缺血预调没有人机效应,在自行车运动运动最大节奏前5分钟或30分钟应用
Alex Isidori1, Liam O'Brien1, Ira Jacobs1,2
1Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, ON, Canada.
Journal of sports sciences
|April 8, 2025
概括
在运动前5分钟或30分钟应用时,缺血预调 (IPC) 并没有改善骑自行车的表现或生理反应. 这些发现表明,目前的IPC协议可能无法可靠地提高运动表现.
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
- 人类表现的人类表现.
背景情况:
- 缺血预先调节 (IPC) 被研究为人体营养辅助剂,但其有效性在科学文献中不一致.
- 包括压力,持续时间和时间在内的IPC协议的变化可能解释这些异质反应.
- 在IPC应用和炼开始之间的最佳时间间隔仍然不清楚.
研究的目的:
- 调查是否缺血预调 (IPC) 和运动启动之间的时间间隔会影响人体效应.
- 为了确定在运动前5分钟或30分钟应用IPC是否会影响表现和生理结果.
主要方法:
- 14名受过中等训练的志愿者 (11名男性,3名女性) 接受了三个实验试验:没有IPC (CON),IPC-5 (5分钟间隔) 和IPC-30 (30分钟间隔).
- 每个试验都涉及4x5分钟的IPC协议,然后是最大10分钟的累积工作循环时间试验.
- 测量包括氧气吸收,心率,巨大的侧面组织氧化和血液中乳酸盐度.
主要成果:
- 在CON,IPC-5和IPC-30条件之间没有观察到循环性能 (累积工作) 的显著差异.
- 身体反应,包括氧气吸收,心率,组织氧化和血液乳酸,在实验试验中没有差异.
- 应用IPC的时间 (运动前5分钟与运动前30分钟) 没有引起明显的人体效应.
结论:
- 在运动前5分钟或30分钟服用缺血预调剂似乎不会提高最大循环性能或相关的生理标志物.
- 这些发现有助于关于IPC的 ergogenic 潜力的模糊证据.
- 需要进一步的研究来确定可靠地产生人体效益的特定IPC协议.
更多相关视频
07:46Bilateral Common Carotid Artery Occlusion as an Adequate Preconditioning Stimulus to Induce Early Ischemic Tolerance to Focal Cerebral Ischemia
Published on: May 9, 2013
29.0K
07:40Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training
Published on: October 10, 2019
7.2K
相关概念视频
01:20Exercise and Cardiovascular Response
659
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...
659
01:26Exercise Stress Test
144
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
144
01:17Exercise and Cardiac Output
724
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...
724