Relationship between anatomical injury site of rectus femoris muscle strain and time taken to return to play in Japanese professional soccer players by Kengo Shimozaki, Junsuke Nakase, Kazuki Asai, Rikuto Yoshimizu, Mitsuhiro Kimura, Tomoyuki Kanayama, Yusuke Yanatori, Hiroyuki Tsuchiya

“…Methods Thirteen Japanese professional soccer players who sustained injuries to the rectus femoris were included in this study. …”
Get full text

Epidemiological Data on LCL and PCL Injuries Over 17 Seasons in Men’s Professional Soccer: The UEFA Elite Club Injury Study by Lundblad M, Hägglund M, Thomeé C, Hamrin Senorski E, Ekstrand J, Karlsson J, Waldén M

“…In total, 58% (63/108) of all LCL injuries and 54% (14/26) of all PCL injuries were related to contact mechanism.Conclusion: This study with prospectively registered data on LCL and PCL injuries in men’s professional soccer shows that the median lay-off from soccer for LCL and PCL injuries is approximately 2 and 4 weeks respectively. …”
Get full text

The New Generation of Professional Soccer Talent Is Born under the Bias of the RAE: Relative Age Effect in International Male Youth Soccer Championships by Benito Pérez-González, Jairo León-Quismondo, José Bonal, Pablo Burillo, Álvaro Fernández-Luna

“…In the present study, we analyzed the existence of the Relative Age Effect (RAE) in four major male championships that, due to their importance and participating teams, most likely brought together the great bulk of the players who will dominate professional soccer in the next decade. Participants were professional and amateur youth male soccer players who participated in the last international championships: UEFA European Under-21 Championship (2017–2019); UEFA European Under-19 Championship (2019); South American Youth Football Championship (also known as Conmebol U-20) (2019); and FIFA U-20 World Cup (2019), with 823 players (20.25 ± 0.84 years). …”
Get full text

Relationships Between Aerobic Performance, Hemoglobin Levels, and Training Load During Small-Sided Games: A Study in Professional Soccer Players by Saeid Younesi, Alireza Rabbani, Filipe Manuel Clemente, Filipe Manuel Clemente, Rui Silva, Hugo Sarmento, António José Figueiredo

“…The purposes of this study were (1) to analyze between-session variations of external and internal load measures during small-sided games (SSGs) and (2) to test the relationships between the maximum speed reached (VIFT) during the last stage of the 30-15 Intermittent Fitness Test, hemoglobin levels, and training load measures during SSG intervals among professional soccer players. Sixteen professional soccer players (mean ± SD; age 27.2 ± 3.4 years, height 174.2 ± 3.6 cm, body mass 69.1 ± 6.4 kg, and body fat 10.4 ± 4.1%) participated in this study. …”
Get full text

Exercise-associated muscle cramps and creatine kinase responses after workload spikes in a professional soccer player: a case study by Adriano Alves, Igor Soalheiro, João Claudino, Gerson Rocha, Daniel Boullosa, André Alves, Eduardo Pimenta

Get full text

Effects of 30 days of ketogenic diet on body composition, muscle strength, muscle area, metabolism, and performance in semi-professional soccer players by A. Antonio Paoli, Laura Mancin, Massimiliano Caprio, Elena Monti, Marco V. Narici, Lorenzo Cenci, Fabio Piccini, Matteo Pincella, Davide Grigoletto, Giuseppe Marcolin

“…We sought to investigate the influence of a KD on different parameters in semi-professional soccer players. Methods Subjects were randomly assigned to a iso-protein (1.8 g/Kg body weight/day) ketogenic diet (KD) or western diet (WD) for 30 days. …”
Get full text

Severe CTE and TDP-43 pathology in a former professional soccer player with dementia: a clinicopathological case report and review of the literature by Suzan van Amerongen, Suzie Kamps, Kyra K. M. Kaijser, Yolande A. L. Pijnenburg, Philip Scheltens, Charlotte E. Teunissen, Frederik Barkhof, Rik Ossenkoppele, Annemieke J. M. Rozemuller, Robert A. Stern, Jeroen J. M. Hoozemans, Everard G. B. Vijverberg

“…This study presents a clinicopathological case of a former professional soccer player with young-onset dementia. The patient experienced early onset progressive cognitive decline and developed dementia in his mid-50 s, after playing soccer for 12 years at a professional level. …”
Get full text

Development of an Educational Program for Non-Professional Soccer Coaches in Charge of Community-Based Soccer in Men with Prostate Cancer: a Qualitative Study by Eik Dybboe Bjerre, Mette Leth, Nanna Maria Hammer, Julie Midtgaard

“…Step 2 included stakeholder focus group interviews with nurses (n = 5), non-professional soccer coaches and club representatives (n = 5), and prostate cancer survivors (n = 7). …”
Get full text

Income tax implications from the transfer of soccer players in South Africa by Siphamandla Makhaya, Lizanne Barnard

