Human Performance Research Centre, School of Sport, Exercise and Rehabilitation, Faculty of Health, University of Technology Sydney, Sydney, Australia.
High Performance Department, Rugby Australia, Rugby, Australia.
J Sports Sci. 2021 Oct;39(19):2232-2241. doi: 10.1080/02640414.2021.1928408. Epub 2021 May 18.
Despite advancements in the scale of data available for quantifying the physical and spatiotemporal characteristics of match play, there is an absence of research combining these aspects in professional sport. This study sought to differentiate between phases of play in professional Australian football using novel physical and spatiotemporal metrics. Data was obtained from Australian Football League games to provide new insight into the specific characteristics of each phase of play. A retrospective cross-sectional design was utilised with team's physical and spatiotemporal variables, measured via global navigation satellite system devices. A multinomial logistic regression was conducted to determine which physical and spatiotemporal measures were associated with each phase of play (contested play, defence, offence, set shot, goal reset, umpire stoppage). The addition of the predictors to a model that contained only the intercept significantly improved the fit between the model and data, with the logistic model correctly predicting the phase of play for 63.7% of the cases. This was the first study to concurrently examine differences in physical and spatiotemporal characteristics with respect to phase of play in an Australian football context. Differences in duration, physical and spatiotemporal properties were observed, providing new insight for coaches and subsequently providing direction for conditioning and practice design.
尽管在可用于量化比赛中身体和时空特征的规模方面取得了进展，但在专业运动中，仍然缺乏将这些方面结合起来的研究。本研究旨在使用新的身体和时空指标来区分职业澳式足球比赛中的各个阶段。数据来自澳式足球联赛比赛，为每个比赛阶段的具体特征提供了新的见解。采用回顾性的横截面设计，利用全球导航卫星系统设备测量球队的身体和时空变量。采用多项逻辑回归来确定哪些身体和时空指标与比赛的各个阶段（争球、防守、进攻、定位球、重置球门、裁判暂停）有关。将预测因子添加到仅包含截距的模型中，显著提高了模型与数据之间的拟合度，逻辑模型正确预测了 63.7%案例的比赛阶段。这是第一项在澳式足球背景下同时检查身体和时空特征与比赛阶段差异的研究。观察到持续时间、身体和时空特性的差异，为教练提供了新的见解，并为训练和实践设计提供了方向。
