Castillo-Rodríguez Alfonso, González-Téllez José Luis, Figueiredo Antonio, Chinchilla-Minguet José Luis, Onetti-Onetti Wanesa
Department of Physical Education and Sports, University of Granada, Granada, Spain.
Research Unit for Sport and Physical Activity, Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal.
BMC Sports Sci Med Rehabil. 2023 Mar 16;15(1):33. doi: 10.1186/s13102-023-00641-3.
Non-starters soccer players have a great role within the team, being indispensable to reduce fatigue, as well as to maintain and increase the team's performance during the match.
This study aimed to analyze the physical performance of the starter and non-starters players during competitive soccer matches.
Twenty-two soccer players participated in this study, divided into two groups according to the role in the match (starters or non-starters). WIMU Global Positioning System devices were used in order to record physical performance metrics. Independent samples t-test and one-way ANOVA tests were performed to compare starters and non-starters, and the playing position, respectively, and two-way ANOVA test was perform with these factors too.
There were no differences in the main physical performance metrics between starters and non-starters players during competition, although there were differences in physical performance metrics according to the playing position. Midfielders performed highest distance per minute, player load, and distance covered between 12 and 21 km·h (p < .05). Finally, distance covered at speeds greater than 24 km·h was predicted by the playing role (starters and non-starters) and playing position factors with 88% of explained variance (η = 0.772).
The main findings of this study showed that non-starter players had a similar physical performance during competitive matches as the starter players for whom they are substituted. In addition, the playing position determined different physical performance, contributing in this manuscript that behavior and decision-making of the players could be affected by their position in the field. More studies are needed on non-starter player performance and contextual factors that could influence the physical responses of these players.
非首发足球运动员在球队中发挥着重要作用，对于减轻疲劳以及在比赛期间维持和提高球队表现不可或缺。
本研究旨在分析在足球比赛中首发球员和非首发球员的身体表现。
22名足球运动员参与了本研究，根据在比赛中的角色（首发或非首发）分为两组。使用WIMU全球定位系统设备记录身体表现指标。分别进行独立样本t检验和单因素方差分析以比较首发球员和非首发球员以及比赛位置，同时也对这些因素进行双因素方差分析。
比赛期间首发球员和非首发球员的主要身体表现指标没有差异，尽管根据比赛位置身体表现指标存在差异。中场球员每分钟的跑动距离、球员负荷以及在12至21公里/小时之间的跑动距离最高（p < 0.05）。最后，大于24公里/小时速度下的跑动距离可由比赛角色（首发和非首发）和比赛位置因素预测，解释方差为88%（η = 0.772）。
本研究的主要发现表明，非首发球员在比赛中的身体表现与他们所替换的首发球员相似。此外，比赛位置决定了不同的身体表现，这表明球员的行为和决策可能会受到他们在球场上位置的影响。需要对非首发球员的表现以及可能影响这些球员身体反应的情境因素进行更多研究。
