在中晚成年期的步行能量和白质超强度
Ryan J Dougherty1,2, Amal A Wanigatunga2,3, Yang An4
1Department of Neurology Johns Hopkins School of Medicine Baltimore Maryland USA.
Alzheimer's & dementia (Amsterdam, Netherlands)
|November 29, 2023
概括
包括成本与容量的比率在内的步行能量与老年人白质超强度 (WMHs) 有关. 较低的能源成本和行走能力与减少的WMH体积相关,这表明移动效率和大脑健康之间存在联系.
科学领域:
- 神经科学是一个神经科学.
- 老年学是指老年学的学科.
- 生物医学工程 生物医学工程
背景情况:
- 白质超强度 (WMHs) 是与认知和运动衰退相关的与年龄相关的大脑变化.
- 随着年龄的增长,由于步行成本上升和容量下降,移动的能源成本会增加.
- 了解步行能量和WMH之间的联系对于老龄化人口至关重要.
研究的目的:
- 研究各种步行能量测量和白质超强度 (WMHs) 之间的横截面关联.
- 探索步行期间的能量消耗和容量如何与中晚年成年人的大脑健康有关.
主要方法:
- 601名没有认知障碍的成年人 (平均年龄为66.9岁) 接受MRI测量WMH量化.
- 参与者完成了标准化的慢步和高峰步行评估,并进行了代谢测量 (V ̇O2).
- 多变量线性回归模型分析了步行能量和WMH体积之间的关联,并对共变量进行调整.
主要成果:
- 较低的慢节奏V̇O2与较低的WMH体积相关 (B = 0.07,P = 0.030).
- 峰值速度较高的V̇O2与较低的WMH体积相关 (B = -0.10,P = 0.007).
- 较低的成本与容量的比率显示出与较低的WMH数量最强的关联 (B = 0.12,P < 0.0001).
结论:
- 成本与容量的比率,反映出行走能力的百分比,与WMH体积有显著的关联.
- 步行能量,特别是成本与容量的比率,可以作为白质完整性的生物标志物.
- 这些发现突显了老年人身体功能和脑血管健康之间的相互作用.
关键词:
心脏呼吸系统的健康状况大脑小血管疾病是大脑小血管疾病.大脑血管健康大脑血管健康步态 步态 步态 步态磁共振成像技术的使用走路的代谢成本发动机控制器的控制器神经成像是一种神经成像.身体健康 身体健康 身体健康身体功能 身体功能 身体功能经济是步行经济.步行效率效率是行走的效率.更多相关视频
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