Drozd Miłosz, Jarosz Jakub, Gepfert Mariola, Turpin Jose Antonio Perez, Zając Adam, Spieszny Michał, Michalska Justyna
Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland.
Department of Sports Theory, The Jerzy Kukuczka Academy of Physical Education, Sports Training Facility, Katowice, Poland.
Sci Rep. 2025 May 9;15(1):16231. doi: 10.1038/s41598-025-00106-2.
The study aimed to compare the effectiveness of two resistance training load progression methods-linear and step-on peak torque and power of knee extensors and flexors during the preseason of a Polish First League soccer team across two seasons. Differences between dominant and non-dominant limbs were analyzed, with progression tracked by tempo of movement and time under tension. Velocity-based training with a linear transducer ensured standardized intensity. Sixteen players from the same club participated in both seasons: 2021/2022 (linear) and 2022/2023 (step). Three-way ANOVA showed a significant leg × training × mesocycle interaction in the knee extensor and flexor peak torque. The post hoc test showed significant differences in peak torque between the dominant and nondominant legs during both progressive load methods - 2021/2022 and 2022/2023 seasons, both before and after the training intervention (p < 0.05). Knee extensors: The dominant leg showed higher values compared to the non-dominant leg. However, there were no significant differences during the 2022/2023 season (p > 0.05). Knee flexors: No difference in peak torque values between the dominant and non-dominant legs before the training intervention - 2022/2023 season. The conducted studies clearly indicate a greater effectiveness of the step load progression, however it also significantly affected bilateral asymmetry.
该研究旨在比较两种阻力训练负荷递增方法的有效性——线性递增和阶梯式递增，研究对象为一支波兰甲级足球队在两个赛季季前赛期间股四头肌和股二头肌的峰值扭矩和功率。分析优势侧和非优势侧肢体之间的差异，并通过运动节奏和受力时间来跟踪负荷递增情况。使用线性传感器的基于速度的训练确保了强度的标准化。来自同一俱乐部的16名球员参加了两个赛季的训练：2021/2022赛季（线性递增）和2022/2023赛季（阶梯式递增）。三因素方差分析显示，股四头肌和股二头肌的峰值扭矩存在显著的腿部×训练×中周期交互作用。事后检验显示，在两种渐进负荷方法（2021/2022赛季和2022/2023赛季）中，训练干预前后优势腿和非优势腿之间的峰值扭矩均存在显著差异（p < 0.05）。股四头肌：优势腿的值高于非优势腿。然而，在2022/2023赛季期间没有显著差异（p > 0.05）。股二头肌：在2022/2023赛季训练干预前，优势腿和非优势腿之间的峰值扭矩值没有差异。所进行的研究清楚地表明阶梯式负荷递增更有效，但它也显著影响了双侧不对称性。
