分子补充可以提高健康成年人的体力表现吗? 一个系统的审查和元分析
Kaixiang Zhou1, Zhangyuting Shang2, Chaoqun Yuan3
1College of Physical Education and Health Science, Chongqing Normal University, Chongqing, China.
Frontiers in nutrition
|June 21, 2024
概括
分子 (H2) 补充剂在增强下肢爆炸力和减少运动期间疲劳方面表现有前途. 然而,它并不能显著改善健康成年人的有氧或无氧耐力和肌肉力量.
科学领域:
- 运动生理学 运动生理学
- 分子生物学分子生物学
- 营养科学 营养科学
背景情况:
- 运动引起的氧化应激和炎症会损害身体的表现.
- 现有的缓解策略在有效性和潜在副作用方面存在局限性.
- 分子 (H2) 以其抗氧化和抗炎性质而闻名,初步研究表明它对运动表现和减轻疲劳有好处.
研究的目的:
- 系统地审查和元分析H2补充对身体表现的各个方面的影响.
- 提供基于证据的见解,了解H2在增强耐力,肌肉力量和爆炸力方面的有效性.
- 为在体育和运动环境中利用H2提供潜在策略的信息.
主要方法:
- 在六个主要的科学数据库中进行了全面的文献搜索.
- 从涉及597名参与者的27项符合条件的研究中提取和分析了使用随机效应元分析的数据.
- 我们使用推评估,开发和评价 (GRADE) 框架来评估证据的质量.
主要成果:
- 补充H2显著改善了下肢爆炸力 (SMD = 0.30,p = 0.018) 并降低了感知劳动力 (RPE) (SMD = -0.37,p = 0.009) 和血液乳酸盐 (BLA) 水平 (SMD = -0.37,p = 0.001).
- 没有观察到有氧耐力 (V·O2max或一般耐力),无氧耐力或肌肉力量的显著改善.
- 平均心率 (HRavg) 没有受到H2补充的显著影响.
结论:
- 在健康的成年人中,补充H2似乎有利于增强下肢的爆炸力,并有助于减轻疲劳和血液乳酸清除.
- 目前的证据不支持H2提高有氧/无氧耐力或肌肉力量的有效性.
- 建议进一步进行高质量的研究,以验证这些发现,并探索H2对人类身体功能的影响.
相关概念视频
Exercise and Muscle Performance
1.4K
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...
1.4K
Exercise and Cardiovascular Response
780
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...
780
Exercise and Cardiac Output
982
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...
982
Oxygen Transport in the Blood
2.6K
Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
2.6K
Muscle Recovery and Fatigue
2.0K
Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
2.0K


