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首页> 外文期刊>Scandinavian journal of medicine & science in sports. >Rocking the boat: does perfect rowing crew synchronization reduce detrimental boat movements?
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Rocking the boat: does perfect rowing crew synchronization reduce detrimental boat movements?

机译：摇滚船：完美划船船员是否会同步减少有害的船舶运动？

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摘要

In crew rowing, crew members need to mutually synchronize their movements to achieve optimal crew performance. Intuitively, poor crew coordination is often deemed to involve additional boat movements such as surge velocity fluctuations, heave, pitch, and roll, which would imply lower efficiency (eg, due to increased hydrodynamic drag). The aim of this study was to investigate this alleged relation between crew coordination and boat movements at different stroke rates. Fifteen crews of two rowers rowed in a double scull (ie, a two‐person boat) at 18, 22, 26, 30, and 34 strokes per minute. Oar angles (using potentiometers) and movements of the boat (using a three‐axial accelerometer‐gyroscope sensor) were measured (200?Hz). Results indicated that crew synchronization became more consistent with stroke rate, while surge, heave, and pitch fluctuations in creased. Further, within each stroke rate condition, better crew synchronization was related to less roll of the boat, but in creased fluctuations regarding surge, heave, and pitch. Together this demonstrates that while better crew synchronization relates to enhanced lateral stability of the boat, it inevitably involves more detrimental boat movements and hence involves lower biomechanical efficiency.
机译：在船员划船中，船员需要相互同步他们的动作以实现最佳的船员性能。直观地，较差的机组协调通常被视为涉及额外的船舶运动，例如浪涌速度波动，升降，沥青和滚动，这意味着较低的效率（例如，由于流体动力学阻力增加）。本研究的目的是调查船员协调和船舶运动的涉嫌关系，不同的笔划率。两个划船器的十五船员，在18,22,26,30和34张每分钟中划出双桨（即两人船）。测量船角（使用电位器）和船的运动（使用三轴加速度计 - 陀螺仪传感器）（200≤Hz）。结果表明，船员同步与行程速率变得更加一致，而涌现，升降，褶皱和俯仰波动。此外，在每个行程速率条件下，更好的船员同步与船的较少卷有关，但在潮涌，升降和间距的削波波动中有关。这表明，虽然更好的船员同步涉及船的增强横向稳定性，但它不可避免地涉及更有害的船移动，因此涉及更低的生物力学效率。

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