高强度初始化炼延长了V·o2max高原,并在坡道增量炼期间增加了峰值功率输出
Gabriele Marinari1, Danilo Iannetta1, Robert John Holash1
1Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada.
概括
高强度启动练习提高了峰值输出功率,并在坡道增量测试期间延长了最大氧气吸收高原. 这种干预加快了氧气吸收反应,从而改善了运动表现.
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
- 心血管健康 呼吸系统健康
背景情况:
- 在斜坡增量 (RI) 测试期间,重强度启动运动对最大氧气吸收 (V·o2max) 平原持续时间和峰值功率输出 (PO峰值) 的影响仍然不完全理解.
- 了解这些影响对于优化训练方案和运动表现至关重要.
研究的目的:
- 为了调查在RI测试期间,在重强度域内精确规定的一种重强度启动练习是否能增强PO峰值并延长Vo2max高原.
- 为了探索V·o2动力学和V·o2max平原持续时间在炼后之间的关系.
主要方法:
- 十二名休活动的成年人接受了两个条件:标准RI测试 (控制) 和RI测试,先进行重强度启动炼 (RI启动).
- 在V·o2高原持续时间 (V·o2高原时间) 的量化中,采用了分片式方程.
- 使用新型图形分析评估了平均响应时间 (MRT) 和Vo2-Y拦截.
主要成果:
- 与RI对照组相比,RI启动条件导致显著更大的V·o2平原时间 (P = 0.001) 和PO峰值 (P = 0.003).
- 在RI初始化条件下,平均响应时间 (MRT) 显著缩短 (P < 0.001).
- 较长的Vo2平原时间与较短的MRT相关 (r = -0.79; P = 0.002),表明Vo2反应更快.
结论:
- 在RI测试中,高强度的初始化炼有效地延长了V·o2max平原,并增加了PO峰.
- 观察到的好处主要归因于加速的Vo2反应,特别是更短的MRT,而不是Vo2-Y截面或Vo2-斜率的改变.
- 这一发现表明,战略炼可以成为增强耐力炼能力和表现的宝贵工具.
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