Subjects: Get full text

Are non-starters accumulating enough load compared with starters? Examining load, wellness, and training/match ratios of a European professional soccer team by Rafael Oliveira, Rui Canário-Lemos, Ryland Morgans, Tiago Rafael-Moreira, José Vilaça-Alves, João Paulo Brito

“…Abstract Background The aims of the study were to: (i) compare accumulated load and wellness between starters and non-starters of a European professional soccer team; (ii) analyze the relationships between wellness and load measures and; (iii) compare training/match ratio (TMr) of external and internal load between starters and non-starters. …”
Get full text

The Effects of Lower Extremity Kinesio Taping on Temporal and Spatial Parameters of Gait Initiation in Semi-professional Soccer Players With and Without Functional Ankle Instabilit by Sara Fereydounnia, Azadeh Shadmehr, Behrouz Attarbashi Moghadam, Saeed Talebian Moghadam, Seyed Mohsen Mir, Parsa Salemi, Fereshteh Pourkazemi

Get full text

Center backs work hardest when playing in a back three: The influence of tactical formation on physical and technical match performance in professional soccer by Leon Forcher, Leander Forcher, Darko Jekauc, Alexander Woll, Timo Gross, Stefan Altmann

“…The purpose of this study was to investigate whether tactical formation affects the physical and technical match performance of professional soccer players in the first German Bundesliga. …”
Get full text

The relationships between ACTN3 rs1815739 and PPARA-α rs4253778 gene polymorphisms and athletic performance characteristics in professional soccer players by Celal Bulgay, Ladislav Cepicka, Metin Dalip, Selin Yıldırım, Halil İ. Ceylan, Özlem Ö. Yılmaz, Korkut Ulucan, Georgian Badicu, Mesut Cerit

Get full text

Contribution of team positional data to the successful transitions during ball recovery in soccer. (Analysis of official matches of J-League professional soccer players) by Satoki MURAI, Makoto AYABE, Takashi OYAMA, Kaito MITANI, Hideaki KUMAHARA, Shunsuke SUNAMI, Satoshi ISHIZAKI

“…The independent variable in this analysis was the positional data gathered from the Vector X7 system (10 Hz) during 20 official matches of the second division of the Japan Professional Soccer League for the 2022 season. The positional data included metrics such as team convex area, length, width, foremost position, rearmost position, rightmost position, and leftmost position. …”
Get full text

Comunicação interatrial e hipertensão pulmonar em atleta profissional de futebol Atrial septal defect and pulmonary hypertension in professional soccer player by Fernando Bianchini Cardoso, Marcos Bianchini Cardoso, Roberto Itiro Nishimura, Georgiane Crespi Ponta, Gustavo Calado de Aguiar Ribeiro, Cledcyson Eloy Costa

“…<br>This study reports a rare case of late diagnosis of atrial septal defect (ASD) with pulmonary hypertension (PH) through two-dimensional echocardiography (ECHO) in a professional soccer player who resumed high-performance sports activity after surgery.…”
Get full text

Center backs work hardest when playing in a back three: The influence of tactical formation on physical and technical match performance in professional soccer. by Leon Forcher, Leander Forcher, Darko Jekauc, Alexander Woll, Timo Gross, Stefan Altmann

“…The purpose of this study was to investigate whether tactical formation affects the physical and technical match performance of professional soccer players in the first German Bundesliga. …”
Get full text

Internal and external load during on-field training drills with an aim of improving the physical performance of players in professional soccer: a retrospective observational study by Linda Ammann, Paweł Chmura

“…In general, the importance of individual load management in professional soccer is highlighted.…”
Get full text

Inertial flywheel knee- and hip-dominant hamstring strength exercises in professional soccer players: Muscle use and velocity-based (mechanical) eccentric overload. by Luis Suarez-Arrones, F Javier Núñez, Pilar Lara-Lopez, Valter Di Salvo, Alberto Méndez-Villanueva

Get full text

Effects of peppermint oil inhalation on vertical jump performance in elite young professional soccer players: A double-blinded randomized crossover study by Alex Ambrosio Rites, Pablo Merino-Muñoz, Fabiano Ribeiro, Bianca Miarka, Veronica Salermo, Diego Viana Gomes, Ciro José Brito, Esteban Aedo-Muñoz

Get full text

The Interplay Between Plasma Hormonal Concentrations, Physical Fitness, Workload and Mood State Changes to Periods of Congested Match Play in Professional Soccer Players by Karim Saidi, Karim Saidi, Abderraouf Ben Abderrahman, Daniel Boullosa, Grégory Dupont, Anthony C. Hackney, Benoit Bideau, Thomas Pavillon, Urs Granacher, Hassane Zouhal

“…Mood monitoring could be a simple and useful tool to determine the degree of preparedness for match play during a congested period in professional soccer.…”
Get full text