长时间运行后运行经济的变化和可达到的最大氧气消耗:培训状态的影响
1Faculty of Education and Arts, Nord University, Bodø, Norway.
Scandinavian journal of medicine & science in sports
|April 27, 2024
概括
与活跃的成年人相比,训练有素的跑步者在长时间的运动中更好地保持跑步经济和最大的氧气消耗. 经过训练的个体中这种优越的弹性突出显示了耐力跑步的关键生理适应.
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:
- 长时间以中等至高强度运行可能会损害运行经济性 (RE) 并降低最大氧气消耗 (VO2max).
- 目前尚不清楚这些下降是否在耐力训练的跑步者和活跃的成年人中表现得类似,当他们以相同的相对强度炼时.
研究的目的:
- 在训练有素的跑步者 (TR) 和活跃的成年人 (AA) 中,比较长时间跑步后跑步经济 (RE) 和可达到的最大氧气消耗 (VO2max) 的变化.
- 为了调查训练有素的跑步者是否表现出比同样相对运动强度的活跃成年人更强的性,以应对运动引起的疲劳.
主要方法:
- 招募了10名训练有素的跑步者 (TR) 和10名活跃的成年人 (AA).
- 在运行70%的VO2max1小时之前和之后评估RE和VO2max.
- 组之间的亚最大氧耗 (VO2),VO2max和相对强度 (VO2/VO2max) 的比较变化.
主要成果:
- 与训练有素的跑步者 (0.07 L/min) 相比,活跃的成年人显示出亚最大VO2 (0.20 L/min) 的显著增加.
- 在活跃的成年人中,可达到的VO2max显著下降 (-0.21 L/min),但在训练有素的跑步者中保持不变.
- 跑步比赛后,活动成年人 (8.3%) 的相对强度比训练有素的跑步者 (2.6%) 增加更多.
结论:
- 经过训练的跑步者表现出在长时间跑步后抵抗跑步经济性下降和最大氧气消耗的卓越能力.
- 这些发现表明,受过训练的个体的生理适应增强了在持续的,相对高强度运动中对疲劳的弹性.
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