Sleep and Functional Neurobiology Laboratory, INTA, University of Chile, Macul 5540, Macul, P.O. Box 138-11, Santiago, Chile.
Aging Clin Exp Res. 2013 May;25(2):175-81. doi: 10.1007/s40520-013-0028-7. Epub 2013 Apr 3.
Sleep problems are common in older adults. They have been associated with reduced physical functionality affecting their health, well-being, and consequently their overall quality of life. We conducted this study to examine the association between sleep/wake patterns and functional capacity in hypertensive older adults.
Participants were recruited from the study "Effect of the angiotensin-converting enzyme inhibitors over grip strength and functionality of older adults" and accepted to be part of this cross-sectional study. Subjects were 97 older adults with a mean age of 74.8 ± 3.3 years and 77 % were women. Sleep/wake patterns were determined through actigraphic data and the following variables were determined: total sleep time, number of awakenings and wake after sleep onset within the nocturnal period, and number of naps and total sleep time during the diurnal period. Functional performance measurements included short physical performance battery and grip strength. Differences in physical performance according to sleep/wake patterns were explored, and the association between the sleep/wake patterns and functionality adjusting by sex, age, body mass index, use of angiotensin-converting enzyme, number of diseases, and hypnotic intake was studied using logistic regression analysis.
Subjects sleeping <7.0 h or having fragmented sleep with >2.0 awakenings/night had a slightly but significant higher odds ratio of having functional performance impairment (p < 0.05).
Our results suggest that a better nighttime sleep consolidation might help improve daytime physical performance of older people.
睡眠问题在老年人中很常见。它们与身体功能下降有关，从而影响他们的健康、幸福感，并最终影响他们的整体生活质量。我们进行这项研究是为了探讨高血压老年人的睡眠/觉醒模式与功能能力之间的关系。
参与者是“血管紧张素转换酶抑制剂对老年人握力和功能的影响”研究中的一部分，并同意参加这项横断面研究。受试者为 97 名平均年龄为 74.8 ± 3.3 岁的老年人，其中 77%为女性。通过活动记录仪数据确定睡眠/觉醒模式，并确定以下变量：夜间总睡眠时间、夜间觉醒次数和睡眠后觉醒时间、白天小睡次数和总睡眠时间。功能表现测量包括短体适能电池和握力。根据睡眠/觉醒模式探讨了身体表现的差异，并使用逻辑回归分析研究了睡眠/觉醒模式与功能的关系，调整了性别、年龄、体重指数、血管紧张素转换酶的使用、疾病数量和催眠剂摄入等因素的影响。
每晚睡眠时间<7.0 小时或睡眠片段化、夜间觉醒次数>2.0 次的受试者，其功能表现受损的几率略高（p<0.05）。
我们的结果表明，夜间睡眠质量的提高可能有助于改善老年人白天的身体表现。
