1
|
Kelly AL, Williams CA, Jackson DT, Turnnidge J, Reeves MJ, Dugdale JH, Wilson MR. Exploring the role of socioeconomic status and psychological characteristics on talent development in an English soccer academy. SCI MED FOOTBALL 2024; 8:251-259. [PMID: 37161818 DOI: 10.1080/24733938.2023.2213191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/04/2023] [Indexed: 05/11/2023]
Abstract
Social factors and psychological characteristics can influence selection and development in talent pathways. However, the interaction between these two factors is relatively unknown. The aim of this study was to investigate the implications of socioeconomic status and psychological characteristics in English academy soccer players (n = 58; aged 11 to 16 years). To assess socioeconomic status, participants' home postcodes were coded according to each individual's social classification and credit rating, applying the UK General Registrar Classification system and CameoTM geodemographic database, respectively. Participants also completed the six factor Psychological Characteristics for Developing Excellence Questionnaire (PCDEQ). A classification of 'higher-potentials' (n = 19) and 'lower-potentials' (n = 19) were applied through coach potential rankings. Data were standardised using z-scores to eliminate age bias and data were analysed using independent sample t-tests. Results showed that higher-potentials derived from families with significantly lower social classifications (p = 0.014) and reported higher levels for PCDEQ Factor 3 (coping with performance and developmental pressures) (p = 0.007) compared to lower-potentials. This study can be used to support the impetus for researchers and practitioners to consider the role of social factors and psychological characteristics when selecting and developing sporting talent. For example, facilitating player-centred development within an academy and, where necessary, providing individuals with additional support.
Collapse
Affiliation(s)
- Adam L Kelly
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, UK
- College of Life & Environmental Sciences, University of Exeter, Exeter, Devon, UK
- Exeter City Football Club, Exeter, Devon, UK
| | - Craig A Williams
- College of Life & Environmental Sciences, University of Exeter, Exeter, Devon, UK
| | - Daniel T Jackson
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, UK
| | - Jennifer Turnnidge
- School of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada
| | - Matthew J Reeves
- UCLan Research Centre for Applied Sport, Physical Activity & Performance, University of Central Lancashire, Preston, UK
| | - James H Dugdale
- Physiology Exercise and Nutrition Research Group, Faculty of Health Sciences and Sport, University of Stirling, Stirling, UK
| | - Mark R Wilson
- College of Life & Environmental Sciences, University of Exeter, Exeter, Devon, UK
| |
Collapse
|
2
|
Lever JR, Duffield R, Murray A, Bartlett JD, Fullagar HHK. Longitudinal Internal Training Load and Exposure in a High-Performance Basketball Academy. J Strength Cond Res 2024; 38:1464-1471. [PMID: 38662929 DOI: 10.1519/jsc.0000000000004808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
ABSTRACT Lever, JR, Duffield, R, Murray, A, Bartlett, JD, and Fullagar, HHK. Longitudinal internal training load and exposure in a high-performance basketball academy. J Strength Cond Res 38(8): 1464-1471, 2024-This study describes the longitudinal training exposure (session counts) and internal training load (Rating of Perceived Exertion [RPE] and Session Rating of Perceived Exertion [sRPE]) of youth basketball players at a high-performance academy, based on the training year, training term, and playing position. Historical internal training load and training exposure data were collated from 45 male high-performance youth basketball athletes between 2015 and 2019. Data included session duration, RPE, sRPE, training type, and date. Linear mixed models and pairwise comparisons were performed on the weekly means and categorized by training year (year 1, year 2, year 3), term (term 1, term 2, term 3, term 4), and playing position (Backcourt, Frontcourt). Linear mixed models indicate that the individual athlete had the greatest influence on variance in training load and exposure. Significant differences were observed for increased session count, duration, and sRPE ( p < 0.001) in year 2 compared with year 1. These measures also increased within each year whereby term 3 and term 4 ( p < 0.001) were significantly greater than term 1 and term 2. No significant differences were observed between playing position ( p > 0.05). Training exposure and internal training load increase in year 2 from year 1 for high-performance youth basketball academy athletes. Differences between training load and exposure for terms (i.e., training blocks) suggest the phase of season influences training prescription, while playing position has limited effect.
Collapse
Affiliation(s)
- Jonathon R Lever
- School of Sport, Exercise and Rehabilitation, Faculty of Health, University of Technology, Sydney, Australia
- National Basketball Association, New York, New York
- University of Notre Dame, Sports Performance, Notre Dame, Indiana; and
| | - Rob Duffield
- School of Sport, Exercise and Rehabilitation, Faculty of Health, University of Technology, Sydney, Australia
| | | | | | - Hugh H K Fullagar
- School of Sport, Exercise and Rehabilitation, Faculty of Health, University of Technology, Sydney, Australia
- Physical Activity, Physical Education, Sport and Health (PAPESH) Research Center, Department of Sports Science, Reykjavik University, Reykjavik, Iceland
| |
Collapse
|
3
|
Liu G, Wang X, Xu Q. Supervised Offseason Training Programs are able to mitigate the Effects of Detraining in Youth Men Soccer Players Physical Fitness: A Randomized Parallel Controlled Study. J Sports Sci Med 2024; 23:219-227. [PMID: 38455432 PMCID: PMC10915615 DOI: 10.52082/jssm.2024.219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 02/18/2024] [Indexed: 03/09/2024]
Abstract
This study aimed to analyze the effects of three off-season training programs on the aerobic capacity, countermovement jump (CMJ), and linear sprint performance of young male soccer players. The study employed a randomized multi-arm design, consisting of three experimental groups: i) a high-intensity interval training (HIIT) group; (ii) a plyometric jump training (PJT) group; and (iii) a HIIT+PJT group; and an inactive control group. Fifty-eight under-19 male soccer players (aged 17.6 ±0.6 years) were randomly assigned to participate in a 3-week offseason training program exclusively performing HIIT, PJT, or a combination of both, while the fourth group remained inactive. Players underwent assessments twice, using the Yo-Yo Intermittent Recovery Test - Level 1 (YYIRT), CMJ, and 30-meter linear sprint. Significant interactions between time and groups were found in CMJ (p<0.001), YYIRT (p<0.001), and 30-m sprint (p<0.001). Group*time interaction revealed that the control group was significantly different from HIIT (p<0.001), PJT (p<0.001), and HIIT+PJT (p<0.001) considering the CMJ. Moreover, the control group was significantly different from HIIT (p=0.037) in YYIRT. Finally, the control group was significantly different from HIIT (p=0.024), PJT (p<0.001), and HIIT+PJT (p=0.021) considering the 30-m sprint. In conclusion, off-season training programs are effective in significantly reducing declines in CMJ and sprint performance compared to maintaining training cessation. However, in the YYIRT, only HIIT seems to be significantly superior to maintaining inactivity. To mitigate aerobic performance declines, incorporating HIIT sessions twice weekly during the offseason is advisable. To enhance or maintain jump performance, integrating at least one session of PJT weekly is beneficial.
Collapse
Affiliation(s)
- GuiYang Liu
- Physical Education and Health Education, Udon Thani Rajabhat University 64 Thaharn Road, Muang, Udon Thani 41000, Thailand
| | - XiaoShuang Wang
- College of Physical Education, Chizhou University, Chizhou 247000, Anhui, China
| | - Qi Xu
- Gdansk University of Physical Education and Sport, 80-336 Gdańsk, Poland
| |
Collapse
|
4
|
McAuley ABT, Hughes DC, Tsaprouni LG, Varley I, Suraci B, Bradley B, Baker J, Herbert AJ, Kelly AL. Genetic Associations With Acceleration, Change of Direction, Jump Height, and Speed in English Academy Football Players. J Strength Cond Res 2024; 38:350-359. [PMID: 38258831 DOI: 10.1519/jsc.0000000000004634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
ABSTRACT McAuley, ABT, Hughes, DC, Tsaprouni, LG, Varley, I, Suraci, B, Bradley, B, Baker, J, Herbert, AJ, and Kelly, AL. Genetic associations with acceleration, change of direction, jump height, and speed in English academy football players. J Strength Cond Res 38(2): 350-359, 2024-High-intensity movements and explosive actions are commonly assessed during athlete development in football (soccer). Although many environmental factors underpin these power-orientated traits, research suggests that there is also a sizeable genetic component. Therefore, this study examined the association of 22 single-nucleotide polymorphisms (SNPs) with acceleration, change of direction, jump height, and speed in academy football players. One hundred and forty-nine, male, under-12 to under-23 football players from 4 English academies were examined. Subjects performed 5-, 10-, 20-, and 30-m sprints, countermovement jumps (CMJs), and the 5-0-5 agility test. Simple linear regression was used to analyze individual SNP associations, whereas both unweighted and weighted total genotype scores (TGS; TWGS) were computed to measure the combined influence of all SNPs. To control for multiple testing, a Benjamini-Hochberg false discovery rate of 0.05 was applied to all genotype model comparisons. In isolation, the GALNT13 (rs10196189) G allele and IL6 (rs1800795) G/G genotype were associated with faster (∼4%) 5-, 10-, and 20-m sprints and higher (∼16%) CMJs, respectively (p < 0.001). Furthermore, the TGS and TWGS significantly correlated with all performance assessments, explaining between 6 and 33% of the variance (p < 0.001). This study demonstrates that some genetic variants are associated with power-orientated phenotypes in youth football players and may add value toward a future polygenic profile of physical performance.
