School of Sport, Performing Arts and Leisure, University of Wolverhampton, Walsall, West Midlands, UK.
Scand J Med Sci Sports. 2010 Feb;20(1):122-7. doi: 10.1111/j.1600-0838.2008.00874.x. Epub 2009 Feb 2.
We investigated whether the concept II indoor rowing ergometer accurately reflects rowing on water. Forty-nine junior elite male rowers from a Great Britain training camp completed a 2000 m concept II model C indoor rowing ergometer test and a water-based 2000 m single-scull rowing test. Rowing speed in water (3.66 m/s) was significantly slower than laboratory-based rowing performance (4.96 m/s). The relationship between the two rowing performances was found to be R2=28.9% (r=0.538). We identified that body mass (m) made a positive contribution to concept II rowing ergometer performance (r=0.68, P<0.001) but only a small, non-significant contribution to single-scull water rowing performance (r=0.039, P=0.79). The contribution that m made to single-scull rowing in addition to ergometer rowing speed (using allometric modeling) was found to be negative (P<0.001), confirming that m has a significant drag effect on water rowing speed. The optimal allometric model to predict single-scull rowing speed was the ratio (ergometer speed xm(-0.23))1.87 that increased R2 from 28.2% to 59.2%. Simply by dividing the concept II rowing ergometer speed by body mass (m0.23), the resulting "power-to-weight" ratio (ergometer speed xm(-0.23)) improves the ability of the concept II rowing performance to reflect rowing on water.
我们研究了概念 II 室内划船测功仪是否能准确反映水上划船情况。来自英国训练营的 49 名初级精英男划船运动员完成了 2000 米概念 II 型 C 室内划船测功仪测试和水上 2000 米单人单桨划船测试。水中划船速度（3.66 米/秒）明显慢于实验室划船性能（4.96 米/秒）。发现两种划船性能之间的关系为 R2=28.9%（r=0.538）。我们发现，体重（m）对概念 II 划船测功仪性能有积极贡献（r=0.68，P<0.001），但对单人单桨水上划船性能只有较小的、无显著贡献（r=0.039，P=0.79）。从所有ometric 建模来看，m 对单人单桨划船的贡献除了测功仪划船速度之外是负的（P<0.001），这证实了 m 对水划船速度有显著的阻力效应。预测单人单桨划船速度的最佳所有ometric 模型是比例（测功仪速度 xm(-0.23))1.87，它将 R2 从 28.2%提高到 59.2%。只需将概念 II 划船测功仪速度除以体重（m0.23），得到的“功率/重量”比（测功仪速度 xm(-0.23))就能提高概念 II 划船性能反映水上划船的能力。
