5周重复的冲刺训练在低氧中对全球鼓动和核心肌肉功能的影响
Qingde Shi1, Jinlei Nie1, Tomas K Tong2
1Faculty of Health Sciences and Sports, Macao Polytechnic University, Macao S.A.R, China.
Journal of sports science & medicine
|December 9, 2024
概括
低氧反复冲刺训练 (RSH) 增强了团队运动运动员的反复冲刺能力 (RSA),但没有显著地改变灵感肌 (IM) 或核心肌 (CM) 的强度. 然而,RSH可能会改善IM耐力,减轻运动引起的IM功能下降.
科学领域:
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
- 低氧训练 培训 低氧训练
背景情况:
- 众所周知,在缺氧 (RSH) 中重复冲刺训练可以提高团队运动运动员的重复冲刺能力 (RSA).
- 对于RSH对整体鼓动肌 (IM) 和核心肌 (CM) 功能的影响仍然基本上没有报道.
- 了解这些并发效应对于优化培训方案至关重要.
研究的目的:
- 为了研究5周的RSH干预对团队运动运动员的RSA,IM功能 (最大吸入口腔压力,PImax) 和CM功能 (耐力板测试,SEPT) 的影响.
- 为了比较这些变量在干预前和后的团队体育特定间歇性炼协议 (IEP) 期间的变化.
- 确定RSH是否与RSA改善一起导致IM和CM功能同时发生变化.
主要方法:
- 20名团队运动运动员被分为RSH (n=10) 和控制 (CON,n=10) 组.
- 在RSH组进行了15次5x5秒全力冲刺,在25秒的被动恢复下在低氧 (13.5%O2) 下进行了25次,持续了5周.
- 干预前和干预后评估了RSA,PImax和SEPT的表现,并在每个评估期内在IEP之前和之后测量PImax和SEPT.
主要成果:
- 干预后,RSH组显示RSA显著改善 (>6%,p < 0.05),而CON组显示没有显著变化.
- 与CON相比,RSH组的全球IM强度 (PImax) 和CM功能 (SEPT) 在干预后没有显著变化.
- 在干预前的IEP期间,PImax显著下降,但在RSH组干预后,这种下降得到缓解 (p > 0.05). 在IEP期间的SEPT下降在干预后保持.
结论:
- 五周的RSH有效地提高了团队运动运动员的RSA.
- RSH似乎没有改善整体IM或CM强度.
- 运动后RSH期间PImax下降的缓解表明IM耐力可能有所改善,尽管这并没有转化为增强CM疲劳抵抗力.
更多相关视频
相关概念视频
01:23Hypoxia
898
Hypoxia is a medical condition characterized by an inadequate oxygen supply to body tissues. It typically manifests as a bluish discoloration of the skin and mucosae, especially in fair-skinned individuals, when hemoglobin (Hb) saturation drops below 75%.
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
898
01:24Respiratory Capacities
741
Respiratory capacities are crucial indicators of lung function, representing the maximum amount of air an individual's respiratory system can handle during various breathing phases.
One key metric is the Inspiratory Capacity (IC), which represents the maximum amount of air that can be inhaled with full effort. IC is calculated by summing the tidal volume and inspiratory reserve volume, typically ranging from 2.4 to 3.6 liters.
The Functional Residual Capacity (FRC) represents the air in the...
One key metric is the Inspiratory Capacity (IC), which represents the maximum amount of air that can be inhaled with full effort. IC is calculated by summing the tidal volume and inspiratory reserve volume, typically ranging from 2.4 to 3.6 liters.
The Functional Residual Capacity (FRC) represents the air in the...
741
01:27Exercise and Muscle Performance
1.3K
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...
1.3K
01:47Lung Capacity
49.4K
The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
49.4K
01:17Exercise and Cardiac Output
919
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...
919
01:25Pulmonary Function Tests
308
Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
308