Collapse
Affiliation(s)
- Alexander B T McAuley
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, West Midlands, United Kingdom
| | - David C Hughes
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, West Midlands, United Kingdom
| | - Loukia G Tsaprouni
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, West Midlands, United Kingdom
| | - Ian Varley
- Department of Sport Science, Nottingham Trent University, Nottingham, United Kingdom
| | - Bruce Suraci
- Academy Coaching Department, AFC Bournemouth, Bournemouth, United Kingdom; and
| | - Ben Bradley
- Academy Coaching Department, AFC Bournemouth, Bournemouth, United Kingdom; and
| | - Joseph Baker
- School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada
| | - Adam J Herbert
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, West Midlands, United Kingdom
| | - Adam L Kelly
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, West Midlands, United Kingdom
| |
Collapse
|
5
|
Diouf M, Miller J, Rothwell M. Professional soccer players perceptions of the English Football Association 4 corner model in supporting first team transitions. J Sports Sci 2024; 42:103-108. [PMID: 38545847 DOI: 10.1080/02640414.2024.2335583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024]
Abstract
The English Football Association (FA from hereon in) 4 Corner Model is a multidisciplinary framework that aims to enhance player talent identification and development, and is characterised by physical, social, technical/tactical and psychological components. Despite the framework being prominent within English football development pathways, player insights into the effectiveness of the framework in supporting academy to first team transitions are lacking. Therefore, the aim of this study was to explore established first team professional footballer's perceptions of the FA 4 Corner Model, in relation to the attributes that they perceived to facilitate the successful transition to a professional first team environment. Twelve current (n = 8) and ex (n = 4) professional players who had successfully transitioned from a youth academy, and subsequently became an established first team player, were interviewed for the study. Interpretations across the qualitative data set highlighted the importance of players adapting to physical and tactical demands, while also dealing with different psychosocial factors when entering a first team setting. The study highlights that disparities can exist between players, coaches, practitioners, and sport scientists perceived development needs, a situation that could hinder players progression through the player pathway.
Collapse
Affiliation(s)
- Moussa Diouf
- Sport and Human Performance Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Joe Miller
- Sport and Human Performance Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Martyn Rothwell
- Sport and Human Performance Research Centre, Sheffield Hallam University, Sheffield, UK
| |
Collapse
|
6
|
de la Rubia A, Lorenzo-Calvo J, Rojas-Valverde D, Mon-López D, Radnor J, Kelly AL. Bio-Banding in Handball: Academy Players' Perceptions Based on Maturity Status and Gender. Int J Sports Med 2023; 44:871-881. [PMID: 37524114 DOI: 10.1055/a-2145-6454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
The purpose of this study was to evaluate young male and female handball players' perceptions of the bio-banding concept. The estimated biological maturity status was assessed in a sample of 46 male and 40 female handball players (aged 14.06±1.40 years), who competed in both an annual age-group and bio-banded tournament. To test the players' perception of bio-banding, a post-competition questionnaire was conducted. A series of ANOVA and one-sample t-tests were used in order to examine the differences in perception between the different maturity groups. An inductive thematic analysis of the qualitative data recorded in the open-ended questions was also carried out. The results showed that early-maturing boys enjoyed the bio-banding tournament more than late-maturing boys (p<0.05). Conversely, no differences were found in girls (p>0.05). Furthermore, discussions were conducted based on the qualitative analysis of the players' written comments regarding their overall experience, finding individual variance in biological maturity may be less relevant in female sports contexts due to gender-related differences. Thus, a greater influence on play and leadership in late maturing boys and early maturing girls, a greater physical challenge in early maturing boys and an opportunity to express themselves technically and tactically in late maturing boys and on-time maturing girls were observed. Therefore, stakeholders must consider the different consequences of bio-banding in order to maximize the athlete's sport development process.
Collapse
Affiliation(s)
- Alfonso de la Rubia
- Deporte y Entrenamiento Research Group, Sports Department, Facultad de Ciencias de la Actividad Física y del Deporte, Universidad Politécnica de Madrid, Madrid (Spain)
| | - Jorge Lorenzo-Calvo
- Deporte y Entrenamiento Research Group, Sports Department, Facultad de Ciencias de la Actividad Física y del Deporte, Universidad Politécnica de Madrid, Madrid (Spain)
| | - Daniel Rojas-Valverde
- Escuela de Ciencias del Movimiento Humano y Calidad de Vida, Universidad Nacional de Costa Rica, Heredia, Costa Rica
| | - Daniel Mon-López
- Deporte y Entrenamiento Research Group, Sports Department, Facultad de Ciencias de la Actividad Física y del Deporte, Universidad Politécnica de Madrid, Madrid (Spain)
| | - John Radnor
- School of Sport and Health Sciences - Youth Physical Development Centre, Cardiff Metropolitan University, Cardiff, United Kingdom of Great Britain and Northern Ireland
| | - Adam L Kelly
- Athlete Development and Youth Sport (ADYS) Lab, Research Centre for Life and Sport Sciences (CLaSS), Birmingham City University, Birmingham, United Kingdom
| |
Collapse
|
7
|
Layton M, Taylor J, Collins D. The measurement, tracking and development practices of English professional football academies. J Sports Sci 2023; 41:1655-1666. [PMID: 38126085 DOI: 10.1080/02640414.2023.2289758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023]
Abstract
Tracking and measuring elements of performance is a well-established feature of practice in football academies. Player characteristics are considered, tracked, and measured using a variety of methods, with curricula often devised based on perceived importance and data interpretation. Against this breadth, our aim was to investigate the policies and systems in place at category one and two English football academies. Specifically, our objectives were (a) to understand what factors academies believe are important in the development of their players, (b) explore what academies are tracking and how they measure performance, and (c) analyse the extent to which these factors are integrated into the player's curricula. A total of 15 participants with over 10 years' experience across 40 Talent Development (TD) environments were recruited to participate in semi-structured interviews. Using Reflexive Thematic Analysis (RTA), generated themes suggest that academies perceive a differential weighting between performance factors, with greatest importance placed on technical, tactical and psychological factors. A lack of clear measurement systematisation was often apparent. Finally, we identified methods of player curricula integration. We conclude by offering implications for academies to optimise integration of systems and processes that measure and track their players development.
