Sport & Exercise Discipline Group, Faculty of Health, University of Technology Sydney (UTS), Australia; Carlton Football Club, Australia.
Sport & Exercise Discipline Group, Faculty of Health, University of Technology Sydney (UTS), Australia; Carlton Football Club, Australia; School of Exercise Science, Australian Catholic University, Australia.
J Sci Med Sport. 2018 Mar;21(3):317-321. doi: 10.1016/j.jsams.2017.06.008. Epub 2017 Jun 8.
To examine the effects of match-related and individual player characteristics on activity profile and technical performance during rotations in professional Australian football.
Longitudinal observational study.
Global positioning system data and player rating scores were collected from 33 professional Australian football players during 15 Australian football League matches. Player rating scores were time aligned with their relative total and high-speed running (HSR) distance (>20kmh) for each on ground rotation. Individual players' maximal aerobic running speed (MAS) was determined from a two-kilometre trial. A multilevel linear mixed model was used to examine the influence of rotations on physical activity profiles and skill execution during match play.
Rotation duration and accumulated distance resulted in a trivial-to-moderate reduction in relative total and HSR distances as well as relative rating points. The number of disposals in a rotation had a small positive effect on relative total and HSR distances and a large positive effect on relative rating points. MAS was associated with a moderate-to-large increase in relative total distance, but had a large negative effect on relative rating points. Previous rotation time, stoppages and the number of rotations in the quarter had a trivial-to-small negative effect on relative total and HSR distances. A greater speed (mmin) was associated with a trivial increase in rating points during a rotation, while there was a trivial decrease in relative total distance as rating points increased.
The complex relationship between factors that influence activity profile and technical performance during rotations in Australian football needs to be considered when interpreting match performance.
研究与比赛相关的因素和个体运动员特征对澳大利亚职业足球运动员轮转过程中的活动特征和技术表现的影响。
纵向观察性研究。
从 33 名职业澳大利亚足球运动员的 15 场澳大利亚足球联赛中收集了全球定位系统数据和球员评级得分。球员评级得分与他们在地面轮转中的相对总跑动距离（>20km/h）和高速跑动（HSR）距离（>20km/h）时间对齐。个体运动员的最大有氧跑动速度（MAS）是通过两公里测试确定的。使用多级线性混合模型来研究轮转对比赛中身体活动特征和技能执行的影响。
轮转持续时间和累计距离导致相对总跑动距离和 HSR 距离以及相对评级点数出现轻微到中度的减少。一轮中的传球次数对相对总跑动距离和 HSR 距离有较小的正影响，对相对评级点数有较大的正影响。MAS 与相对总距离的中度到较大增加有关，但对相对评级点数有较大的负影响。前一轮的时间、停赛次数和该节的轮转次数对相对总跑动距离和 HSR 距离有轻微到小的负影响。速度（mmin）每增加 1 会导致评级点数在一轮中略有增加，而随着评级点数的增加，相对总距离会略有减少。
在解释比赛表现时，需要考虑影响澳大利亚足球轮转过程中活动特征和技术表现的因素之间的复杂关系。
