在疲劳的老年人中,自我报告的更高的能量,步行速度和认知能力之间的纵向关联
Rebecca Ehrenkranz1, Xiaonan Zhu1, Nancy W Glynn1
1Department of Epidemiology, University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania, USA.
概括
更高的能量水平可能会保护老年人免受身体和认知能力的下降,即使是那些经历疲劳的人. 这一发现强调了在衰老研究中评估能量和疲劳的重要性.
科学领域:
- 老年学是一门学科.
- 神经科学是一个神经科学.
- 物理疗法物理治疗
背景情况:
- 老年人更高的能量水平与更好的身体功能相关.
- 在疲劳的老年人中,能量,身体功能和认知之间的关联尚未得到充分理解.
- 这项研究调查了与老年人身体和认知能力下降相关的能量水平,并考虑了疲劳状态.
研究的目的:
- 检查老年人自我报告的能量水平和身体/认知功能之间的纵向关联.
- 为了确定这些关联是否根据疲劳的存在或不存在而有所不同.
- 确定更高的能量水平对人口老龄化下降的潜在保护作用.
主要方法:
- 从健康,衰老和身体组成研究中对2613名老年人 (平均年龄74.6岁) 进行了长度研究.
- 自我报告的能量和疲劳的基线评估,其次是每年对步行速度的测量,经过修改的迷你心理状态检查 (3MS) 和数字符号替换测试 (DSST) 超过8年.
- 线性混合效应模型被用来比较高能和低能组之间的结果变化,按疲劳状态分层.
主要成果:
- 疲劳和能量较高的老年人表现出快速步行速度显著下降 (每年0.007米/秒).
- 通过DSST测量认知能力下降,仅在没有疲劳的参与者中观察到更高的能量 (β=0.17).
- 对于通常的步行速度或3MS得分,对于没有疲劳的参与者在认知功能方面也没有发现显著的关联.
结论:
- 在老年人中评估能量水平和疲劳,可以确定那些对身体和认知能力下降有弹性的人.
- 更高的能量可能会提供一种保护作用,即使在疲劳的情况下,尽管注意到了特定的下降.
- 进一步的研究可以探索维持能量水平以获得更好的衰老结果的干预措施.
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