Collapse
Affiliation(s)
- Matthew Layton
- Swansea City Football Club, Swansea
- Moray House School of Education and Sport, The University of Edinburgh, Edinburgh, Scotland
| | - Jamie Taylor
- Faculty of Science and Health, School of Health and Human Performance, Dublin City University, Dublin, Ireland
- Insight SFI Centre for Data Analytics, Dublin City University, Glasnevin, Ireland
- Grey Matters Performance UK, Stratford Upon Avon, UK
| | - Dave Collins
- Moray House School of Education and Sport, The University of Edinburgh, Edinburgh, Scotland
- Faculty of Science and Health, School of Health and Human Performance, Dublin City University, Dublin, Ireland
- Grey Matters Performance UK, Stratford Upon Avon, UK
| |
Collapse
|
8
|
McAuley ABT, Varley I, Herbert AJ, Suraci B, Baker J, Johnston K, Kelly AL. Maturity-Associated Polygenic Profiles of under 12-16-Compared to under 17-23-Year-Old Male English Academy Football Players. Genes (Basel) 2023; 14:1431. [PMID: 37510335 PMCID: PMC10380058 DOI: 10.3390/genes14071431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/04/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
The purpose of this study was to examine polygenic profiles previously associated with maturity timing in male academy football players across different age phases. Thus, 159 male football players from four English academies (U12-16, n = 86, aged 13.58 ± 1.58 years; U17-23, n = 73, aged 18.07 ± 1.69 years) and 240 male European controls were examined. Polygenic profiles comprised 39 single nucleotide polymorphisms and were analysed using unweighted and weighted total genotype scores (TGSs; TWGSs). There were significant differences in polygenic profiles between groups, whereby U17-23 players had more genetic variants associated with later maturity compared to U12-16 players (TGS, p = 0.010; TWGS, p = 0.024) and controls (TGS, p = 0.038; TWGS, p = 0.020). More specifically, U17-23 players had over two-times the odds of possessing >36 later-maturing alleles than <30 compared to U12-16 players (odds ratio (OR) = 2.84) and controls (OR = 2.08). These results suggest there was a greater proportion of relatively later-maturing players as maturation plateaus towards adulthood, which may be explained by the 'underdog hypothesis'. This study provides the first known molecular evidence that supports the notion that a maturity selection bias exists within male academy football.
Collapse
Affiliation(s)
- Alexander B T McAuley
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, UK
| | - Ian Varley
- Department of Sport Science, Nottingham Trent University, Nottingham NG11 8NS, UK
| | - Adam J Herbert
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, UK
| | - Bruce Suraci
- Academy Coaching Department, AFC Bournemouth, Bournemouth BH7 7AF, UK
| | - Joseph Baker
- School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada
| | - Kathryn Johnston
- School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada
| | - Adam L Kelly
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, UK
| |
Collapse
|
9
|
Radnor JM, Oliver JL, Dobbs I, Wong M, Brown TW, Lloyd RS, Kelly AL. Selection into youth cricket academies: The influence of relative age and maturity status. J Sports Sci 2023; 41:272-279. [PMID: 37163466 DOI: 10.1080/02640414.2023.2208924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The aim of the study was to examine the birth quartile and maturity status distributions of male academy cricketers. Participants included 213 junior cricket players, aged between 9 and 18 years. Players were separated into birth quartiles and also grouped as early, average or late maturers. For the whole cohort, there was a medium effect bias towards players born in BQ1, but the number of early, average and late maturers was as expected. However, there were significantly more early maturers in the U10 and U11 groups than expected, and maturity distributions of the BQ groups showed that there was a small effect size bias towards early maturers in BQ4. Selection biases towards cricketers who are born earlier in the competitive year are consistent from U9 to U16, but more prevalent in the U12 and U14 age groups. There is a bias towards early maturers at U10 and U11, but this reduces as age increases. Practitioners working in academy pathways should be encouraged to assess the maturity status of players to assist in the retention and progression of players. Relative age effects should also be considered, and strategies may be required to identify players born later in the year.
Collapse
Affiliation(s)
- John M Radnor
- Youth Physical Development Centre, School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Jon L Oliver
- Youth Physical Development Centre, School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
- Sport Performance Research Institute New Zealand, AUT University, Auckland, New Zealand
| | - Ian Dobbs
- Youth Physical Development Centre, School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Megan Wong
- Youth Physical Development Centre, School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Thomas W Brown
- Centre for Life and Sport Science (C-LaSS), Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, UK
- Warwickshire County Cricket Club, Birmingham, UK
| | - Rhodri S Lloyd
- Youth Physical Development Centre, School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
- Sport Performance Research Institute New Zealand, AUT University, Auckland, New Zealand
- Centre for Sport Science and Human Performance, Waikato Institute of Technology, Hamilton, New Zealand
| | - Adam L Kelly
- Centre for Life and Sport Science (C-LaSS), Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, UK
| |
Collapse
|
10
|
Kite RJ, Noon MR, Morris R, Mundy P, Clarke ND. Observations of Player (de)Selection Within a Professional UK Soccer Academy. JOURNAL OF SCIENCE IN SPORT AND EXERCISE 2023:1-10. [PMID: 37359765 PMCID: PMC9994390 DOI: 10.1007/s42978-023-00222-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 02/07/2023] [Indexed: 06/28/2023]
Abstract
The present study engaged in an ethnographical observation of the processes used to determine player (de)selections within a professional academy. English category-2 youth academy players (n = 96) from U10-U16 age groups undertook anthropometric profiling (height, mass and somatic maturation) and fitness assessments (10 m, 20 m & 30 m linear sprints, 505-agility test, countermovement and squat jumps). Each players lead coach (n = 4) subjectively graded players utilising a red, amber and green (RAG) rating system on a weekly (current performance) and quarterly (perceived potential) basis, across 25 weeks. A MANCOVA, controlling for maturation, was applied to determine differences in (de)selection by physical performance. Mann Whitney-U tests were used to distinguish difference in (de)selection by subjective grading (weekly and quarterly). The key finding was that quarterly subjective gradings established a higher cumulative score of green ratings in selected players and a low cumulative score of red ratings, and vice versa for deselected players (P ≤ 0.001 to 0.03). However, whilst these findings suggest that quarterly subjective grades of potential were able to provide the best predictors for player (de)selection, the findings should be viewed with caution due to high potential for confirmatory bias.
Collapse
Affiliation(s)
- Rich J. Kite
- Academy Sports Science and Medical Department, Coventry City Football Club, Coventry, UK
- Centre for Sport, Exercise and Life Sciences, Coventry University, Coventry, UK
| | - Mark R. Noon
- Centre for Sport, Exercise and Life Sciences, Coventry University, Coventry, UK
- Faculty of Health and Life Sciences, Coventry University, Coventry, UK
| | - Rhys Morris
- Faculty of Health and Life Sciences, Coventry University, Coventry, UK
| | - Peter Mundy
- Centre for Sport, Exercise and Life Sciences, Coventry University, Coventry, UK
- Faculty of Health and Life Sciences, Coventry University, Coventry, UK
| | - Neil D. Clarke
- Centre for Sport, Exercise and Life Sciences, Coventry University, Coventry, UK
- Faculty of Health and Life Sciences, Coventry University, Coventry, UK
| |
Collapse
|
11
|
Machado G, González-Víllora S, Teoldo I. Selected soccer players are quicker and better decision-makers in elite Brazilian youth academies. INT J PERF ANAL SPOR 2023. [DOI: 10.1080/24748668.2023.2181609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Affiliation(s)
- Guilherme Machado
- Centre of Research and Studies in Soccer (NUPEF), Universidade Federal de Viçosa (UFV), Viçosa-MG, Brazil
- EDAF Research Group, Faculty of Education, University of Castilla-La Mancha, Albacete, Spain
| | - Sixto González-Víllora
- EDAF Research Group, Faculty of Education, University of Castilla-La Mancha, Albacete, Spain
| | - Israel Teoldo
- Centre of Research and Studies in Soccer (NUPEF), Universidade Federal de Viçosa (UFV), Viçosa-MG, Brazil
| |
Collapse
|
12
|
Liu B, Zhou CJ, Ma HW, Gong B. Mapping the youth soccer: A bibliometrix analysis using R-tool. Digit Health 2023; 9:20552076231183550. [PMID: 37361439 PMCID: PMC10286214 DOI: 10.1177/20552076231183550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 06/05/2023] [Indexed: 06/28/2023] Open
Abstract
In recent years, there has been an increase in the scientific production of youth soccer. However, a panoramic map of research on this subject does not exist. The aim of this study was to identify global research trends in youth soccer over time, among the main levels of analysis: sources, authors, documents, and keywords. The bibliometric software Biblioshiny was used to analyze 2606 articles in Web of Science (WoS) published between 2012 and 2021. The main conclusion is that US and UK scholars dominate the research; the topics of research are changing with the real needs, and research on the topic of performance has been of interest to scholars; talent identification and development, performance, injury prevention, and concussion are the studies of interest to scholars in this area. This finding, which offers a global picture of youth soccer research over time, can help future research in this or similar domains.
