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递增测试期间的机械功率可根据2000米赛艇测功仪表现进行估算。

Mechanical power during an incremental test can be estimated from 2000-m rowing ergometer performance.

作者信息

Turnes Tiago, Possamai Leonardo T, Penteado Dos Santos Rafael, de Aguiar Rafael A, Ribeiro Guilherme, Caputo Fabrizio

机构信息

Sports Center, Physical Effort Laboratory, Federal University of Santa Catarina, Florianópolis, Brazil -

College of Health and Sport Science, Human Performance Research Group, Santa Catarina State University, Florianópolis, Brazil -

出版信息

J Sports Med Phys Fitness. 2020 Feb;60(2):214-219. doi: 10.23736/S0022-4707.19.09967-5. Epub 2019 Oct 24.

Abstract

BACKGROUND

This study aimed to identify the relationship between the mean power output of 2000-m rowing ergometer performance with the peak power output obtained during an incremental test, in addition to verifying the possibility of using the 2000-m mean power as an intensity associated with V̇O2max.

METHODS

Nineteen rowers (age 25.5±10.6 years; V̇O2peak: 65.4±5.8 mL/kg/min) completed an incremental test followed by a 2000-m familiarization test (day 1) and a 2000-m rowing ergometer test (day 2). During the incremental test, the peak power output (PV̇O2peak) and the exercise intensity thresholds were determined. The maximal oxygen uptake (V̇O2peak) was analyzed in both tests.

RESULTS

The PV̇O2peak (284.8±44.7 W) presented the highest correlation coefficient (r=0.978) with 2000-m mean power (284.2±49.9 W) and was the only one included in stepwise regression explaining 96% of 2000-m mean power. V̇O2peak was lower in the incremental test (4.69±0.61 L/min) compared with the 2000-m rowing ergometer test (4.86±0.63 L/min; P=0.01) with a small bias limits of agreement (0.16±0.53 L/min).

CONCLUSIONS

2000-m mean power is a valid tool to estimate the PV̇O2peak and allow the achievement of V̇O2peak. Furthermore, the PV̇O2peak was the most important predictor of performance.

摘要

背景

本研究旨在确定2000米划船测功仪成绩的平均功率输出与递增测试中获得的峰值功率输出之间的关系,此外,还要验证将2000米平均功率用作与最大摄氧量相关强度的可能性。

方法

19名赛艇运动员(年龄25.5±10.6岁;峰值摄氧量:65.4±5.8毫升/千克/分钟)完成了递增测试,随后进行了2000米适应性测试(第1天)和2000米划船测功仪测试(第2天)。在递增测试期间,确定峰值功率输出(PV̇O2peak)和运动强度阈值。在两项测试中均分析了最大摄氧量(V̇O2peak)。

结果

PV̇O2peak(284.8±44.7瓦)与2000米平均功率(284.2±49.9瓦)呈现出最高的相关系数(r = 0.978),并且是逐步回归中唯一包含的变量,可解释2000米平均功率的96%。递增测试中的V̇O2peak(4.69±0.61升/分钟)低于2000米划船测功仪测试中的V̇O2peak(4.86±0.63升/分钟;P = 0.01),一致性偏差较小(0.16±0.53升/分钟)。

结论

2000米平均功率是估计PV̇O2peak并实现V̇O2peak的有效工具。此外,PV̇O2peak是成绩最重要的预测指标。

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