脑卒中后高强度间歇训练对心肺健康的益处:一项随机对照试验
Kevin Moncion1, Lynden Rodrigues2,3, Bernat De Las Heras2,3
1School of Rehabilitation Sciences (K.M., K.S.N., E.W., P.S., J.A.R., A. Tang), Faculty of Science, McMaster University, Hamilton, Canada.
Stroke
|August 8, 2024
概括
短期高强度间歇训练 (HIIT) 在12周后,与中等强度持续训练 (MICT) 相比,在中风幸存者中显著改善了心脏呼吸能力 (V̇O2峰值). HIIT为中风后康复提供了一个有前途的替代方案.
科学领域:
- 运动生理学 运动生理学
- 神经康复 神经康复 神经康复
- 心血管健康 心血管健康
背景情况:
- 有限证据表明,短期高强度间歇训练 (HIIT) 对于改善中风后心脏呼吸能力 (V·O2峰值) 的有效性有限.
- 卒中幸存者经常经历身体能力的减少,需要有效的康复策略.
研究的目的:
- 为了比较12周的短间隔HIIT与中等强度持续训练 (MICT) 对中风后个体的V·O2峰值的影响.
- 评估这些培训模式对心血管风险因素和流动性结果的影响.
主要方法:
- 一个多部位,为期12周的随机对照试验 (NCT03614585) 涉及82名参与者 (中风后≥6个月).
- 参与者被随机分配到每周3天的HIIT (10x1分钟80%-100%心率储备,1分钟恢复) 或MICT (20-30分钟40%-60%心率储备).
- 测量了V·O2峰值,动脉脉冲波速,血压,腰比,6分钟步行测试和10米步行速度. 分析使用了线性混合模型.
主要成果:
- 在12周 (P=0.004) 时,HIIT组在V̇O2峰值 (∆3.52 mL/kg·min) 显著改善,与MICT组 (∆1.71 mL/kg·min) 相比.
- 在8周的随访期间,V̇O2峰值的组之间没有发现显著差异.
- 对于心血管风险因素或移动性结果,没有发现显著的按时间分组相互作用.
结论:
- 短间隔HIIT是MICT的潜在有效替代品,用于改善中风幸存者的心肺呼吸能力 (V·O2峰值) 干预后12周.
- 需要进一步的研究来探索长期影响和对其他功能结果的影响.
相关概念视频
01:17Exercise and Cardiac Output
954
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...
954
01:20Exercise and Cardiovascular Response
760
Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
760
01:22Cardiac Output II: Effect of Stroke Volume on Cardiac Output
776
Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
776
01:11Cardiac Output and Stroke Volume
2.9K
Cardiac output (CO) is an integral aspect of human physiology, reflecting the heart's efficiency and responsiveness to the body's needs. It represents the volume of blood that the left or right ventricle ejects into the aorta or pulmonary trunk each minute. The CO is calculated by multiplying the heart rate (HR)—the number of heartbeats per minute—by the stroke volume (SV)—the amount of blood pumped out with each heartbeat.
In an average resting adult male, the typical cardiac...
In an average resting adult male, the typical cardiac...
2.9K