during baseline or (2) a control treatment, which involved following a fixed sleep schedule (consistent with average baseline) but no TIB restriction.Measurements and Results: Continuous wrist actigraphic sleep estimation indicated that TIB restriction elicited significant reductions in TIB and total sleep time compared with the control treatment and significant (albeit modest) improvements in sleep efficiency and sleep latency. However, compared with the control treatment, TIB restriction elicited no significant change in depression, sleepiness, health-related quality of life, or neuro-behavioral performance. Moreover, follow-up assessments for one year indicated that, after completing the experiment, the participants assigned to TIB restriction continued to restrict their TIB (at their own initiative) by an average of approximately one hour.Conclusions: The results suggest good tolerance of chronic moderate TIB restriction, without detrimental effects, among older long sleepers.