方案对连续递增循环运动测试中峰值功率输出的影响。
Effect of protocol on peak power output in continuous incremental cycle exercise tests.
机构信息
Sport Research, 7004HH, Doetinchem, The Netherlands.
University of Exeter, Sport and Health Sciences, Exeter, EX12LU, UK.
出版信息
Eur J Appl Physiol. 2022 Mar;122(3):757-768. doi: 10.1007/s00421-021-04880-5. Epub 2022 Jan 6.
PURPOSE
Peak power output ([Formula: see text]peak) in an incremental exercise test (EXT) is considered an important predictor of performance for cyclists. However, [Formula: see text]peak is protocol dependent. The purpose of this study was to model the effect of EXT design on [Formula: see text]peak.
METHODS
An adapted version of a previously developed mathematical model was used. For the purpose of validity testing, we compared predicted [Formula: see text]peak differences (predicted Δ[Formula: see text]peak) with actual Δ[Formula: see text]peak found in sports science literature.
RESULTS
The model quantified Δ[Formula: see text]peak between 36 EXT designs with stage durations in the range 1-5 min and increments in the range 10-50 W. Predicted Δ[Formula: see text]peak and actual Δ[Formula: see text]peak across a wide range of performance levels of cyclists were in good agreement. Depending on the specific combination of increment and stage duration, [Formula: see text]peak may be widely different or equivalent. A minimum difference in increment (5 W) or in stage duration (1 min) already results in significantly different [Formula: see text]peak. In EXTs having the same ratio between increment and stage duration, [Formula: see text]peak in the EXT with the shortest stage duration or the greatest increment is significantly higher. Tests combining 15 W, 25 W or 40 W increments with 2, 3 and 4 min stage durations, respectively, are 'special' in that their [Formula: see text]peak approximates the power output associated with maximal oxygen uptake ([Formula: see text]).
CONCLUSIONS
The modeling results allow comparison of [Formula: see text]peak between widely different EXT designs. Absolute performance level does not affect Δ[Formula: see text]peak. [Formula: see text]peak15/2, [Formula: see text]peak25/3 and [Formula: see text]peak40/4 constitute a practical physiologic reference for performance diagnostics and exercise intensity prescription.
目的
递增运动测试（EXT）中的最大功率输出（[Formula: see text]peak）被认为是自行车运动员表现的重要预测指标。然而，[Formula: see text]peak 取决于测试方案。本研究的目的是建立模型来研究 EXT 设计对[Formula: see text]peak 的影响。
方法
使用了先前开发的数学模型的改编版本。为了验证有效性，我们将预测的[Formula: see text]peak 差异（预测的 Δ[Formula: see text]peak）与体育科学文献中发现的实际 Δ[Formula: see text]peak 进行了比较。
结果
该模型量化了 36 种 EXT 设计之间的 Δ[Formula: see text]peak，这些设计的阶段持续时间范围为 1-5 分钟，增量范围为 10-50W。预测的 Δ[Formula: see text]peak 和 across across 不同自行车运动员表现水平的实际 Δ[Formula: see text]peak 非常吻合。根据增量和阶段持续时间的具体组合，[Formula: see text]peak 可能会有很大差异或等效。增量（5W）或阶段持续时间（1 分钟）的最小差异已经导致[Formula: see text]peak 显著不同。在增量和阶段持续时间之间具有相同比例的 EXT 中，阶段持续时间最短或增量最大的 EXT 的[Formula: see text]peak 显著更高。分别结合 15W、25W 或 40W 增量以及 2、3 和 4 分钟阶段持续时间的测试是“特殊”的，因为它们的[Formula: see text]peak 近似于与最大摄氧量相关的功率输出（[Formula: see text]）。
结论
建模结果允许在广泛不同的 EXT 设计之间比较[Formula: see text]peak。绝对表现水平不会影响 Δ[Formula: see text]peak。[Formula: see text]peak15/2、[Formula: see text]peak25/3 和[Formula: see text]peak40/4 构成了用于性能诊断和运动强度处方的实用生理参考。
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