年龄与缓和的休息和活动循环节模式有关:肌肉,运动和衰老的研究 (SOMMA)
Melissa L Erickson1, Terri L Blackwell2, Theresa Mau2,3
1Translational Research Institute, AdventHealth, Orlando, Florida, USA.
概括
老年人表现出较弱的昼夜节律,女性表现出比男性更强的节律模式. 婚姻状况和财务状况等社会人口统计学因素影响这些节奏,以及与年龄相关的变化.
科学领域:
- 老年学是一门学科.
- 时间生物学 时间生物学
- 行为科学 行为科学
背景情况:
- 在老年人群中,循环节的行为模式并未得到充分理解.
- 这项研究调查了老年人休息活动节律 (RAR) 的年龄特征.
- 这项研究还研究了RAR和社会人口统计学因素之间的关系.
研究的目的:
- 在社区居住的老年人中描述休息活动节奏 (RAR) 的特定年龄特征.
- 探索RAR与各种社会人口统计特征之间的关联.
- 识别与衰老中的昼夜模式相关的行为表型.
主要方法:
- 在肌肉,移动性和衰老研究 (SOMMA) 中,使用820名老年人 (平均年龄76.4岁,58.2%是女性) 的手腕穿戴动图数据对休息活动节奏 (RAR) 的横截面分析.
- 使用扩展的等号曲线模型来推导RAR参数.
- 使用功能主要组件分析来识别影响RAR变异的关键变量.
主要成果:
- 年龄较大与缓和的RAR有关,而女性表现出比男性更强的节律 (p < .05).
- 总活动 (56%) 和活动时间 (20%) 是RAR变异的主要原因.
- 早期的缩与更高的振幅和总活动有关 (p < .001,p = .02).
- 类似婚姻的关系和财务稳定与更强的节奏相关;高等教育显示反向关联 (p < .05).
结论:
- 衰老与缓解昼夜行为有关,表现出性变态.
- 社会人口学因素显著影响老年人的昼夜行为.
- 鉴定出一种独特的行为表型,其特点是早期的峰值活动,高幅度和更大的总活动.
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