IMPORTANCE Despite recent increased awareness about sports concussions, little research has evaluated concussions among middle-school athletes. OBJECTIVES To evaluate the frequency and duration of concussions in female youth soccer players and to determine if concussions result in stopping play and seeking medical care. DESIGN, SETTING, AND PARTICIPANTS Prospective cohort study from March 2...

BACKGROUND There is an established risk of injury to young athletes exposed to high training loads. Identifying and monitoring injury risk is essential to aid prevention. The aim of this study was to use the consensus statement to determine the incidence and pattern of injury in 1 English Premier League soccer academy during 1 season. METHODS A prospective cohort study included 181 elite acad...

This study investigated the presence of neuropsychological deficits associated with hitting the ball with one's head (heading) during soccer play. A neuro-cognitive test battery was administered to 60 male soccer players, high school, amateur and professional level, and 12 nonplaying control participants. The effects of currently reported heading behavior as well as that of estimated lifetime h...

Anterior cruciate ligament (ACL) is the primary stabilizer of the knee. An impairment of any of the dynamic or static stability providing factors can lead to overload on the other factors and ultimately to deterioration of knee stability. This can result in anterior tibial translation and rupture of the ACL. The purpose of this study was to examine the influence of tibial slope on ACL injury ri...

The development of intermittent endurance capacity, its underlying mechanisms and role in reaching professional level in soccer was investigated. The sample included 130 talented youth soccer players aged 14-18, who became professional (n = 53) or non-professional (n = 77) players in adulthood. In total 229 Interval Shuttle Run Test (ISRT) scores were taken over five years. Players who became p...

OBJECTIVE To determine whether the location of spondylolysis in the lumbar spine of athletes differs with biomechanical factors. METHODS Single photon emission computerised tomography and reverse gantry computerised tomography were used to investigate 42 cricketers and 28 soccer players with activity related low back pain. Sites of increased scintigraphic uptake in the posterior elements of t...

OBJECTIVES The purpose of this study was to determine the effect of sports participation on cortical bone in the tibia. METHODS 53 female collegiate athletes (25 cross-country, 16 soccer, and 12 volleyball) and 20 inactive controls had the left distal 20% tibia scanned by pQCT. Cortical volumetric BMD (vBMD) was measured within the cortical shell at the anterior, posterior, medial, and latera...

The aim of the study was to establish the nutritional practices and activity patterns of elite female soccer players. The nutritional intake of 16 female England Soccer players was self-reported over a seven-day period. Participants were provided with written and verbal guidelines for the completion of the diaries. Training details were also recorded, and used in combination with BMR prediction...

purpose adolescents are in increased risk for the development of obesity, while sport has been suggested as an effective means against adolescent obesity. the objectives of this study were to examine (a) the prevalence of overweightness/obesity, (b) the relationship between body mass index (bmi) and body fat percent (bf), and (c) the association between bmi, bf and physical fitness in adolescen...

The current performance requirements in soccer make imperative the use of new technologies for game observation and analysis, such that detailed information about the teams’ actions is provided. This paper summarizes a framework to collect the soccer players and ball positions using one or more Full HD Handycams, placed no more than 20cm apart in the stands, as well as how this framework connec...