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坡道斜率的变化会影响从单个增量测试中W的预测.

Lena Stuer1,2, Kobe Van Rie1, Jan Boone1

  • 1Department of Movement and Sports Sciences, Ghent University, Ghent, BELGIUM.

Medicine and science in sports and exercise
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PubMed
概括

斜坡增量测试低估了W ́ (工作能力高于临界功率),无论斜坡的斜率如何. 添加一个超临界功率工作次数可能会减少这种低估值,但在W ́估计中引入了显著的变化.

关键词:
关键的力量 关键的力量练习测试 练习测试氧气吸收的动力学缓慢的组成部分.

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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:

  • 临界功率 (CP) 和W ́ (CP以上的工作能力) 是关键的生理指标.
  • 准确确定W'对于训练处方和性能预测至关重要.
  • 斜坡增量 (RI) 测试是评估运动能力的常用方法.

研究的目的:

  • 在RI测试中评估不同坡道斜率的准确性,以预测W ́.
  • 为了测试这个假设,更的坡道低估了W ́,更浅的坡道提供了准确的估计.

主要方法:

  • 十三名健康男性进行了RI测试,并使用不同的坡度 (10,30和50 W·min-1).
  • CP和W ́是通过常量工作速率 (CWR) 测试传统确定.
  • 从RI测试 (W ́R) 中估计W ́,并与CWR值 (W ́CWR) 进行比较.
  • 在RI后测试中添加了一次超CP工作,以计算总W ́ (W ́T).

主要成果:

  • 所有RI测试斜率 (10,30,50 W·min-1) 都显著低估了W ́CWR.
  • 从RI测试 (W'R30,W'R10,W'R50) 中估计的W′显示出明显的低估.
  • 总W ́ (W ́T_R30,W ́T_R10,W ́T_R50) 与W ́CWR没有显著差异,但显示出很高的变化.

结论:

  • 与传统的CWR方法相比,RI测试始终低估了W ́,无论坡道的斜率如何.
  • 纳入超CP工作期后RI测试可以减轻低估,但不能消除变化.
  • 这些发现表明,在单独使用RI测试来精确确定W ́时,应谨慎使用.