Rejman Marek, Szkudlarek Paweł
Department of Swimming, Wroclaw University of Sport and Health Sciences, 51-612 Wroclaw, Poland.
Methods Protoc. 2025 Feb 17;8(1):19. doi: 10.3390/mps8010019.
This study explores the application of the Least Squares Method to analyze and model the kinematic parameters in monofin swimming, focusing on stroke rate, stroke length, and the amplitudes of joint displacements at the hip, knee, and ankle. The primary aim is to evaluate whether this method provides an objective and diagnostic tool for assessing monofin swimming techniques. Three elite monofin swimmers were evaluated under a progressive fatigue test. Results indicated that the stroke rate increases velocity by 0.95, 0.23, and 0.96 units (for the estimated models respectively). Optimized stroke length (0.01-0.12 units) also significantly correlates with velocity improvements. Joint amplitude reductions, particularly at the hip and ankle, enhanced propulsion by minimizing drag. This study highlights the Least Squares Method as a diagnostic tool for optimizing swimming techniques, with potential applications in performance training.
本研究探讨了最小二乘法在分析和模拟单鳍游泳运动学参数中的应用，重点关注划水频率、划水长度以及髋、膝和踝关节处关节位移的幅度。主要目的是评估该方法是否能为评估单鳍游泳技术提供一种客观的诊断工具。对三名优秀的单鳍游泳运动员进行了渐进性疲劳测试。结果表明，划水频率分别使速度提高了0.95、0.23和0.96个单位（针对估计模型）。优化后的划水长度（0.01 - 0.12个单位）也与速度提升显著相关。关节幅度的减小，尤其是髋部和踝部，通过最小化阻力增强了推进力。本研究强调了最小二乘法作为优化游泳技术的诊断工具，在体能训练中具有潜在应用价值。
