背练习期间肌肉氧和动态:强度和速度损失对脱氧和再氧化的影响
Shih-Hsuan Chan1, Tsung-Lin Chiang1, Yu-Chin Lin1
1Graduate Institute of Sport Coaching Science, Chinese Culture University, Taipei City, Taiwan (R.O.C.).
Journal of sports science & medicine
|September 11, 2025
概括
较高的训练强度和速度损失 (VL) 门影响抵抗运动期间的肌肉氧和 (SmO) 动态. 将60%的一次重复最大 (1RM) 与40%的VL相结合,显示SmO2下降速度最慢,可能会延迟疲劳.
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
- 肌肉生理学 肌肉生理学
背景情况:
- 抵抗训练对于提高肌肉性能至关重要.
- 了解抵抗运动期间肌肉氧和 (SmO2) 动态对于优化训练至关重要.
- 在SmO2上,负载强度和速度损失 (VL) 值之间的相互作用需要进一步研究.
研究的目的:
- 为了研究不同训练强度 (60%对比80%一次重复最大 [1RM]) 和速度损失 (VL) 值 (20%对比40%) 在背时对SMO反应的影响.
- 分析这些组合对SmO2下降和恢复斜坡的影响.
主要方法:
- 18名经过抵抗训练的雄性在四个条件下进行了背:60%1RM-VL20%,60%1RM-VL40%,80%1RM-VL20%,80%1RM-VL40%.
- 不断监测横向巨的肌肉氧和度 (SmO2).
- 分析了三组运动和恢复阶段的SmO2大小和斜率变化数据,其中包括5分钟的休息时间.
主要成果:
- 在不同条件下 (47.28%57.67%) 没有观察到SmO2下降幅度的显著差异.
- 在80%1RM-VL20%条件下,SmO2的下降斜率在较低强度或较高VL条件下明显更 (p < .001).
- 休息期间SmO2恢复斜率在不同条件下没有显著差异 (p > .05).
结论:
- 将60%的1RM与40%的VL值相结合,导致SmO2下降速度最慢,可能延迟疲劳,并允许更大的重复量.
- 训练强度和VL值影响肌肉氧化动态,SmO2脱率对80%的VL值敏感,1RM.
- 个性化抵抗训练方案应整合训练强度,VL大小和氧化动态,以获得最佳结果.
相关概念视频
Muscle Recovery and Fatigue
4.0K
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...
4.0K
Special considerations while measuring oxygen saturation
899
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
899
Oxygen Transport in the Blood
6.1K
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,...
6.1K
Respiration and Gaseous Exchange
3.1K
The intricate interplay between the cardiovascular and respiratory systems is crucial for efficiently transporting respiratory gases throughout the body. Let us explore the cardiovascular system's multifaceted functions, emphasizing its pivotal role in gas exchange.
Respiration involves the exchange of gases, especially oxygen (O2) and carbon dioxide (CO2), between the alveoli and body cells, a process facilitated by blood circulation. As a result, the cardiovascular system, which involves...
Respiration involves the exchange of gases, especially oxygen (O2) and carbon dioxide (CO2), between the alveoli and body cells, a process facilitated by blood circulation. As a result, the cardiovascular system, which involves...
3.1K
Factors Affecting Respiration
9.0K
Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:
9.0K
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


