Delaney Jace A, Thornton Heidi R, Burgess Darren J, Dascombe Ben J, Duthie Grant M
Newcastle Knights Rugby League Club, Australia; Institute of Sport Exercise and Active Living, Victoria University, Footscray Campus,Australia.
Newcastle Knights Rugby League Club, Australia; La Trobe Sport and Exercise Medicine Research Centre, La Trobe University Bundoora Campus, Australia.
J Sci Med Sport. 2017 Jul;20(7):689-694. doi: 10.1016/j.jsams.2016.11.009. Epub 2017 Jan 23.
To establish the position and duration-specific running demands of Australian Football (AF) competition for the prescription and monitoring of specific training drills.
An observational time-motion analysis was performed on 40 professional AF players during 30 games throughout the 2014-15 competitive seasons.
Player movements were collected and peak values were calculated for moving averages of between 1-10min in duration for relative distance (mmin), high-speed relative distance (HSmmin), average acceleration/deceleration (ms) and metabolic power (P). A mixed-model analysis was used to detect positional differences, and differences were described using a magnitude-based network.
Relative distance was likely greater for midfielders (MID), and mobile forwards (MF) compared to tall backs (TB) across all moving average durations assessed, with MF peaking at 223±35mmin for a 1-min window. High-speed relative distance was at least likely to be greater for MF compared to all other positions, across all moving average durations (ES=0.27-0.94). Acceleration/deceleration demands were similar across positions.
The present study demonstrated that the peak running intensities of AF are well above previously reported peak intensities when considering the distance-based running requirements of match-play. Whilst the acceleration-based metric was unable to detect large differences between positions, it is important to note their contribution to the overall competition demands. This study presents a useful framework for the prescription and monitoring of drills specific to AF competition requirements.
确定澳大利亚式足球(AF)比赛中特定位置和时间段的跑步需求,以便为特定训练项目的制定和监测提供依据。
在2014 - 15赛季的30场比赛中,对40名职业AF球员进行了观察性时间动作分析。
收集球员的运动数据,计算相对距离(米/分钟)、高速相对距离(高速米/分钟)、平均加速度/减速度(米/秒)和代谢功率(P)在1 - 10分钟时长内移动平均值的峰值。采用混合模型分析来检测位置差异,并使用基于量级的网络描述差异。
在所有评估的移动平均时长内,中场球员(MID)和灵活前锋(MF)的相对距离可能比高大后卫(TB)更大,MF在1分钟窗口内的峰值为223±35米/分钟。在所有移动平均时长内,MF的高速相对距离至少可能比所有其他位置更大(效应量=0.27 - 0.94)。各位置的加速度/减速度需求相似。
本研究表明,考虑到比赛中基于距离的跑步要求,AF的峰值跑步强度远高于先前报道的峰值强度。虽然基于加速度的指标无法检测出各位置之间的巨大差异,但重要的是要注意它们对整体比赛需求的贡献。本研究为根据AF比赛要求制定和监测特定训练项目提供了一个有用的框架。