Collapse
Affiliation(s)
- Bo Liu
- School of Athletic Performance, Shanghai University of Sport, Shanghai, China
| | - Chang-Jing Zhou
- School of Athletic Performance, Shanghai University of Sport, Shanghai, China
| | - Hao-Wei Ma
- School of Athletic Performance, Shanghai University of Sport, Shanghai, China
| | - Bo Gong
- School of Athletic Performance, Shanghai University of Sport, Shanghai, China
| |
Collapse
|
13
|
Yang S, Lin W, Jia M, Chen H. Association between ACE and ACTN3 genes polymorphisms and athletic performance in elite and sub-elite Chinese youth male football players. PeerJ 2023; 11:e14893. [PMID: 36992938 PMCID: PMC10042156 DOI: 10.7717/peerj.14893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 01/23/2023] [Indexed: 03/31/2023] Open
Abstract
Background Previous studies have shown controversial relationships between ACE I/D and ACTN3 R577x polymorphisms and athletic performance. Therefore, the aim of this study was to assess athletic performance indicators of Chinese youth male football players with different ACE and ACTN3 gene profiles. Methods and Materials This study recruited 73 elite (26 13-year-olds, 28 14-year-olds, and 19 15-year-olds) and 69 sub-elite (37 13-year-olds, 19 14-year-olds, and 13 15-year-olds) and 107 controls (63 13-year-olds, and 44 14-year olds aged 13-15 years, all participants were of Chinese Han origin. We measured height, body mass, thigh circumference, speed, explosive power, repeat sprints ability, and aerobic endurance in elite and sub-elite players. We used single nucleotide polymorphism technology to detect controls elite and sub-elite players' ACE and ACTN3 genotypes, Chi-squared (χ 2) tests were employed to test for Hardy-Weinberg equilibrium. χ 2 tests were also used to observe the association between the genotype distribution and allele frequencies between controls and elite and sub-elite players. The differences in parameters between the groups were analyzed using one-way analysis of variance and a Bonferroni's post-hoc test, with statistical significance set at p ≤ 0.05. Results (1) The genotype distribution of the ACE I/D and ACTN3 R577x polymorphisms in controls, elite and sub-elite football players were consistent with Hardy-Weinberg equilibrium, except for the ACE genotype distribution of sub-elite players. (2) The RR and DD genotypes were significantly different between elite and sub-elite players (p = 0.024 and p = 0.02, respectively). (3) Elite players were more likely to have the RR genotype and less likely to have the DD genotype compared with sub-elite players. (4) Both elite and sub-elite RR players' Yo-yo intermittent recovery level 1 (YYIR1) running distance was significantly longer than that of RX players (p = 0.05 and p = 0.025, respectively). However, there was no significantly different in YYIR1 running distance between elite and sub-elite RR players. (5) Elite XX players' VO2 max was significantly higher than that of RX and sub-elite players. Conclusion These results indicate that ACE I/D and ACTN3 R577x polymorphisms are not associated with muscle power in Chinese elite and sub-elite players. The XX genotype of ACTN3 is associated with the aerobic endurance of elite players.
Collapse
Affiliation(s)
- Shidong Yang
- Department of Physical Education, Nanjing Xiaozhuang University, Nan Jing, China
- Department of Physical Education and Sports Science, Fujian Normal University, Fu Zhou, China
| | - Wentao Lin
- Department of Physical Education, Zhuhai University of Science and Technology, Zhuhai, China
| | - Mengmeng Jia
- Department of Physical Education and Sports Science, Fujian Normal University, Fu Zhou, China
| | - Haichun Chen
- Department of Physical Education and Sports Science, Fujian Normal University, Fu Zhou, China
| |
Collapse
|
14
|
Lemos L, Nevill A, Duncan MJ, De Oliveira VC, Pino-Ortega J, Santos A, Martins C, Nakamura F. Sport-Specific Skills Differentiate Performance Levels Better Than Anthropometric or Physiological Factors in Beach Handball. RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2022; 93:682-687. [PMID: 34705619 DOI: 10.1080/02701367.2021.1902460] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 03/08/2021] [Indexed: 06/13/2023]
Abstract
Beach handball is characterized by high- and low-intensity efforts on an unstable surface. Players are expected to display high levels of physical performance on sand, though there are no data concerning success in elite players. Purpose: This study aimed to address anthropometric, fitness, and sport-specific skills components in beach handball, by comparing elite national team beach handball players (world champions) to sub-elite players (playing at a regular club). Method: A total of 91 senior players (more than 21 years old) of both genders (19 world champions) were assessed for anthropometry, 5-m acceleration, 15-m sprint, handgrip strength, horizontal jump, and three specific sport-specific skills (ball velocities in standing, inflight and spin throwing) at a beach court. Anthropometric, physiological, and sport-specific skill test variables were analyzed as a multiple dependent variable using a multivariate analysis of variance (MANOVA) with sex and level (elite vs sub-elite) as the fixed factors. SPSS (25.0) was used, significance was assumed at p < .05. Results: The results highlighted that for male and female athletes, horizontal jump, 6-m standing, spin, and inflight throwing discriminated between elite and sub-elite groups (p < .001). Conclusion: The study suggests that the factors which differentiate between elite and sub-elite performers in beach handball are horizontal jump and technical ability via the performance of specific throwing skills, rather than anthropometric or any other physical variables, irrespective of sex. These findings highlight some of the relevant physical capacities and skills that need to be developed over the years of preparation of top-level beach handball players.
Collapse
|
15
|
Physical Fitness Variations between Those Playing More and Those Playing Less Time in the Matches: A Case-Control Study in Youth Soccer Players. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9111786. [PMID: 36421235 PMCID: PMC9689158 DOI: 10.3390/children9111786] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/16/2022] [Accepted: 11/19/2022] [Indexed: 11/23/2022]
Abstract
The purpose of this study was (i) to compare two groups (players with more vs. less match play time) regarding body composition, vertical and horizontal jumping performance, and aerobic capacity; and (ii) to test the relationships between physical fitness and play time. This study followed a case-control design in which the outcome was playtime, and the causal attribute was physical fitness. Sixty-six youth male soccer players from under-16 (n = 21), under-17 (n = 19), under-18 (n = 12), and under-19 (n = 14) age groups were monitored for match play time during five months of observation. Inclusion criteria consisted of (1) no absence of more than a week due to injury or other conditions during the five months of observation and (2) physical assessments having been done simultaneously with those of the other players (at the beginning of the season). The exclusion criteria were (1) not participating in one week or more of training sessions, and (2) not participating in the physical fitness assessments. At the beginning of the season, players were assessed for anthropometry (height, body mass, skinfolds), countermovement jump, triple hop bilateral and unilateral jump, and aerobic capacity using the Yo-Yo Intermittent Recovery Test, level 2 (YYIRT). The group that played more time had significantly greater YYIRT results (+28.2%; p = 0.009; Cohen’s d = 0.664). No other significant differences were found between those who played more and fewer minutes. Moderate and significant linear positive correlations were found between YYIRT and play time in the under-19 group (r = 0.423; p = 0.031) and overall (r = 0.401; p < 0.001). In the case of the under-17 group, moderate and significant linear positive correlations were found between TSA and play time (r = 0.473; p = 0.041). This suggests that aerobic and anaerobic capacity is related to play time while jumping performance and fat mass seem not to play an essential role in play time.
Collapse
|
16
|
McAuley AB, Hughes DC, Tsaprouni LG, Varley I, Suraci B, Baker J, Herbert AJ, Kelly AL. Genetic Variations between Youth and Professional Development Phase English Academy Football Players. Genes (Basel) 2022; 13:genes13112001. [PMID: 36360238 PMCID: PMC9689905 DOI: 10.3390/genes13112001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/14/2022] [Accepted: 10/29/2022] [Indexed: 11/06/2022] Open
Abstract
The purpose of this study was to examine differences in the genotype frequency distribution of thirty-three single nucleotide variants (SNVs) between youth development phase (YDP) and professional development phase (PDP) academy football players. One hundred and sixty-six male football players from two Category 1 and Category 3 English academies were examined within their specific age phase: YDP (n = 92; aged 13.84 ± 1.63 years) and PDP (n = 74; aged 18.09 ± 1.51 years). Fisher's exact tests were used to compare individual genotype frequencies, whereas unweighted and weighted total genotype scores (TGS; TWGS) were computed to assess differences in polygenic profiles. In isolation, the IL6 (rs1800795) G allele was overrepresented in PDP players (90.5%) compared to YDP players (77.2%; p = 0.023), whereby PDP players had nearly three times the odds of possessing a G allele (OR = 2.83, 95% CI: 1.13-7.09). The TGS (p = 0.001) and TWGS (p < 0.001) were significant, but poor, in distinguishing YDP and PDP players (AUC = 0.643-0.694), with PDP players exhibiting an overall more power-orientated polygenic profile. If validated in larger independent youth football cohorts, these findings may have important implications for future studies examining genetic associations in youth football.
