在训练有素的骑自行车者中,在血液流量受限制和不受限制的间隔之间,类似的性能和肌肉适应
Fabio Zambolin1,2, Olav Vikmoen3, Kristoffer Toldnes Cumming3,4
1Department of Sport and Exercise Sciences. Manchester Metropolitan University, Manchester, UK.
Journal of applied physiology (Bethesda, Md. : 1985)
|February 16, 2026
概括
血液流量限制 (BFR) 训练在训练有素的骑自行车者中提供与传统的高强度间歇训练 (HIIT) 相似的耐力性能增长,尽管使用较低的运动强度. 这种方法提供了可比的结果,减少了身体压力.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 肌肉适应 肌肉适应
背景情况:
- 血液流量限制 (BFR) 训练可以在较低的负载下进行炼,在未经训练的个体中产生与传统训练相比或优于传统训练的结果.
- 在训练有素的竞争运动员中,BFR的疗效仍然不太清楚.
- 这项研究调查了BFR对精英骑自行车运动员耐力表现和肌肉适应的影响.
研究的目的:
- 为了比较精力匹配的高强度间歇训练 (HIIT) 微循环的效果,在训练有素的骑自行车者中使用和不使用BFR.
- 评估耐力性能指标的变化,包括VO2max,乳酸值和最大输出功率.
- 评估细胞水平的肌肉适应,例如肌肉纤维横截面积和线粒体酶活性.
主要方法:
- 17名训练有素的骑自行车者接受了为期6天的训练微循环,随机分配到BFR或传统HIIT的HIIT.
- 训练包括五次HIIT训练,每次6次5分钟间隔,恢复时间为2.5分钟.
- 测量包括VO2max,乳酸值 (LT4) 的功率输出,5分钟最大功率输出 (MPO5min),以及分析纤维大小和线粒体标志物的肌肉活检.
主要成果:
- 与HIIT组相比,BFR组的功率显著低于HIIT组 (42%低),但报告了类似的炼水平.
- 两组在MPO5min (大约4%) 中都取得了相似的改善,VO2max,LT4,血红蛋白质量或血液体积没有显著变化.
- 仅HIIT就导致了2型肌肉纤维横截面积的减少,这种效应在BFR组中没有观察到.
结论:
- 将血流限制 (BFR) 整合到6天间隔微循环中,在训练有素的骑自行车者中,可以获得与传统HIIT相似的性能提升.
- BFR可能提供一种可行的替代方案,以保持或改善耐力表现,并可能减少肌肉纤维的机械应力.
- 进一步的研究可以探索不同运动员群体和训练目标的最佳BFR协议.
相关概念视频
Exercise and Cardiovascular Response
4.6K
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...
4.6K
Exercise and Muscle Performance
2.6K
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
2.6K
Exercise and Cardiac Output
2.1K
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...
2.1K
Pathophysiology of Cardiac Performance
1.7K
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...
1.7K


