坐运动的心肺呼吸和有氧需求
Sunghyun Hong1, Minsuk Oh1,2,3, Chang-Geun Oh1
1Department of Sport Industry Studies, Yonsei University, 50 Yonseiro, Seodaemun-gu, Seoul, 03722, South Korea.
Scientific reports
|August 8, 2024
概括
坐显著增加了氧气需求,可能超过最大氧气消耗 (V ̇O2max). 较高的强度水平导致在这种抵抗运动中消耗更多的氧气.
科学领域:
- 运动生理学 运动生理学
- 心血管健康 呼吸系统健康
背景情况:
- 是主要的抵抗运动,传统上通过无氧途径观察.
- 坐的有氧需求和心肺呼吸影响,特别是跨多个组,尚未完全理解.
研究的目的:
- 为了研究心肺呼吸反应,特别是心率和氧气需求,在坐练习期间.
- 探索不同的力量状态如何影响这些对坐的生理反应.
主要方法:
- 22名经过抵抗训练的男性在3分钟的休息时间内完成了5组10个,在1次重复最大 (RM) 的65%时完成了5组10个.
- 测量心率,肺气交换 (氧气消耗[V̇O2],二氧化碳产量[V̇CO2]) 和最大氧气消耗 (V̇O2max).
- 参与者被分为高强度 (HS) 和低强度 (LS) 组,基于正常化的1RM地表现.
主要成果:
- 在坐运动期间,氧气消耗量 (V·O2) 达到相当高的水平,平均为47.8毫升/千克/分钟,占V·O2max的100.6%.
- 高强度 (HS) 组与低强度 (LS) 组 (93.7%) 相比,高强度 (HS) 组相对于其VO2max (108.0%) 呈现出更高的峰值V̇O2.
- 运动期间的V̇O2超过了V̇CO2,而休息期间则发生相反的情况,这表明了不同的代谢需求.
结论:
- 坐会给心脏呼吸系统带来很大的负荷,氧气需求很大,可能达到或超过最大的氧气吸收量.
- 个人力量状况对坐的生理反应起着作用,影响氧气消耗的程度.
- 这些发现突出了的相当多的有氧成分,挑战了它的纯无氧分类.
相关概念视频
Exercise and Cardiovascular Response
760
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...
760
Exercise and Cardiac Output
954
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...
954
Respiratory Capacities
780
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...
780
Respiratory Volumes and Capacities I
980
Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
980
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
Respiratory Volumes and Capacities
1.8K
The respiratory system is responsible for the intake of oxygen and the expulsion of carbon dioxide from the body. Respiratory volumes describe the volume of air in the lungs at different phases of the respiratory cycle. Tidal volume is the air breathed in and out during normal, quiet breathing. Inspiratory reserve volume is the air that can be forcefully inspired beyond the tidal volume. In contrast, expiratory reserve volume refers to the air that can be expelled from the lungs after a normal...
1.8K