Collapse
Affiliation(s)
- Alexander B.T. McAuley
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, UK
- Correspondence:
| | - David C. Hughes
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, UK
| | - Loukia G. Tsaprouni
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, UK
| | - Ian Varley
- Department of Sport Science, Nottingham Trent University, Nottingham NG11 8NS, UK
| | - Bruce Suraci
- Academy Coaching Department, AFC Bournemouth, Bournemouth BH7 7AF, UK
| | - Joseph Baker
- School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada
| | - Adam J. Herbert
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, UK
| | - Adam L. Kelly
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, UK
| |
Collapse
|
17
|
Kelly AL, Williams CA, Cook R, Sáiz SLJ, Wilson MR. A Multidisciplinary Investigation into the Talent Development Processes at an English Football Academy: A Machine Learning Approach. Sports (Basel) 2022; 10:159. [PMID: 36287772 PMCID: PMC9611883 DOI: 10.3390/sports10100159] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/23/2022] [Accepted: 10/13/2022] [Indexed: 08/13/2023] Open
Abstract
The talent development processes in youth football are both complex and multidimensional. The purpose of this two-fold study was to apply a multidisciplinary, machine learning approach to examine: (a) the developmental characteristics of under-9 to under-16 academy players (n = 98; Study 1), and (b) the characteristics of selected and deselected under-18 academy players (n = 18; Study 2). A combined total of 53 factors cumulated from eight data collection methods across two seasons were analysed. A cross-validated Lasso regression was implemented, using the glmnet package in R, to analyse the factors that contributed to: (a) player review ratings (Study 1), and (b) achieving a professional contract (Study 2). Results showed non-zero coefficients for improvement in subjective performance in 15 out of the 53 analysed features, with key findings revealing advanced percentage of predicted adult height (0.196), greater lob pass (0.160) and average dribble completion percentage (0.124), more total match-play hours (0.145), and an older relative age (BQ1 vs. BQ2: -0.133; BQ1 vs. BQ4: -0.060) were the most important features that contributed towards player review ratings. Moreover, PCDEQ Factor 3 and an ability to organise and engage in quality practice (PCDEQ Factor 4) were important contributing factors towards achieving a professional contract. Overall, it appears the key factors associated with positive developmental outcomes are not always technical and tactical in nature, where coaches often have their expertise. Indeed, the relative importance of these factors is likely to change over time, and with age, although psychological attributes appear to be key to reaching potential across the academy journey. The methodological techniques used here also serve as an impetus for researchers to adopt a machine learning approach when analysing multidimensional databases.
Collapse
Affiliation(s)
- Adam L. Kelly
- Research Centre for Life and Sport Sciences (CLaSS), Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, West Midlands, UK
| | - Craig A. Williams
- Children’s Health and Exercise, Research Centre and Sport and Health Sciences, College of Life & Environmental Sciences, University of Exeter, Exeter EX1 2LU, Devon, UK
| | - Rob Cook
- Research Centre for Life and Sport Sciences (CLaSS), Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham B15 3TN, West Midlands, UK
| | | | - Mark R. Wilson
- Children’s Health and Exercise, Research Centre and Sport and Health Sciences, College of Life & Environmental Sciences, University of Exeter, Exeter EX1 2LU, Devon, UK
| |
Collapse
|
18
|
Papadakis Z, Panoutsakopoulos V, Kollias IA. Predictive Value of Repeated Jump Testing on Nomination Status in Professional and under 19 Soccer Players. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13077. [PMID: 36293658 PMCID: PMC9602553 DOI: 10.3390/ijerph192013077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/04/2022] [Accepted: 10/09/2022] [Indexed: 06/16/2023]
Abstract
Soccer clubs invest time and money in multidimensional identification practices, but the field implementation is still problematic. The repeated vertical jump test (RVJ), as an alternative to the monodimensional vertical jump, may offer similar prognostic value. Therefore, the prognostic validity of 15 RVJ within professional (PRO, n = 24) and under 19 years old (U19, n = 20) Greek male soccer players was examined. T-test, binomial logistic regression, and receiver operating characteristic for prognostic validity of anthropometric and performance values in predicting PRO status were applied using Jamovi version 2.3.3.0. Significant group differences presented in body height and mass, body mass index (BMI), maximum and average jump height, and relative jump power. The predicting model was significant (x2(2) = 17.12, p < 0.001). Height and BMI were positive predictors of the PRO status (b = 21.66, p = 0.008 and b = 0.94, p = 0.014, respectively). The model was 73% accurate, 75% specific, and 71% sensitive, with excellent area under the curve. The RVJ test demonstrated outstanding discriminating prognostic validity. Until the applicability of the multidimensional models in predicting future player status is further established, field practitioners may use the simplistic RVJ testing to predict future status among male soccer players.
Collapse
Affiliation(s)
- Zacharias Papadakis
- Human Performance Laboratory, Department of Health Promotion and Clinical Practice, College of Health and Wellness, Barry University, Miami Shores, FL 33161, USA
| | - Vassilios Panoutsakopoulos
- Biomechanics Laboratory, School of Physical Education and Sports Sciences at Thessaloniki, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Iraklis A. Kollias
- Biomechanics Laboratory, School of Physical Education and Sports Sciences at Thessaloniki, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| |
Collapse
|
19
|
Tadesse T, Asmamaw A, H/Mariam S, Edo B. A survey of contextual factors and psychological needs satisfaction as correlates of youth athletes' developmental outcomes in the Ethiopian sports academy context. BMC Sports Sci Med Rehabil 2022; 14:156. [PMID: 35974400 PMCID: PMC9380373 DOI: 10.1186/s13102-022-00545-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 07/28/2022] [Indexed: 11/25/2022]
Abstract
Background This study examined the contextual factors associated with psychological need satisfaction (PNS) and the predictability of the PNS components, together with the contextual factors, on the developmental outcomes of elite young athletes in the Ethiopian sports academies, and further identified differences in perception of PNS from a comparative perspective. The study used a cross-sectional survey design applying developmental and PNS theories as guiding frameworks. Samples of elite young Ethiopian athletes participated (n = 257, 47.47% were women with a mean age of 17.44 years and SD = 0.87, and 52.53% were men with a mean age of 18.25 years and SD = 1.14). Results Structural equation modeling showed that the three PNS domains, together with the five contextual factors positively predicted the three developmental outcomes measured (41–54% explained variance). Moreover, there were higher differences in PNS (0.55 ≤ Cohen’s d ≥ 0.71) among young athletes classified by the sport types. Discussion As per the findings of this study, young athletes may differ in the levels of PNS they obtained depending on the type of sports enrolled in sports academies. Also, the results of this study indicated that PNS attained may be modestly influenced by some contextual factors. It also evidenced that those developmental outcomes in elite young athletes are significantly positively associated with contextual and PNS factors. Stakeholders such as young athlete coaches, parents, sports psychologists, and administrators must consider the differing implications of program type during the elite young athletes’ participation in sports academics and the significant positive association between contextual factors, PNS, and developmental outcomes of elite young athletes. Conclusions In sum, the PNS of youth athletes may differ across sports types and the talent development of elite young athletes should emphasize the individual nature of the processes. Also, it can be concluded that the PNS components than the contextual factors had higher predictions of developmental outcomes.
