The selection advantages associated with advanced biological maturation vary according to playing position in national-level youth soccer by Liam Sweeney, Sean Cummin, Áine MacNamara, Dan Horan

“…A total of 159 players from the U13 to U16 age groups in the Football Association of Ireland’s national talent pathway and international representative squads had their relative biological maturity status assessed using the Khamis-Roche method for the percentage of predicted adult height at the time of observation. …”
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Amplifying the effects of adding extra players during association football game-based scenarios. by Diogo Coutinho, Bruno Gonçalves, Hugo Folgado, Bruno Travassos, Sara Santos, Jaime Sampaio

“…This study aimed to compare under-18 association football players' performance (age = 17.7±1.0 years; playing experience = 9.0 ± 3.2 years) when manipulating the number of teammates and opponents during football game-based practices. …”
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How Relative Age Effects Associate with Football Players’ Market Values: Indicators of Losing Talent and Wasting Money by Michael Romann, Marie Javet, Stephen Cobley, Dennis-Peter Born

“…Background: In football, annual age-group categorization leads to relative age effects (RAEs) in talent development. …”
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Analysis of the football players’ actual nutrition by E. E. Keshabyants, N. N. Denisova, E. Yu. Sorokina, R. M. Radzhabkadiev, K. V. Vybornaya

“…Objective: to assess the actual nutrition of football players according to their personal daily energy expenditures.Materials and methods: the study of the actual nutrition of the athletes of the division II football team was carried out at the training camp. …”
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Analysis of Running Performance in the Offensive and Defensive Phases of the Game: Is It Associated with the Team Achievement in the UEFA Champions League? by Toni Modric, Sime Versic, Patrik Drid, Marko Stojanovic, Łukasz Radzimiński, Cyril Bossard, Tomasz Aftański, Damir Sekulic

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Medical Checks for Professional Football Players in Franceville, Gabon by Hervé Martial Ekomy, Joefred Mbogho Abogo, Herman Begouabe, Armel Kinga, Brice Angwe Eboue, Laetitia Pauline Abang Ekouaghe, Jayanta Karmakar, Cedric Sima Obiang

“…Exercise adaptation was also closely associated with age (P = 0.00137724; P = 0.008974301), football position (P = 0.009957548; P = 0.006646182) and alcohol consumption (P = 0.000531971). …”
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Effects of Progressive Muscle Relaxation Technique on the Football Anxiety by Ali Rashidi, Hamid Atash-Poor, Rokhsareh Badami

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Substitute running outputs in elite youth male soccer players: less peak but greater relative running outputs by Michael G. Sydney, Nick Ball, Jocelyn K. Mara, Dale Chapman, Martin Wollin

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Association between ACTN3 R577x and the physical performance of Chinese 13 to 15-year-old elite and sub-elite football players at different positions by Shidong Yang, Shidong Yang, Wentao Lin, Mengmeng Jia, Haichun Chen

“…In conclusion, there were significant differences in ACTN3 genotypes and alleles between elite and sub-elite players at different positions, and the RR genotype was significantly associated with power-related athletic performance in Chinese youth football players.…”
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Model for football player's market values by using artificial neural network / Qoszira Dullah by Dullah, Qoszira

“…By doing this research, it will help people who associated with football transfer such as manager, football agents, and the player themselves to determine the market values for football players playing in the Forward, Midfielder, or Defender position.…”
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Effect of playing position and microcycle days on the acceleration speed profile of elite football players by Antonio Alonso-Callejo, Jorge García-Unanue, Andrés Perez-Guerra, David Gomez, Javier Sánchez-Sánchez, Leonor Gallardo, Jose María Oliva-Lozano, Jose Luis Felipe

“…Abstract The aim of this study was to analyse the differences in the A–S profile of elite football players induced by playing position and the microcycle day. …”
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Relationship between the occurrence of cards, playing position and situational variables in starter and non-starter players in the Brazilian soccer first division championship by Gabriel Silveira Guedes da Maia, Paulo Vitor de Souza, Paulo Roberto Sandi, Guilherme Souza Pereira, Paulo Henrique Borges, Anderson Santiago Teixeira, Elisa Dell’Antonio, Juliano Fernandes da Silva

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Frequency of Self-Reported Concussion Amongst Professional and Semi-Professional Footballers in Ireland During the 2014 Season: a Cross-Sectional Study by Nicola Coffey, Martin Lawless, Seamus Kelly, Conor Buggy

“…Permission to access players was provided by the Professional Footballers Association of Ireland. This convenience sample was determined by club availability in relation to match fixtures. …”
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Match Demands of Women’s Collegiate Soccer by Andrew R. Jagim, Jason Murphy, Alexis Q. Schaefer, Andrew T. Askow, Joel A. Luedke, Jacob L. Erickson, Margaret T. Jones

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Is there any relationship between match running, technical-tactical performance, and team success in professional soccer? A longitudinal study in the first and second divisions of... by José M. Oliva-Lozano, Helena Martínez-Puertas, Víctor Fortes, Roberto López- Del Campo, Ricardo Resta, José M. Muyor

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In-Season Match Demands Of Men’s Collegiate Soccer: A Comparison By Half, Position, Match Outcome, Match Location, And Competition Phase by Richard Aziz, Margaret T. Jones, Andrew R. Jagim, Mary Kate Feit, Nicholas Kuhlman Kuhlman, Thomas Crabhill, Jennifer B. Fields

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Brain regions concerned with the identification of deceptive soccer moves by higher-skilled and lower-skilled players by Michael eWright, Daniel Tony Bishop, Robin eJackson, Bruce eAbernethy, Bruce eAbernethy

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Post Editorial by Tarik Sabry

“…Coverage included a historical take on the censorship of film, concentrating on the role of local councils in the north west of England, a study on celebrity defendants in the USA and work on both player transfers in association football and character merchandising of fictional characters.…”
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A new green deal for climate challenges and urban regeneration by Alessandro Claudi de St. Mihiel

“…Twenty thousand square meters of greenery, the first urban “urban forest”, with 130 trees of various essences, equipped with basketball courts, five-a-side football, skateboard track, playground for children and a cavea for open-air cinema and shows. …”
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