the aim of this study was to examine the relationship between coaching self-efficacy and iran premier league wrestlers' sport commitment. the research method was descriptive-correlation. the wrestlers from 8 teams (n=120) including all wrestlers in iran premier league (2012) completed demographic questionnaire, coaching self-efficacy scale (feltz et al., 1999), and sport commitment questio...

this study aimed at prioritizing interactive components affecting fans' revisiting the websites of iran selected football premier league clubs. the research method was survey and data were gathered through internet. the statistical population consisted of those fans who were the members of websites of esteghlal, perspolis, tractorsazi, damash and sepahan clubs (n=26000) in march and april,...

Hamstring injuries constitute one of the most concerning injuries in English Premier League football, due to its high primary incidence but also its recurrence. Functional methods assessing hamstring function during high-risk performance tasks such as sprinting are vital to identify potential risk factors. The purpose of this study was to assess horizontal force deficits during maximum sprint r...

Coaches, fans and the media identify successful football performance as finishing as high in the league as possible. Recently, research has indicated that possession, shots at goal, and goals scored are key performance indicators for successful football teams. There is however, a lack of understanding of other potential attacking and defensive performance variables that may contribute to succes...

In this paper we look at statistical models for predicting the outcome of football matches in a league. That is, our aim is to find a statistical model which, based on the game-history so far in a season, can predict the outcome of next round’s matches. Many such models exist, but we are not aware of a thorough comparison of the models’ merits as betting models. In this paper we look at some cl...

the aim of this study was to investigate the role of stress in the relationship between emotional intelligence (ei) and mental health in iran football referees. method was correlational conducted as a field study. statistical population consisted of all referees and assistant referees of iran football premier league (2012-2013 season) (n= 79) and the sample was equal to the population. general ...

This article presents a novel model for evaluating the performance of field players in football. Based upon Data Envelopment Analysis (DEA), we employ a nonconcave metafrontier approach that permits estimation of players’ efficiency scores under consideration of their playing positions. The model is applied to a data set of Germany’s premier league football players covering the playing seasons ...