Collapse
Affiliation(s)
- Tefera Tadesse
- Institute of Educational Research, Addis Ababa University, PO Box 1176, Addis Ababa, Ethiopia. .,Institute of Medical Education, University Hospital, LMU Munich, 80336, Munich, Germany.
| | - Aemero Asmamaw
- Department of Psychology, The University of Gondar, Gondar, Ethiopia
| | | | - Beshir Edo
- Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
| |
Collapse
|
20
|
Happy Birthday? Relative Age Benefits and Decrements on the Rocky Road. Sports (Basel) 2022; 10:sports10060082. [PMID: 35736822 PMCID: PMC9230912 DOI: 10.3390/sports10060082] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 02/04/2023] Open
Abstract
(1) Background: There is abundant literature in talent development investigating the relative age effect in talent systems. There is also growing recognition of the reversal of relative age advantage, a phenomenon that sees significantly higher numbers of earlier born players leaving talent systems before the elite level. However, there has been little investigation of the mechanisms that underpin relative age, or advantage reversal. This paper aimed to investigate (a) the lived experience of relative age in talent development (TD) systems, (b) compare the experience of early and late born players, and (c) explore mechanisms influencing individual experiences. (2) Methods: interviews were conducted with a cohort of near elite and elite rugby union players. Data were subsequently analysed using reflexive thematic analysis and findings considered in light of eventual career status. (3) Results: challenge was an ever-present feature of all players journeys, especially at the point of transition to senior rugby. Psycho-behavioural factors seemed to be a primary mediator of the response to challenge. (4) Conclusions: a rethink of approach to the relative age effect is warranted, whilst further investigations of mechanisms are necessary. Relative age appears to be a population-level effect, driven by challenge dynamics.
Collapse
|
21
|
Methodological Approaches to Talent Identification in Team Sports: A Narrative Review. Sports (Basel) 2022; 10:sports10060081. [PMID: 35736821 PMCID: PMC9227581 DOI: 10.3390/sports10060081] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 02/04/2023] Open
Abstract
Talent identification (TID) and talent development (TD) continue to receive significant investment from team sports organisations, highlighting their importance in attempting to identify potential elite athletes. Accompanying this continual pursuit to unearth future talent is an ever-increasing body of research aiming to provide solutions and strategies to optimise TID and TD processes. Therefore, the aim of this review is to provide a summary and critical synthesis of the methodological approaches applied to TID in team sports and present considerations for future TID research. Specifically, this review highlights three key areas for consideration: (1) the timespan of the research design; (2) the use of monodisciplinary or multidisciplinary variables; and (3) the fidelity of the methodological approaches to the assessment of talent. The review highlights the benefits of longitudinal, multidisciplinary, and ecologically valid research designs for TID within team sports.
Collapse
|
22
|
McCalman W, Crowley-McHattan ZJ, Fransen J, Bennett KJM. Skill assessments in youth soccer: A scoping review. J Sports Sci 2021; 40:667-695. [PMID: 34967269 DOI: 10.1080/02640414.2021.2013617] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Talent identification in youth soccer is a complex decision-making process that requires selectors to judge an individual's future potential. While there has been considerable research into the performance characteristics of talented players, investigators have limited consensus on the best approach to assess soccer skills. Most of the research explains why we should measure skill instead of how we go about assessing skill. Therefore, the current scoping review aimed to synthesize and analyse skill assessments in youth soccer. Four electronic databases (EBSCO, ProQuest, PubMed, and Scopus) were searched for relevant studies. Information regarding the sample characteristics and methodological design of the skill assessments were extracted, synthesised, and presented in a qualitative analysis. Overall, 226 skill assessments were used across the 93 included studies. Male players from different ages (U/7-U/23) and playing levels comprised most (89%) of the collective sample. The majority of assessments were performed in settings not representative of football match-play (68%), focused on offensive skills (99%), and included skill outcome measures (95%). The variability of assessments highlights some confusion about the best way to assess soccer skill, potentially limiting selectors ability to identify skilful players. Ultimately, this will impact the number of quality players within the talent pool.
Collapse
Affiliation(s)
- William McCalman
- Faculty of Health, Discipline of Sport and Exercise Science, Southern Cross University, Coffs Harbour, Australia
| | - Zachary J Crowley-McHattan
- Faculty of Health, Discipline of Sport and Exercise Science, Southern Cross University, Coffs Harbour, Australia
| | - Job Fransen
- Human Performance Research Centre, School of Sport, Exercise and Rehabilitation, Faculty of Health, University of Technology Sydney, Sydney, Australia
| | - K J M Bennett
- Faculty of Health, Discipline of Sport and Exercise Science, Southern Cross University, Coffs Harbour, Australia
| |
Collapse
|
23
|
Kelly AL, Jackson DT, Barrell D, Burke K, Till K. The relative age effect in male and female English age-grade rugby union: Exploring the gender-specific mechanisms that underpin participation. SCI MED FOOTBALL 2021; 6:277-284. [DOI: 10.1080/24733938.2021.1955145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Adam L. Kelly
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, West Midlands, UK
| | - Daniel T. Jackson
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, West Midlands, UK
| | - Donald Barrell
- Rugby Football Union, Rugby House, Twickenham Stadium, Twickenham, London, UK
| | - Kate Burke
- Rugby Football Union, Rugby House, Twickenham Stadium, Twickenham, London, UK
| | - Kevin Till
- Carnegie School of Sport, Leeds Beckett University, Leeds, Yorkshire, UK
| |
Collapse
|
24
|
Relative Age Effects in Basketball: Exploring the Selection into and Successful Transition Out of a National Talent Pathway. Sports (Basel) 2021; 9:sports9070101. [PMID: 34357935 PMCID: PMC8309713 DOI: 10.3390/sports9070101] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 12/02/2022] Open
Abstract
Relative age effects (RAEs) appear consistently prevalent throughout the youth basketball literature. However, the selection into and successful transition out of a national talent pathway in basketball is yet to be explored. Thus, the primary aim of this study was to explore the influence of relative age, gender, and playing time based on the selection into the Regional Talent Hubs and Basketball England youth teams (U16, U18, and U20) and the successful transition into the England National Senior Teams. Participants who were selected into the male (n = 450) and female (n = 314) Basketball England Talent Pathway were allocated into one of three cohorts: (a) Regional Talent Hubs (U12 to U15; n = 183), (b) England National Youth Teams (U16, U18, and U20; n = 537), and (c) England National Senior Teams (n = 44). A chi-square test was used to compare the birth quarter (BQ) distributions of each cohort against the expected distributions, with a Cramer’s V (Vc) used to interpret effect sizes. Odds ratios (OR) and 95% confidence intervals were also calculated to compare the likelihood of each BQ being represented. Males revealed significant RAEs across both the Regional Talent Hubs (p < 0.001, Vc > 0.29, OR = 10) and England National Youth Teams (p < 0.001, Vc > 0.17, OR = 3.1). In comparison, females only had significant RAEs in the Regional Talent Hubs (p < 0.001, Vc > 0.29, OR = 2.3). Despite RAEs being prevalent throughout youth levels, there were no significant differences in the BQ distribution based on playing time and those who made the successful transition to the England National Senior Teams. These findings demonstrate the potential mechanisms of RAEs in basketball, as well as the impetus to explore more equitable competition structures within the England Basketball Talent Pathway.
