This study analyses the influence of different area per player (A_P; 75, 98 and 131 m²) on the average metabolic power (MP) and other soccer-related performance variables in relation to the positional roles. We recruited 19 non-professional male soccer players (25.2 ± 6.3 y; 23.7 ± 2.3 kg/m²; 16.4 ± 6.3 y soccer experience) to play three different small-sided games (SSGs): SSG1 (5 vs. 5; 30 × 30 m; 5 min), SSG2 (5 vs. 5; 35 × 45 m; 5 min) and SSG3 (7 vs. 7; 35 × 45 m; 8 min). Specific playing rules were applied. GPS-assessed soccer-related variables were: average MP (AMP), distance covered in 1 min (DIS); % time spent at high speed (v > 16 km/h; % hst) or MP (>20 W/kg; % hmpt); % distance covered at high positive/negative speed (2 < v < 4 m/s², % ACC; −6 < v < −2 m/s², % DEC); and number of actions at high MP (hmpa). All recorded variables differed when each SSG was compared to the others (p < 0.05), but for hmpa for attackers. Most performance variables were positively associated with increasing A_P (p < 0.05), but for % ACC and % DEC, and differed among positional roles within the same SSG (p < 0.05). Here the general applicability of SSGs, regardless the physical/technical skills of the group of players, to enhance performance is confirmed; furthermore, quantitative advices on AMP and other performance variables are provided to achieve significant improvements in all soccer players of the team.

中文翻译：

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非职业足球运动员人均面积的影响：一项以位置角色为重点的试点研究

本研究分析了每个球员的不同区域（_AP；75、98 和 131 m ²）对平均代谢能力 (MP) 和其他与位置角色相关的足球相关表现变量的影响。我们招募了 19 名非职业男子足球运动员（25.2 ± 6.3 岁；23.7 ± 2.3 kg/m ²；16.4 ± 6.3 岁足球经验）参加三种不同的小场比赛 (SSG)：SSG1（​​5 对 5；30 × 30 m；5 分钟）、SSG2（5 对 5；35 × 45 m；5 分钟）和 SSG3（7 对 7；35 × 45 m；8 分钟）。应用了特定的游戏规则。GPS 评估的足球相关变量是：平均 MP (AMP)、1 分钟内覆盖的距离 (DIS)；在高速（v > 16 km/h；% hst）或 MP（>20 W/kg；% hmpt）下花费的时间百分比；% 以高正/负速度覆盖的距离 (2 < v < 4 m/s ², % ACC; -6 < v < -2 m/s ² , % DEC)；和高 MP (hmpa) 的操作次数。当每个 SSG 与其他 SSG 进行比较时，所有记录的变量都不同（p < 0.05），但对于攻击者的 hmpa。大多数绩效变量与增加的 A _P呈正相关（p < 0.05），但对于 % ACC 和 % DEC，并且在同一 SSG 内的位置角色之间存在差异（p < 0.05）。这里确认了 SSG 的普遍适用性，无论该组球员的身体/技术技能如何，都可以提高表现；此外，还提供了关于 AMP 和其他性能变量的定量建议，以实现团队所有足球运动员的显着改进。