耐力训练在增量运动测试中的肌肉氧气脱度的影响:系统性审查和元分析
Assaf Yogev1, Jem I Arnold1, Hannah Nelson1
1Environmental Physiology Laboratory, The University of British Columbia, School of Kinesiology, Vancouver, BC, Canada.
Frontiers in sports and active living
|November 8, 2024
概括
耐力训练在增量运动测试中没有显著改变肌肉最低氧和 (SmO2min). 然而,一项趋势表明,培训可能会影响峰值输出功率和SmO2min变化之间的关系.
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
- 生物医学工程 生物医学工程
背景情况:
- 最低肌肉氧和度 (SmO2min) 是一个关键指标,在增量运动测试 (IET) 中使用近红外光谱 (NIRS) 进行评估.
- 了解耐力训练对SmO2min的影响对于解释对运动的生理反应至关重要.
研究的目的:
- 进行元分析,确定耐力训练在IET期间对SmO2min (ΔSmO2min) 的影响.
主要方法:
- 在 MEDLINE,EMBASE 和 SPORTDiscus 中进行了系统的文献搜索.
- 分析了五项符合特定纳入标准的研究 (耐力训练,NIRS,IET前后训练).
- 随机效应元分析和元回归被用来合成数据,并探索与峰值功率输出 (Wpeak) 和峰值氧气吸收 (V ̇O2peak) 的关系.
主要成果:
- 在耐力训练前后检测到SmO2min没有显著差异.
- 一个趋势 (p=0.06) 表明,培训可能会影响 Wpeak 和 ΔSmO2min.之间的关系.
- 没有观察到训练对V ̇O2峰值和ΔSmO2min之间的关系有显著影响.
结论:
- 在健康个体中,耐力训练似乎不会在IET期间改变SmO2min.
- SmO2min可以作为次最大性能改善的标志物,而不是训练后的峰值运动能力变化.
- 需要进一步的研究来澄清SmO2min在耐力训练中的作用.
更多相关视频
09:04Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy
Published on: February 20, 2018
12.5K
09:33Using Near-Infrared Spectroscopy Wearable Devices to Identify Central Versus Peripheral Limitations During Exercise
Published on: December 19, 2024
761
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
739
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...
739
Oxygen Transport in the Blood
2.5K
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,...
2.5K
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
Exercise Stress Test
176
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
176
Exercise and Cardiac Output
926
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...
926
