水中高强度间歇训练改善了血管功能,而水中中强度持续训练则降低了超重和肥胖年轻人的休息心率:一项随机对照试验
Zhendong Yu1, Songxing Tang2, Min Hu1
1Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, Guangzhou Sport University, Guangzhou, Guangdong, China.
Journal of sports science & medicine
|September 11, 2025
概括
水中高强度间歇训练 (aHIIT) 在超重的成年人中改善了血管功能和身体组成,而水中中强度持续训练 (aMICT) 降低了静止心率. 这两种训练类型都提高了有氧能力.
科学领域:
- 运动生理学 运动生理学
- 心血管健康 心血管健康
- 肥胖问题研究研究
背景情况:
- 年轻人的超重和肥胖与心血管健康受损有关.
- 水上运动为改善身体健康和身体构成提供了一种低影响的选择.
- 不同的水生训练强度可能会产生明显的生理益处.
研究的目的:
- 为了比较8周水中中强度持续训练 (aMICT) 和水中高强度间歇训练 (aHIIT) 对超重和肥胖年轻人 (OOYA) 的身体组成,有氧健身,动脉硬和内皮功能的影响.
主要方法:
- 61名OOYA被随机分为aHIIT,aMICT或对照组.
- aHIIT涉及12次30秒高强度运动 (85-95%HRmax),休息时间为60秒.
- aMICT涉及30分钟不间断的中等强度运动 (70-75%HRmax).
- 血管功能通过手臂动脉流量介导扩张 (FMD) 进行评估;动脉硬度通过脉冲波速度 (PWV) 和脚-手臂指数 (ABI).
主要成果:
- 与对照组相比,aHIIT显著降低了ABI,增加了口和骨肌肉质量.
- 与对照组相比,aMICT显著降低了静止心率.
- 无论是aHIIT还是aMICT都改善了有氧能力 (VO2max).
- 在HIIT后的体重变化,VO2max和口炎之间观察到积极的相关性.
结论:
- aHIIT和aMICT都有效地提高了OOYA的有氧能力.
- aHIIT提供了一种节省时间的方法,以提高OOYA的血管功能 (FMD) 和身体成分.
- 在这个人群中,aMICT可能更适合降低静止心率.
相关概念视频
Exercise and Cardiac Output
1.8K
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...
1.8K
Exercise and Cardiovascular Response
3.9K
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...
3.9K
Atherosclerosis III: Management
322
Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...
322
Cardiac Output I:Effect of Heart Rate on Cardiac Output
2.4K
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...
2.4K
Hypertension IV: Drug Therapy and Lifestyle Modifications
624
Multiple classes of antihypertensive medications are employed in treating hypertension. The most commonly recommended first-line treatments include:Thiazide Diuretics, such as chlorthalidone, increase sodium and water excretion from the body, reducing blood volume and blood pressure.Angiotensin-converting enzyme inhibitors, like lisinopril, block the conversion of angiotensin I to II, a potent vasoconstrictor lowering blood pressure.Angiotensin II Receptor Blockers (ARBs) prevent angiotensin II...
624
Regulation of Stroke Volume
4.7K
The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
4.7K


