经过连续或间歇循环程序后的急性表现疲劳性与完成的总工作不成比例
Keenan B MacDougall1, Jenny Zhang1, Micah Grunau1
1Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada.
概括
高强度间歇训练 (HIIT) 导致比常量工作率 (CWR) 运动更大的表现疲劳,尽管总工作量较少. 外围因素和感知到的劳累与HIIT后这种减弱的耐力表现有很强的相关性.
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
- 人类表现的人类表现.
背景情况:
- 经典训练理论表明,表现疲劳性与完成的总工作 (TWD) 相称.
- 这种关系受到质疑,特别是在高强度运动方案之后.
- 了解疲劳机制对于优化训练干预至关重要.
研究的目的:
- 为了研究高强度间歇训练 (HIIT) 和常量工作率 (CWR) 循环后的性能疲劳性和感知力的努力.
- 确定TWD,中心/外围疲劳和任务完成时间失败 (TTF) 之间的关系.
- 为了区分HIIT和CWR协议之间的疲劳指数.
主要方法:
- 16名参与者通过随机顺序完成了增量测试,TTF试验,HIIT和CWR会议.
- 在HIIT和CWR之后,在80%的峰值功率输出 (PPO) 时立即评估TTF.
- 中央和外周疲劳使用插曲抽技术测量;感知措施也被记录下来.
主要成果:
- 尽管HIIT的TWD较低,但随后的TTF与CWR相比显著更短.
- HIIT诱导了自愿和唤起的力量的更大损害,并加剧了感知措施.
- 在最后的TTF试验后,没有观察到疲劳指标的显著差异.
结论:
- 性能疲劳性不仅仅取决于TWD,HIIT会比CWR引起更大的疲劳.
- 周围疲劳和感知到的劳累是高强度骑自行车后耐力性能限制的关键决定因素.
- 这些发现挑战了经典的训练理论,并强调了外围因素在运动不耐受性中的作用.
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