自主心血管功能和血液动力学在休息和运动后恢复期间的可重现性
Venla P Ylinen1, Rasmus I P Valtonen1,2,3, M Juhani Junttila1,2,3
1Research Unit of Biomedicine and Internal Medicine, University of Oulu, Oulu, Finland.
Physiological reports
|August 18, 2024
概括
心率变化 (HRV) 在年轻成年人运动后是不可重现的,但血压 (BP) 测量显示出很好的可重现性. 这影响了用于运动后恢复跟踪的可穿戴设备的使用.
科学领域:
- 运动生理学 运动生理学
- 心血管健康 心血管健康
- 生物医学工程 生物医学工程
背景情况:
- 可穿戴技术和家庭设备可以轻松监测心率变化 (HRV) 和血压 (BP).
- 这些指标用于评估用户在急性运动训练后的恢复状态.
- 在年轻,健康的人群中,运动后HRV和BP测量的可靠性仍然不清楚.
研究的目的:
- 确定年轻参与者的心率变化 (HRV) 和血压 (BP) 的可重现性.
- 评估这些生理标记在休息状态和有氧运动后的可靠性.
主要方法:
- 18名健康的年轻参与者完成了随机的有氧运动 (骑自行车) 和控制会.
- 测量了心率变化 (HRV) 指数 (RMSSD,高/低频功率) 和血压 (BP).
- 使用类内相关系数 (ICC) 和变化系数 (CV%) 评估可重复性.
主要成果:
- 休息时HRV指数表现出中等至优异的可再生性,但运动后可再生性较差.
- 系统性血压 (BP) 在有氧运动前后表现出良好的可再生性.
- 运动后HRV的课内相关系数 (ICC) 从-0.06到0.60.
结论:
- 心率变化 (HRV) 测量在年轻成年人急性有氧运动后缺乏可重复性.
- 血压 (BP) 测量在休息和运动后高度可重现.
- 目前的可穿戴技术对通过HRV评估运动后恢复的实用性可能在这个人群中有限.
相关概念视频
Autoregulation of Blood Flow
2.2K
Autoregulation mechanisms are characterized by their inherent capacity for self-regulation without necessitating specific nervous stimulation or endocrine control. These mechanisms facilitate the adjustment of blood flow and, therefore, perfusion specific to each tissue region. This self-regulation encompasses chemical signals and myogenic controls.
Chemical Signaling in Autoregulation
Chemical signaling operates at the precapillary sphincter level, inciting either contraction or relaxation....
Chemical Signaling in Autoregulation
Chemical signaling operates at the precapillary sphincter level, inciting either contraction or relaxation....
2.2K
Cardiac Output I:Effect of Heart Rate on Cardiac Output
676
Cardiac Output
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
676
Exercise and Cardiac Output
950
Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
Sustained exercise increases the muscles' oxygen demand, which can be...
Sustained exercise increases the muscles' oxygen demand, which can be...
950
Pathophysiology of Cardiac Performance
620
Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
620


