The Effect of Acute Sleep Extension on Blood Pressure Is Dependent on the Change in Sleep Efficiency.

IF 2.1 Q3 CLINICAL NEUROLOGY
Joaquin U Gonzales, Cayla Clark, Jacob R Dellinger
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Abstract

The present study investigated the effect of acute sleep extension on blood pressure and microvascular vasodilation. Sleep and daily physical activity were objectively measured at home for two weeks using wrist actigraphy in 22 adults (60 ± 15 y). Vascular measurements were made in the morning on the 8th and 15th day. Participants spent at least 10 h in bed on the night prior to one of these testing days to extend sleep. Mean arterial blood pressure (MAP) and peak reactive hyperemia in the forearm were measured on each testing day. Reactive hyperemia and MAP were unaltered (p > 0.05) by sleep extension in the total sample. However, adults who experienced improved sleep efficiency with sleep extension (n = 10, 4.2 ± 1.4%) exhibited reduced MAP (-5.5 ± 4.6 mm Hg, p = 0.005) while adults who had little change or decreased sleep efficiency (n = 12, -1.7 ± 2.9%) showed no change in MAP. The reduction in MAP was significantly different between sleep efficiency groups (p = 0.005, Hedges' g = 1.21) after adjustment for sex and moderate-to-vigorous physical activity. The results of this study suggest that sleep extension has the potential to reduce blood pressure in midlife to older adults when the additional sleep time improves the quality of sleep.

延长急性睡眠时间对血压的影响取决于睡眠效率的变化。
本研究调查了急性睡眠延长对血压和微血管扩张的影响。22名成年人(60±15岁)连续两周在家中使用腕动计对睡眠和日常体力活动进行了客观测量。血管测量在第 8 天和第 15 天的早晨进行。在其中一个测试日的前一天晚上,参与者至少在床上躺了 10 小时,以延长睡眠时间。在每个测试日测量前臂的平均动脉血压(MAP)和反应性充血峰值。在所有样本中,反应性充血和 MAP 均未因延长睡眠时间而发生变化(P > 0.05)。然而,通过延长睡眠时间提高了睡眠效率的成年人(n = 10,4.2 ± 1.4%)的血压有所下降(-5.5 ± 4.6 mm Hg,p = 0.005),而睡眠效率几乎没有变化或有所下降的成年人(n = 12,-1.7 ± 2.9%)的血压没有变化。在对性别和中度至剧烈运动进行调整后,不同睡眠效率组之间的 MAP 下降率存在明显差异(p = 0.005,Hedges' g = 1.21)。这项研究的结果表明,如果额外的睡眠时间能提高睡眠质量,延长睡眠时间有可能降低中老年人的血压。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Clocks & Sleep
Clocks & Sleep Multiple-
CiteScore
4.40
自引率
0.00%
发文量
0
审稿时长
7 weeks
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