低负荷阻力运动与血流限制的急性反应
Andrew R Jagim1,2,3, Jordan Schuler2, Elijah Szymanski4
1Sports Medicine, Mayo Clinic Health System, Onalaska, WI 54650, USA.
Journal of functional morphology and kinesiology
|December 27, 2024
概括
与高负荷,非BFR运动相比,低负荷阻力运动与血流限制 (BFR) 允许更高的训练量,更少的代谢压力和神经肌肉疲劳. 这种BFR方法可以随着时间的推移增强培训适应性.
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
- 康复 康复 康复 康复
背景情况:
- 血流限制 (BFR) 是一种已知能增加代谢应激并改善训练适应性的抵抗运动技术.
- 然而,BFR可能会导致急性神经肌肉疲劳和更高的感知力度.
研究的目的:
- 用BFR研究对低负荷阻力运动的急性生理反应.
- 为了比较这些对高负荷耐力运动的反应,没有BFR.
主要方法:
- 经过娱乐训练的男性和女性接受了一项随机交叉设计研究.
- 参与者在BFR的1RM中30%,在BFR的1RM中60%进行背.
- 测量包括血乳酸,反运动跳跃 (CMJ) 高度和感知劳动力 (RPE) 评级.
主要成果:
- 与非BFR组相比,BFR组完成了显著更多的重复 (75.0对68.23),但训练量较低 (2380对4756公斤).
- 使用BFR (5.98 mmol/L) 的血乳酸的增加明显小于没有BFR (11.61 mmol/L) 的.
- 在BFR条件下,CMJ高度的减少明显较小 (-1.50厘米),与非BFR条件相比 (-6.01厘米).
结论:
- 使用BFR的低负荷阻力练习可以实现更高的训练量.
- 与高负荷,非BFR运动相比,BFR协议导致更低的代谢压力和减少神经肌肉疲劳.
- 这表明BFR可能是一个可行的策略,用于增强训练适应性,减少疲劳.
相关概念视频
01:20Exercise and Cardiovascular Response
637
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...
637
01:17Autoregulation of Blood Flow
2.0K
Autoregulation mechanisms are characterized by their inherent capacity for self-regulation without necessitating specific nervous stimulation or endocrine control. These mechanisms facilitate the adjustment of blood flow and, therefore, perfusion specific to each tissue region. This self-regulation encompasses chemical signals and myogenic controls.
Chemical Signaling in Autoregulation
Chemical signaling operates at the precapillary sphincter level, inciting either contraction or relaxation....
Chemical Signaling in Autoregulation
Chemical signaling operates at the precapillary sphincter level, inciting either contraction or relaxation....
2.0K
01:29Blood Flow
64.5K
Blood is pumped by the heart into the aorta, the largest artery in the body, and then into increasingly smaller arteries, arterioles, and capillaries. The velocity of blood flow decreases with increased cross-sectional blood vessel area. As blood returns to the heart through venules and veins, its velocity increases. The movement of blood is encouraged by smooth muscle in the vessel walls, the movement of skeletal muscle surrounding the vessels, and one-way valves that prevent backflow.
64.5K
01:27Exercise and Muscle Performance
1.2K
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...
1.2K
01:26Exercise Stress Test
123
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
123