School of Human Movement and Nutrition Sciences, University of Queensland, Brisbane, Australia.
Performance Science Department, Brisbane Broncos Rugby League Club, Brisbane, Australia.
J Strength Cond Res. 2024 Sep 1;38(9):1620-1626. doi: 10.1519/JSC.0000000000004842. Epub 2024 Jul 23.
Redman, KJ, Wade, L, Whitley, R, Connick, MJ, Kelly, VG, and Beckman, EM. Seasonal muscular power changes: considerations of concurrent resistance and field-based training in professional rugby league. J Strength Cond Res 38(9): 1620-1626, 2024-A rugby league player's ability to develop or maintain lower-body power will be significantly influenced by the resistance and field-based training loads completed. This study aimed to examine the power changes across a rugby league season and to investigate the relationship of concurrent training and training experience on power changes. Eighteen rugby league players participated in this study. Lower-body power was evaluated using a countermovement jump throughout the season. Four measures of external training loads were collected. A Friedman's test was used to assess differences in power throughout different phases of the season. A series of Spearman's rank-order correlations were conducted to assess the relationship between percentage changes in power during the training block, external training loads, and training experience. Countermovement jump peak velocity significantly decreased from the start ( p = 0.006) and end of pre-season ( p = 0.022) to the late competition. Correlation analysis revealed a large significant association between early competition field-based external loads (relative ( rs = -0.571) and total distance ( rs = -0.628)) and change in peak power. Very large significant negative relationships were also observed between mid-competition volume load with change in peak force ( rs = -0.825) and peak power ( rs = -0.736). Training experience was not significantly associated with changes in muscular power variables throughout this study. Coaches should seek to monitor changes in peak power when competition begins and to assist with decision-making for potential adjustments to running volume and intensity during field-based sessions.
雷德曼，KJ，韦德，L，惠特利，R，康尼克，MJ，凯利，VG，和贝克曼，EM。季节性肌肉力量变化：职业橄榄球联赛中同时考虑阻力和基于场地的训练。J 强 2024 年 研究人员认为，橄榄球运动员发展或维持下肢力量的能力将受到完成的阻力和基于场地的训练负荷的显著影响。本研究旨在检查橄榄球联赛赛季中的力量变化，并研究同时训练和训练经验对力量变化的关系。18 名橄榄球运动员参与了这项研究。使用反跳测试在整个赛季评估下肢力量。收集了四个外部训练负荷指标。采用 Friedman 检验评估不同阶段的力量差异赛季。进行了一系列 Spearman 等级相关分析，以评估训练块期间力量变化与外部训练负荷和训练经验之间的关系。从开始（p=0.006）和结束（p=0.022）的预季到后期比赛，反跳峰值速度显著下降。相关分析显示，早期比赛中基于场地的外部负荷（相对（rs=-0.571）和总距离（rs=-0.628））与峰值功率的变化之间存在很大的显著关联。还观察到中期比赛中负荷与峰值力（rs=-0.825）和峰值功率（rs=-0.736）变化之间存在非常大的显著负相关。在整个研究过程中，训练经验与肌肉力量变量的变化没有显著关联。教练应该在比赛开始时注意峰值功率的变化，并协助做出决策，以在基于场地的训练中对跑步量和强度进行潜在调整。
