Department of Sport, Health and Exercise Science, University of Hull, Hull, UK.
Glasgow Rangers Football Club, Glasgow, UK.
Sci Med Footb. 2022 Aug;6(3):295-308. doi: 10.1080/24733938.2021.2013522. Epub 2021 Dec 19.
The aim of this study was to examine the effect of bio-banding on technical and tactical markers of talent identification in 11- to 14-year-old academy soccer players.
Using a repeated measures design, 92 players were bio-banded using percentage of estimated adult stature attainment (week 1), maturity-offset (week 2) and a mixed-maturity method (week 3). All players contested five maturity (mis)matched small-sided games with technical and tactical variables measured. Data were analysed using a series of Bayesian hierarchical models, fitted with different response distributions and different random and fixed effect structures.
Despite differences during maturity-matched bio-banding for post-peak height velocity players, very few tactical differences were evident during the remaining maturity-matched and mis-matched fixtures for both banding methods. In fact, the results showed no consistent differences across both banding methods for practitioner and video analysis-derived technical performance characteristics during maturity matched and mis-matched fixtures. Both bio-banding methods explained similar levels of variance across the measured variables.
Maturity-matched bio-banding had some effect on both technical and tactical characteristics of players during maturity-matched bio-banded formats. That said, this trend remained during maturity mis-matched bio-banded formats which restricts the conclusions that can be made regarding the effectiveness of bio-banding to manipulate technical and tactical measures in academy soccer players.
本研究旨在探讨生物带分组对 11-14 岁学院足球运动员技术和战术特征的识别效果。
采用重复测量设计,92 名球员根据预估成人身高达成百分比(第 1 周)、成熟度偏移(第 2 周)和混合成熟度方法(第 3 周)进行生物带分组。所有球员都参加了五场成熟度(不)匹配的小场比赛,测量了技术和战术变量。使用一系列贝叶斯层次模型进行数据分析,拟合不同的响应分布和不同的随机和固定效应结构。
尽管在成熟匹配的生物带分组中,身高突增后球员存在差异,但在两种分组方法的剩余成熟匹配和不匹配比赛中,战术差异很少。实际上,结果表明,在成熟匹配和不匹配的比赛中,对于两种分组方法,基于实践和视频分析的技术表现特征,没有一致的差异。两种生物带分组方法在测量变量上解释了相似水平的方差。
成熟匹配的生物带分组对成熟匹配的生物带分组格式中球员的技术和战术特征有一定影响。也就是说,这种趋势在成熟不匹配的生物带分组格式中仍然存在,这限制了对生物带分组操纵学院足球运动员技术和战术措施的有效性的结论。