Goto Heita, Morris John G, Nevill Mary E
Institute of Youth Sport, School of Sport, Exercise and Health Sciences, Loughborough University, Leicestershire, United Kingdom.
J Strength Cond Res. 2015 Apr;29(4):954-63. doi: 10.1519/JSC.0b013e3182a0d751.
The purpose of this study was to examine the match activity profile of U9 and U10 elite soccer players and to establish if there were any differences between players who were subsequently retained or released by their clubs. Such information should prove valuable in the design of training programs for these very young players and in the talent identification and development process. A Global Positioning System was used to analyze 2-4 interacademy 6-a-side matches of English Premier League Academy players (U9: N = 22 and U10: N = 12) who trained 3 times a week (4.5 hours). Speed zones were created based on 5 and 10-m sprint times, and an independent sample t-test was employed for a statistical analysis. Both squads covered ∼4,000 m in total or ∼4,700 m·h during a match (p = NS between squads), with the U10 squad tending to cover a greater distance at moderate (p = 0.10) and high speeds (p = 0.08) than the U9 squad. Retained group covered a greater distance than released group (retained vs. released: 4,478 ± 513 m vs. 4,091 ± 462 m, p < 0.05) during a match and covered a greater distance during low-speed running in absolute (1,226 ± 259 m vs. 1,005 ± 221 m, p < 0.05) and relative (1,325 ± 235 m·h vs. 1,132 ± 210 m·h, p < 0.05) terms. Thus, U9 and U10 players cover over 4000 m in match play, and those players who are retained by academies cover a greater distance in total and at low speeds (2.1-3.1 m·s). This information may support the preparation of squad training programs and the talent identification and development process.
本研究旨在考察9岁和10岁精英足球运动员的比赛活动概况,并确定随后被俱乐部留用或解约的球员之间是否存在差异。这些信息对于为这些非常年轻的球员设计训练计划以及人才识别与发展过程应具有重要价值。使用全球定位系统分析了英超联赛青训学院球员(9岁组:N = 22;10岁组:N = 12)的2至4场6人制校际比赛,这些球员每周训练3次(4.5小时)。根据5米和10米短跑时间划分速度区间,并采用独立样本t检验进行统计分析。两个球队在一场比赛中的总跑动距离约为4000米或约4700米·小时(两队之间p =无显著性差异),10岁组球队在中等速度(p = 0.10)和高速(p = 0.08)时的跑动距离往往比9岁组球队更远。在一场比赛中,留用组的跑动距离比解约组更远(留用组与解约组:4478±513米对4091±462米,p < 0.05),并且在低速跑动时,留用组在绝对距离(1226±259米对1005±221米,p < 0.05)和相对距离(1325±235米·小时对1132±210米·小时,p < 0.05)方面都更远。因此,9岁和10岁的球员在比赛中的跑动距离超过4000米,而被青训学院留用的球员在总距离和低速(2.1 - 3.1米·秒)时的跑动距离更远。这些信息可能有助于制定球队训练计划以及人才识别与发展过程。