The verbal feedback given to junior soccer players potentially heading to a professional career is essential for technical and tactical skill development. The aim of this study is to examine whether differences exist in feedback between coaches of junior elite soccer teams and coaches of junior amateur soccer teams. The coaches of a junior elite soccer team and a junior amateur soccer team in N...

BACKGROUND Sudden cardiac death in competitive athletes is rare but it is significantly more frequent than in the normal population. The exact cause is seldom established and is mostly attributed to ventricular fibrillation. Myocardial hypertrophy and slow heart rate, both characteristic changes in top athletes in response to physical conditioning, could be associated with increased propensity ...

The purpose of this study was to examine the effects of static, dynamic, and the combination of static and dynamic stretching within a pre-exercise warm-up on the Illinois agility test (IAT) in soccer players. Nineteen professional soccer players (age = 22.5 ± 2.5 years, height = 1.79 ± 0.003 m, body mass = 74.8 ± 10.9 kg) were tested for agility performance using the IAT after different warm-u...

The EA Sports Player Performance Index is a rating system for soccer players used in the top two tiers of soccer in England—the Premier League and the Championship. Its development was a collaboration among professional soccer leagues, a news media association, and academia. In this paper, we describe the index and its construction. The novelty of the index lies in its attempts to rate all play...

AIM Objective of the study was to examine the injury incidence in the Spanish Professional Soccer League, and to analyse differences between competition and training. METHODS Sport injuries data from 11 out of 22 Spanish second division soccer teams (301 players) were prospectively collected during the season 2008/2009. RESULTS A total of 891 injuries (111 recurrence injuries) were identifi...

We previously found an increased risk for ALS in Italian professional soccer players actively engaged between 1970 and 2001 (n =7325). The present study extends previous work with a prospective follow-up of the original cohort to 2006 and investigates the risk of ALS in two other cohorts of professional athletes, basketball players (n =1973) and road cyclists (n =1701). Standardized morbidity r...

The minimax argument represents game theory in its most elegant form: simple but with stark predictions. Although some of these predictions have been confirmed in field data, tests of minimax have generally failed in laboratory experiments that make use of student subjects. In a seminal study, Palacios-Huerta and Volij (2007) present evidence that potentially resolves this puzzle: soccer player...

The aim was to determine the volume and degree of asymmetry of quadratus lumborum (QL), obliques, and transversus abdominis; the last two considered conjointly (OT), in tennis and soccer players. The volume of QL and OT was determined using magnetic resonance imaging in professional tennis and soccer players, and in non-active controls (n = 8, 14, and 6, respectively). In tennis players the hyp...