This study aimed to evaluate the effects playing position, match location (home or away), quality of opposition (strong or weak), effective playing time (total time minus stoppages), and score-line on physical match performance in professional soccer players using a large-scale analysis. A total of 10,739 individual match observations of outfield players competing in the Spanish La Liga during the 2018–2019 season were recorded using a computerized tracking system (TRACAB, Chyronhego, New York, USA). The players were classified into five positions (central defenders, players = 94; external defenders, players = 82; central midfielders, players = 101; external midfielders, players = 72; and forwards, players = 67) and the following match running performance categories were considered: total distance covered, low-speed running (LSR) distance (0–14 km · h⁻¹), medium-speed running (MSR) distance (14–21 km · h⁻¹), high-speed running (HSR) distance (>21 km · h⁻¹), very HSR (VHSR) distance (21–24 km · h⁻¹), sprint distance (>24 km · h⁻¹) Overall, match running performance was highly dependent on situational variables, especially the score-line condition (winning, drawing, losing). Moreover, the score-line affected players running performance differently depending on their playing position. Losing status increased the total distance and the distance covered at MSR, HSR, VHSR and Sprint by defenders, while attacking players showed the opposite trend. These findings may help coaches and managers to better understand the effects of situational variables on physical performance in La Liga and could be used to develop a model for predicting the physical activity profile in competition.

这项研究旨在评估职业足球运动员在以下情况下的比赛位置，比赛位置（主场或客场），对垒质量（强或弱），有效比赛时间（总时间减去停球时间）和得分线的影响。大规模分析。使用计算机跟踪系统（TRACAB，Chyronhego，纽约，美国）记录了2018-2019赛季在西班牙西甲联赛中比赛的外场球员的总计10739场比赛观察。球员分为五个位置（中央后卫，球员= 94；外部后卫，球员= 82；中央中场，球员= 101；外部中场，球员= 72；前锋，球员= 67），以及以下比赛的跑步表现类别被认为：覆盖的总距离，^-1），中速行驶（MSR）距离（14–21 km·h ^-1），高速行驶（HSR）距离（> 21 km·h ^-1），极高HSR（VHSR）距离（21– 24 km·h ^-1），短跑距离（> 24 km·h ^-1）总体而言，比赛的表现在很大程度上取决于情境变量，尤其是得分线条件（赢，输，输）。此外，得分线会影响球员的比赛表现，具体取决于他们的比赛位置。失去状态增加了总距离，并且防守者在MSR，HSR，VHSR和Sprint上的距离有所增加，而进攻球员则表现出相反的趋势。这些发现可以帮助教练和管理人员更好地了解情境变量对西甲身体机能的影响，并可用于开发模型来预测比赛中的身体活动情况。