Duchene Youri, Simon Frédéric R, Ertel Geoffrey N, Maciejewski Hugo, Gauchard Gérome C, Mornieux Guillaume
Université de Lorraine, DevAH, Nancy, France.
Université de Lorraine, CARE Grand Est, Nancy, France.
Sports Biomech. 2025 Jun;24(6):1576-1593. doi: 10.1080/14763141.2024.2301992. Epub 2024 Jan 11.
The aim of this study is to determine the effect of stroke rate on performance, technique and core stability during rowing ergometer. Twenty-four high-level rowers performed maximal intensity one-minute bouts at 20, 28 and 34 spm on a RowPerfect3 ergometer. Power at the handle, legs, trunk and arms levels were determined, and core kinematics and neuromuscular activations were measured. The power at the handle was enhanced with a higher stroke rate in the first half of the drive phase due to higher segment's powers. This resulted in technical changes, as for instance greater mean to peak power ratio at each segment level. The higher trunk power preceded a delayed trunk extension but without significant increase in the erector spinae activation. This underlines the role of the core stability to transfer forces at a higher stroke rate. However, no co-activation parameters between trunk flexors and extensors helped further to understand this force transfer. Rowing at low stroke rate can be a training strategy to work on earlier trunk extension, while maintaining erectors spinae levels of activation. Training at higher stroke rate will induce a rowing technique closer to competition with greater neuromuscular activations, and maximise power production.
本研究的目的是确定划桨频率对划船测功仪运动表现、技术和核心稳定性的影响。24名高水平赛艇运动员在RowPerfect3测功仪上以每分钟20、28和34桨频进行最大强度的一分钟测试。测定了桨柄、腿部、躯干和手臂水平的功率，并测量了核心运动学和神经肌肉激活情况。在划桨驱动阶段的前半段，由于各节段功率较高，桨柄处的功率随着划桨频率的提高而增强。这导致了技术上的变化，例如在每个节段水平上平均功率与峰值功率的比值更大。较高的躯干功率先于躯干伸展延迟，但竖脊肌激活没有显著增加。这突出了核心稳定性在更高划桨频率下传递力量的作用。然而，躯干屈肌和伸肌之间的共激活参数无助于进一步理解这种力量传递。以低划桨频率划船可以作为一种训练策略，在保持竖脊肌激活水平的同时，致力于更早的躯干伸展。以更高划桨频率训练将诱导更接近比赛的划船技术，具有更大的神经肌肉激活，并使功率输出最大化。
