Rábano-Muñoz Alberto, Asian-Clemente Jose, Sáez de Villarreal Eduardo, Nayler Jack, Requena Bernardo
Football Science Institute, Granada 18001, Spain.
Physical Performance Sports Research Center (PPSRC), Universidad Pablo de Olavide, Sevilla 41013, Spain.
Sports (Basel). 2019 Apr 2;7(4):79. doi: 10.3390/sports7040079.
The purpose of this study was to compare the physical and physiological demands of a small-sided game (SSG) in three different age groups (senior, under-19 [U-19] and under-17 [U-17]) belonging to the same academy. A further aim was to contrast the physical and physiological profiles of normal and floater players during this task. Thirty male football players performed a 4 vs. 4 + 2 floaters on a playing field of 40 by 30m for four bouts of 4 min with 2 min of passive recovery. In addition to heart rate (mean and maximal), a GPS (Global Positioning System) system was used to record the distances covered at different speeds, the number of accelerations and decelerations, and the work/rest ratio (W:R Ratio). Analysis of the data showed that the demands of the SSGs are determined by the age of the players and that the regular players have greater demands than floater players in the SSGs utilized. These results suggest that the coaches should pay attention to the promotion of players to superior teams because there are physical differences between them (especially the U-17 to U-19 teams). Likewise, coaches should understand that floaters are a useful tool for regulating the training load of players and programming the return-to-play process, as floater players experience lower demands than normal players.
本研究的目的是比较同一足球学院中三个不同年龄组（成年组、19岁以下[U-19]组和17岁以下[U-17]组）进行小场地比赛（SSG）时的身体和生理需求。另一个目的是对比在这项任务中常规球员和流动球员的身体和生理状况。30名男性足球运动员在40米×30米的场地上进行了4对4 + 2名流动球员的比赛，共进行四组，每组4分钟，每组之间有2分钟的被动恢复时间。除了心率（平均值和最大值）外，还使用了全球定位系统（GPS）来记录不同速度下的跑动距离、加速和减速次数以及工作/休息比（W:R比）。数据分析表明，小场地比赛的需求由球员年龄决定，并且在所采用的小场地比赛中，常规球员比流动球员的需求更大。这些结果表明，教练应注意将球员提升到更高级别的球队，因为他们之间存在身体差异（特别是U-17到U-19组球队）。同样，教练应明白流动球员是调节球员训练负荷和规划复出过程的有用工具，因为流动球员比常规球员的需求更低。