Collapse
|
25
|
Leyhr D, Bergmann F, Schreiner R, Mann D, Dugandzic D, Höner O. Relative Age-Related Biases in Objective and Subjective Assessments of Performance in Talented Youth Soccer Players. Front Sports Act Living 2021; 3:664231. [PMID: 34056590 PMCID: PMC8160372 DOI: 10.3389/fspor.2021.664231] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/24/2021] [Indexed: 12/24/2022] Open
Abstract
Talent research has recommended that multidimensional assessments of performance are needed to improve the identification and development of talented young athletes. However, factors such as the relative age effect may cloud our ability to assess factors related to performance. The aim of this study was to determine the extent of any relationship between soccer players' chronological and relative age, and objective and subjective performance assessments. Data for highly talented male soccer players selected into the German Soccer Associations' talent promotion program (N = 16,138) for U12 to U15 age groups (M age = 12.62 ± 1.04 years) were examined. Besides anthropometric assessments, players completed a battery of five motor tests that objectively assessed speed abilities and technical skills (specifically sprint, agility, dribbling, ball control, and juggling). In addition, coaches subjectively rated players on their kicking, tactical, and psychosocial skills, as well as providing holistic evaluations of each player's current and future performance levels. Correlation analyses were used to investigate the extent of any relationships between the chronological and relative age of players and their results for each of the assessments. A strong linear decrease in the frequency of later-born players confirmed the overrepresentation of early-born players in all age groups (0.92 ≤ |r| ≤ 0.95, each p < 0.001). From U12 to U15, significant (each p < 0.001) correlations were found between the chronological age of players and their height (|r| = 0.70), weight (|r| = 0.69), speed abilities (|r| = 0.38), and technical skills (|r| = 0.43). When evaluating each age group separately, small effects were found when correlating relative age with the anthropometric assessments (0.18 ≤ |r| ≤ 0.26), and only trivial effects with speed abilities and technical skills (0.01 ≤ |r| ≤ 0.06). Similarly, low correlations were found for the subjective evaluations of kicking, tactical, and psychosocial skills with chronological age across age groups (0.03 ≤ |r| ≤ 0.07), and with relative age in each age group (0.01 ≤ |r| ≤ 0.11). The results show a skewed distribution toward early-born players and-in reference to their relative age-advanced performance in late-born athletes. However, trends toward a better holistic rating of early-born players for current and future performance levels were found. Coaches should be aware of these effects during talent selection, but also when interpreting results from subjective and objective assessments of performance.
Collapse
Affiliation(s)
- Daniel Leyhr
- Department of Sport Psychology and Research Methods, Institute of Sports Science, Eberhard Karls University of Tübingen, Tübingen, Germany
- Methods Center, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Fynn Bergmann
- Department of Sport Psychology and Research Methods, Institute of Sports Science, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Robert Schreiner
- Department of Sport Psychology and Research Methods, Institute of Sports Science, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - David Mann
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | | | - Oliver Höner
- Department of Sport Psychology and Research Methods, Institute of Sports Science, Eberhard Karls University of Tübingen, Tübingen, Germany
| |
Collapse
|
26
|
Dugdale JH, McRobert AP, Unnithan VB. Selected, Deselected, and Reselected: A Case Study Analysis of Attributes Associated With Player Reselection Following Closure of a Youth Soccer Academy. Front Sports Act Living 2021; 3:633124. [PMID: 33834165 PMCID: PMC8021956 DOI: 10.3389/fspor.2021.633124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/22/2021] [Indexed: 11/26/2022] Open
Abstract
Considering the perceived benefit of early recruitment and the time and resources spent developing youth players, individuals released from talent development programmes are often re-recruited by rival academies. However, due to the contractual nature of many talent development programmes, limited empirical data exists on players deselected from (or reselected to) youth soccer academies. Adopting a novel case study approach, differences in skill, psychological, and physical attributes associated with reselection following closure of a junior-elite soccer academy were explored. Overall subjective coach ratings for skill, psychological, and physical abilities; subjective coach ratings for skill and psychological attributes; and physical fitness test performance of 79 junior-elite soccer players (U11-U17) were assessed as part of regular scheduled testing and monitoring practices prior to the academy closure. Reselection status was monitored and recorded for all players in the 6 months following the academy closure and was classified as a persistence/progression ("Reselected") or attrition ("Deselected") in playing level. Of the 79 released players, a total of 60 players (76%) were re-signed to a junior-elite academy within 6 months. Differences were observed for overall ratings of skill, psychological, and physical abilities in favor of the "Reselected" player group. "Reselected" players were also rated higher by coaches for all attributes categorized as skill and psychological, as well as performing better at all physical fitness tests. However, "Reselected" players were lesser in stature and body mass and less mature than "Deselected" players. Our findings suggest that reselection is not a product of anthropometric criteria and, therefore, a pathway for selection remains open for later maturing players. We also inform upon desirable qualities associated with player reselection and provide a case study approach of a unique, yet highly relevant, scenario for talent identification and development in youth soccer.
Collapse
Affiliation(s)
- James H. Dugdale
- Physiology Exercise and Nutrition Research Group, Faculty of Health Sciences and Sport, University of Stirling, Stirling, United Kingdom
| | - Allistair P. McRobert
- The Football Exchange, Liverpool John Moores University, Liverpool, United Kingdom
- Research Institute for Sport & Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Viswanath B. Unnithan
- Division of Sport and Exercise, School of Health and Life Sciences, University of the West of Scotland, Hamilton, United Kingdom
| |
Collapse
|
27
|
Kelly AL, Till K, Jackson D, Barrell D, Burke K, Turnnidge J. Talent Identification and Relative Age Effects in English Male Rugby Union Pathways: From Entry to Expertise. Front Sports Act Living 2021; 3:640607. [PMID: 33681762 PMCID: PMC7933505 DOI: 10.3389/fspor.2021.640607] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 01/13/2021] [Indexed: 12/02/2022] Open
Abstract
A common practice in youth rugby union is to group players based on (bi)annual age with fixed cut-off dates. The overrepresentation of players born at the start of the cut-off date and the underrepresentation of players born toward the end of the cut-off date are termed relative age effects (RAEs). The aim of this study was to examine RAEs during entry into professional and international rugby union pathways in England, as well as comparing them to their respective senior cohort: U15 Regional Academy Player (n = 1,114) vs. Senior Professional Player (n = 281) and U16-23 England Academy Player (n = 849) vs. Senior International Player (n = 48). Chi-square (χ2) analysis compared birth quarter (BQ) distributions against expected distributions. Odds ratios and 95% confidence intervals compared the likelihood of a BQ being selected. Findings revealed a significant overrepresentation of relatively older players compared with their relatively younger peers within both youth cohorts (P < 0.001; BQ1 = 42.5% vs. BQ4 = 9.6%; BQ1 = 36.5% vs. BQ4 = 15.2%). In comparison, there was no significant difference in the BQ distributions within both senior cohorts. Further, BQ4s were 3.86 and 3.9 times more likely to achieve senior professional and international levels than BQ1s and BQ2s, respectively. It is suggested that relatively younger players may have a greater likelihood of achieving expertise following entry into a rugby union talent pathway due to benefitting from more competitive play against relatively older counterparts during their development (e.g., reversal effects; the underdog hypothesis). Moreover, possible solutions (e.g., age and anthropometric banding; playing-up and playing-down) are discussed to encourage practitioners and policy makers to create the most appropriate learning environment for every player.
Collapse
Affiliation(s)
- Adam L. Kelly
- Department of Sport and Exercise, Research Centre for Life and Sport Sciences (CLaSS), School of Health Sciences, Birmingham City University, Birmingham, United Kingdom
| | - Kevin Till
- Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom
| | - Daniel Jackson
- Department of Sport and Exercise, Research Centre for Life and Sport Sciences (CLaSS), School of Health Sciences, Birmingham City University, Birmingham, United Kingdom
| | | | - Kate Burke
- Rugby Football Union, London, United Kingdom
| | - Jennifer Turnnidge
- PLAYS Research Group, School of Kinesiology and Health Studies, Queen's University, Kingston, ON, Canada
| |
Collapse
|
28
|
Götze M, Hoppe MW. Relative Age Effect in Elite German Soccer: Influence of Gender and Competition Level. Front Psychol 2021; 11:587023. [PMID: 33542698 PMCID: PMC7852549 DOI: 10.3389/fpsyg.2020.587023] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 12/02/2020] [Indexed: 11/29/2022] Open
Abstract
The relative age effect (RAE) is associated with (dis)advantages in competitive sports. While the RAE in elite male soccer reveals a skewed birthdate distribution in relation to a certain cut-off date, research of RAE in elite female soccer is affected by small number of samples and conflicting results. The purpose of this study was to investigate the RAE in elite adult German soccer regarding gender and competition level. The sample comprised 680 female and 1,083 male players of the two top German leagues during the 2019/20 season and German national teams (A-Team to Under 19). Differences between the observed and expected birthdate distributions were analyzed using chi-square statistics and effect sizes followed by calculating odds ratios. Results showed a statistically significant RAE with small effect size across all players included for both genders (female players: P < 0.001, W = 0.16, male players: P < 0.001, W = 0.23). The identified RAE was based on an over-representation of players born at the beginning of the year. According to gender and competition level, RAEs were more pronounced in German male soccer. While significant RAEs were found among males in the first two leagues (first league: P < 0.001, W = 0.19, second league: P < 0.001, W = 0.26), the RAE of females was more pronounced in the second league (first league: P = 0.080, W = 0.16, second league: P = 0.002, W = 0.20). The analysis of RAE regarding the national teams revealed a statistically significant RAE with large effect size for only the youngest investigated age group of male players (Under 19: P = 0.022, W = 0.52). Our data show an RAE in female and male German adult soccer, which could be accompanied by a loss of valuable elite players during the youth phase of the career. Consequently, the pool of talented players at the adult level would be limited.
