高强度间歇训练提高了心血管健康,并在非赛季期间诱导左心室缩
Tomas Venckunas1, Birute Gumauskiene2, Pornpimol Muanjai1
1Institute of Sport Science and Innovations, Lithuanian Sports University, Sporto Str. 6, 44221 Kaunas, Lithuania.
年轻运动员的高强度间歇训练 (HIIT) 提高了跑步表现和有氧能力. 这项为期7周的计划还诱导了显著的心脏重塑,包括左心室壁缩和左心房扩张.
科学领域:
- 心血管生理学心血管生理学
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
背景情况:
- 耐力训练可以提高心血管健康和运动表现.
- 高强度间歇训练 (HIIT) 对心肌重塑的影响仍未得到充分研究.
- 了解训练引起的心脏适应对于优化运动发展至关重要.
研究的目的:
- 在业余运动员中,研究心脏结构变化后7周的体积渐进高强度间歇训练 (HIIT) 计划.
- 评估HIIT对有氧能力和跑步表现的影响.
- 为了确定HIIT诱导的心肌重塑的特定模式.
主要方法:
- 业余运动员 (18.2±1.0岁) 接受了为期7周的21次量级 HIIT 慢跑计划.
- 通过测量氧气吸收峰值来评估心血管健康.
- 胸外二维心声回声学在干预前后评估心脏结构.
- 在200米和2000米的距离上测量了跑步表现.
主要成果:
- 观察到跑步表现和氧气吸收峰值显著改善.
- HIIT导致左心脏直径增加 (32.0 ± 2.5 到 33.5 ± 2.3 毫米).
- 左心室后壁和心室间隔膜厚度增加了约11% (p < 0.02).
- 没有注意到心室或右心房腔的显著扩张.
结论:
- 一个为期7周的高强度间歇训练 (HIIT) 计划有效地提高了年轻运动员的有氧能力和跑步表现.
- HIIT诱导了显著的心脏适应,包括左心室壁缩和左心房扩张.
- 这些发现表明,HIIT是健康的年轻运动员心脏重塑的强有力的刺激.
更多相关视频
06:28A Chronic High-Intensity Interval Training and Diet-Induced Obesity Model to Maximize Exercise Effort and Induce Physiologic Changes in Rats
Published on: April 28, 2023
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
相关概念视频
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be...
Exercise and Cardiovascular Response
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...
Heart Failure II: Pathophysiology
Exercise and Muscle Performance
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...
Cardiac Output I:Effect of Heart Rate on Cardiac Output
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
Cardiomyopathy III: Hypertrophic Cardiomyopathy
