Background: The present study was conducted to investigate the possible effects of L-carnitine and glutamine and their synergistic effects on male soccer athletes. Methods: 28 male soccer players (21.1 ± 0.7 y) were enrolled in a randomized pre and post intervention, double-blind design. Before the intervention, their performances were assessed by Bruce protocol, and their body compositi...

In this paper, we evaluate the player segmentation for trajectory estimation in soccer games. In order to estimate the field trajectories of players in soccer games, we should accurately locate the foot positions of players in each soccer image and transform them into those in the soccer field. However, we cannot always segment the players completely, since players are often motion-blurred due ...

In the present study, to investigate the effect of glucosamine, a component of glycosaminoglycans with a chondroprotective action, on articular cartilage in athletes, we looked at soccer players, who expose their joints to excessive motion and loading, and compared the levels of biomarkers for type II collagen degradation (CTX-II) and type II collagen synthesis (CPII) between soccer players and...

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...

PURPOSE To determine the volume and degree of asymmetry of the rectus abdominis muscle (RA) in professional soccer players. METHODS The volume of the RA was determined using magnetic resonance imaging (MRI) in 15 professional male soccer players and 6 non-active male control subjects. RESULTS Soccer players had 26% greater RA volume than controls (P<0.05), due to hypertrophy of both the dom...

In this paper, we propose a method of tracking soccer players using multiple views. As many researches have done on soccer scene analysis by using trajectories of the players and the soccer ball, it is desirable to track soccer players robustly. Soccer player tracking enables strategy analysis, scene recovery, making scenes for broadcasting, and automatic system of the camera control. However, ...

In this study, we investigate the general parameters to evaluate the performance of soccer players and develop a database for performance evaluation of soccer players and a relevant decision support system (DSS) to help people such as technical director. In the proposed DSS, the data is collected by Data Collectors by using a proposed database. It helps the technical director to realize the per...

BACKGROUND The injury rate in soccer is high, and studies have shown that the injury rate among players aged 16 years or older approaches that of adult players. However, little is known about the injury risk among the youngest players, that is, players between 6 and 12 years. PURPOSE To examine the risk of injuries in children 6 to 16 years old playing organized soccer. STUDY DESIGN Descrip...

skillful performance in soccer requires not only sound techniques but also quickand accurate decision making. these decisions are usually made in variousintensities of practice and performance. the main aim of this study was toinvestigate the effect of different levels of arousal and training intensity on decisionmaking (speed and accuracy) of expert female soccer players. for this purpose, 16e...

Many previous studies have focused on youth soccer player injuries without body component analysis compared to non-athletes. Only a few studies which have investigated body components of youth soccer players, and studies that look at electrical characteristics used by rheobase and chronaxie as well as body components are even scarcer. Therefore, we feel that there is a need for a study investig...