Collapse
Affiliation(s)
- Martin Götze
- Faculty of Sport Science, Institute of Movement and Training Science I, University of Leipzig, Leipzig, Germany.,Institute for Applied Training Science, Leipzig, Germany
| | - Matthias W Hoppe
- Faculty of Sport Science, Institute of Movement and Training Science I, University of Leipzig, Leipzig, Germany
| |
Collapse
|
29
|
Kelly A, Wilson MR, Jackson DT, Goldman DE, Turnnidge J, Côté J, Williams CA. A multidisciplinary investigation into "playing-up" in academy football according to age phase. J Sports Sci 2020; 39:854-864. [PMID: 33203302 DOI: 10.1080/02640414.2020.1848117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In an attempt to facilitate more appropriate levels of challenge, a common practice in academy football is to play-up talented youth players with chronologically older peers. However, the context of playing-up in academy football is yet to be empirically explored. Thus, the purpose of this study was to examine the multidimensional factors that differentiated players who play-up from those who do not. Ninety-eight participants from a single football academy were examined within their age phase: Foundation Development Phase (FDP; under-9 to under-11; n = 40) and Youth Development Phase (YDP; under-12 to under-16; n = 58). Drawing upon the FA Four Corner Model, 27 factors relating to Technical/Tactical, Physical, Psychological, and Social development were assessed. Following MANOVA analysis within both the FDP and YDP, significant differences were observed for Technical/Tactical and Social sub-components (P < 0.05). Further differences were observed for Physical and Psychological sub-components (P < 0.05) within the YDP. In sum, Technical/Tactical and Social characteristics appeared to differentiate those who play-up compared to those who do not within the FDP. In the YDP however, there were measures representing all sub-components from the FA Four Corner Model. Subsequently, it is suggested coaches and practitioners consider these holistic factors when playing-up youth football players within relevant age-phases.
Collapse
Affiliation(s)
- Adam Kelly
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, UK.,College of Life & Environmental Sciences, University of Exeter, Exeter, UK
| | - Mark R Wilson
- College of Life & Environmental Sciences, University of Exeter, Exeter, UK
| | - Daniel T Jackson
- Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, UK
| | - Daniel E Goldman
- School of Kinesiology and Health Studies, Queen's University, Kingston, Canada
| | - Jennifer Turnnidge
- School of Kinesiology and Health Studies, Queen's University, Kingston, Canada
| | - Jean Côté
- School of Kinesiology and Health Studies, Queen's University, Kingston, Canada
| | - Craig A Williams
- College of Life & Environmental Sciences, University of Exeter, Exeter, UK
| |
Collapse
|
30
|
Kelly AL, Jackson DT, Taylor JJ, Jeffreys MA, Turnnidge J. "Birthday-Banding" as a Strategy to Moderate the Relative Age Effect: A Case Study Into the England Squash Talent Pathway. Front Sports Act Living 2020; 2:573890. [PMID: 33345136 PMCID: PMC7739587 DOI: 10.3389/fspor.2020.573890] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 09/07/2020] [Indexed: 11/23/2022] Open
Abstract
The relative age effect (RAE) is almost pervasive throughout youth sports, whereby relatively older athletes are consistently overrepresented compared to their relatively younger peers. Although researchers regularly cite the need for sports programs to incorporate strategies to moderate the RAE, organizational structures often continue to adopt a one-dimensional (bi)annual-age group approach. In an effort to combat this issue, England Squash implemented a “birthday-banding” strategy in its talent pathway, whereby young athletes move up to their next age group on their birthday, with the aim to remove particular selection time points and fixed chronological bandings. Thus, the purpose of this study was to examine the potential effects of the birthday-banding strategy on birth quarter (BQ) distributions throughout the England Squash talent pathway. Three mixed-gender groups were populated and analyzed: (a) ASPIRE athletes (n = 250), (b) Development and Potential athletes (n = 52), and (c) Senior team and Academy athletes (n = 26). Chi-square analysis and odds ratios were used to test BQ distributions against national norms and between quartiles, respectively. Results reveal no significant difference between BQ distributions within all three groups (P > 0.05). In contrast to most studies examining the RAE within athlete development settings, there appears to be no RAE throughout the England Squash talent pathway. These findings suggest that the birthday-banding strategy may be a useful tool to moderate RAE in youth sports.
Collapse
Affiliation(s)
- Adam L Kelly
- Department of Sport and Exercise, Research Centre for Life and Sport Sciences (CLaSS), Birmingham City University, Birmingham, United Kingdom
| | - Daniel T Jackson
- Department of Sport and Exercise, Research Centre for Life and Sport Sciences (CLaSS), Birmingham City University, Birmingham, United Kingdom
| | - Josh J Taylor
- Independent Researcher, National Squash Centre, Manchester, United Kingdom
| | - Mark A Jeffreys
- Department of Sport and Exercise, Research Centre for Life and Sport Sciences (CLaSS), Birmingham City University, Birmingham, United Kingdom.,Independent Researcher, National Squash Centre, Manchester, United Kingdom
| | - Jennifer Turnnidge
- PLAYS Research Group, School of Kinesiology and Health Studies, Queen's University, Kingston, ON, Canada
| |
Collapse
|
31
|
Kelly AL, Wilson MR, Jackson DT, Turnnidge J, Williams CA. Speed of Thought and Speed of Feet: Examining Perceptual-Cognitive Expertise and Physical Performance in an English Football Academy. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s42978-020-00081-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThe world’s greatest professional football players are able to execute effective tactical decisions as well as fulfil various physical demands. However, the degree to which both are associated with greater potential in a football academy is unknown. Therefore, the aim of this study was to investigate decision-making skill and physical performance as contributing factors to coach potential rankings in an English football academy. Ninety-eight outfield academy players (Foundation Development Phase [FDP] under-9 to under-11 n = 40; Youth Development Phase [YDP] under-12 to under-16 n = 58) participated in the study. They engaged in 45 film-based simulations at two occlusion phases (e.g., the visual display is cut-off at a precise time during an action), firstly “during” and secondly “post” execution, to examine decision-making skill. Participants also completed four fitness tests to examine physical performance. A classification of “higher-potentials” (top third) and “lower-potentials” (bottom third) were applied through coach rankings. Independent t-tests compared the decision-making and physical performance tests. Higher-potentials made significantly more accurate decisions within the “post” phase within the FDP (P < 0.05) and the “during” phase within the YDP (P < 0.05). Additionally, higher-potentials were significantly faster for the 0–30 m sprint in both the FDP and YDP (P < 0.05), with higher-potentials within the YDP also significantly faster in the 0–10 m sprint (P < 0.05) and jumped significantly higher in the countermovement jump (P < 0.05). These findings indicated that greater football potential may be associated with superior perceptual-cognitive expertise and quicker sprint ability in both academy age phases, with a greater discriminatory function within the older cohort.
Collapse
|
32
|
Kelly A, Wilson MR, Jackson DT, Williams CA. Technical testing and match analysis statistics as part of the talent development process in an English football academy. INT J PERF ANAL SPOR 2020. [DOI: 10.1080/24748668.2020.1824865] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Adam Kelly
- Research Centre for Life and Sport Sciences (Class), School of Health Sciences, Department of Sport and Exercise, Birmingham City University, Birmingham, UK
- College of Life & Environmental Sciences, University of Exeter, Exeter, UK
- Exeter City Football Club, Exeter, UK
| | - Mark R. Wilson
- College of Life & Environmental Sciences, University of Exeter, Exeter, UK
| | - Daniel T. Jackson
- Research Centre for Life and Sport Sciences (Class), School of Health Sciences, Department of Sport and Exercise, Birmingham City University, Birmingham, UK
| | - Craig A. Williams
- College of Life & Environmental Sciences, University of Exeter, Exeter, UK
| |
Collapse
|