Related Data for: Stroke characteristics in sprint kayaking – How does seat order influence synchronization in a K2 crew boat?

The purpose of this study was to investigate the how seat order in a two-seater (K2) crew boat could influence the performance time and stroke synchronization during high intensity sprint kayaking. Sixteen national team sprint kayakers formed eight K2 crews based on preference. Each crew performed two 200 m segments at high intensity in their preferred order (e.g., Paddler A in front, Paddler B behind), and then the reversed order (i.e., Paddler B in front, Paddler A behind). Video analysis identified stroke synchronization based on a four-position model. Magnitude-based inferences were used for statistical analysis. The preferred seat order was 0.5±1.8 s faster than the reversed seat order but the effect was possibly trivial. As four crews were faster in the reversed seat order, data were also rearranged to compare between the slower and faster trials. The faster trials were 1.5±0.5 s quicker than the slower trials, which was a very likely effect. There was no clear effect of seat order on stroke synchronization between the two paddlers. Since faster timing does not always correspond with the preferred sear order, sprint kayak athletes are recommended to try both possible seat orders in a K2 crew boat rather than relying on preference alone.

本研究旨在探究双人皮划艇（K2）的艇内座位排序对高强度短距离皮划艇冲刺过程中完成时长与划桨同步性的影响。16名国家队短距离皮划艇运动员按照各自偏好组建了8支K2双人艇队伍。每支队伍先以自身偏好的座位顺序（例如，划手A在前、划手B在后）完成两组高强度200米冲刺测试，随后再交换座位顺序（即划手B在前、划手A在后）开展相同测试。研究采用四位置模型，通过视频分析评估划桨同步性。统计分析采用基于效应量的推断方法。结果表明，偏好座位顺序下的完成时长较交换座位顺序组快0.5±1.8秒，但该效应的实际意义可能极微小。由于有4支队伍在交换座位顺序后完成速度更快，因此研究对数据进行了重新整理，对比了速度较慢与较快的测试组。速度较快的测试组较较慢组快1.5±0.5秒，该效应具有较高可信度。座位排序对两名划手之间的划桨同步性无显著影响。鉴于更快的完成时长并不总是与偏好的座位顺序相对应，因此建议K2双人皮划艇队伍的运动员尝试两种可能的座位排序方案，而非仅依赖个人偏好。