The Fédération Internationale de Football (FIFA) 11+ warm-up program is efficacious at preventing lower limb injury in youth soccer; however, there has been poor adoption of the program in the community. The purpose of this study was to determine the utility of the Health Action Process Approach (HAPA) behavior change model in predicting intention to use the FIFA 11+ in a sample of 12 youth soc...

An 11-item, one-page questionnaire was mailed to 1800 parents chosen at random in the Henrico County, VA public school system. Parents were asked questions such as "who should be responsible for mouthguard wear?" "what sports should require mouthguards?" and "has [their] child ever sustained an oral or facial injury?" The parental responses indicate that mouthguard enforcement is the responsibi...

The aim of this study was to compare performance in sprint, change of direction speed, vertical jump and jump squat tests between elite soccer players from two different age categories (i.e., under-20 and senior players) from the same soccer club. Players performed sprints (average velocity at 5, 10 and 20 m), zig-zag change of direction speed (COD speed), squat and countermovement jump tests a...

Although a considerable literature exists on determinants of managerial compensation, much of it focussing on the role of incentives, there is much less known about the im-pact of managerial remuneration and quality upon attainment of organizational goals. In this paper we use a novel panel data set from the German premier soccer league (Bundesliga) as a case to show how variations in manageria...

General awareness of the potential of mathematics to support sports decision-making has been raised by the movie “Moneyball” through its portrayal of a real professional American baseball club that used mathematical tools to improve team performance. This article addresses the same challenge, using as a test case a fantasy sport game organized by an Argentinian newspaper. Two mathematical progr...

Tactical decisions characterize team sports like soccer or basketball profoundly. Analyses of training sessions and matches (e.g., mileage or pass completion rate of a player) form more and more a crucial base for those tactical decisions. Most of the analyses are video-based, resulting in high operating expenses. Additionally, a highly specialized system with a huge amount of system resources ...

We show that professional soccer players and their coaches exhibit reference-dependent behavior during matches. Controlling for the state of the match and for unobserved heterogeneity, we show on a minute-by-minute basis that players breach the rules of the game, measured by the referee’s assignment of cards, significantly more often if their teams are behind the expected match outcome, measure...

The purpose of this study was to evaluate whether players in different positional roles have a different physical and physiologic profile. For the purpose of this study, physiologic measurements were taken of 270 soccer players during the precompetitive period of 2005/06 and the precompetitive period of 2006/07. According to the positional roles, players were categorized as defenders (n = 80), ...

The identification of talent in soccer is critical to various programs. Although many research findings have been presented, there have been only a few attempts to assess their validity. The aim of this study was to determine the relationship between talent and achievement variables in the Vienna Test System. The participants were 91 Czech soccer players, representing four youth soccer teams, w...

PURPOSE: The aim of this study was to examine the reliability, validity and usefulness of the 30-15IFT in competitive female soccer players. METHODS: Seventeen elite female soccer players participated in the study. A within subject test-retest study design was utilized to assess the reliability of the 30-15 intermittent fitness test (IFT). Seven days prior to 30-15IFT, subjects performed a cont...