نتایج جستجو برای: 2008 season ten male elite soccer referees age 3623224 years

تعداد نتایج: 1881146  

Journal: :Journal of neurotrauma 2017
Inga K Koerte Elizabeth Nichols Yorghos Tripodis Vivian Schultz Stefan Lehner Randy Igbinoba Alice Z Chuang Michael Mayinger Eliana M Klier Marc Muehlmann David Kaufmann Christian Lepage Florian Heinen Gerd Schulte-Körne Ross Zafonte Martha E Shenton Anne B Sereno

Worldwide, more than 22 million children and adolescents are exposed to repetitive head impacts (RHI) in soccer. Evidence indicates cumulative effects on brain structure, but it is not known whether exposure to RHI affects cognitive improvement in adolescents. The aim of the study was to determine whether exposure to RHI while heading the ball in soccer affects improvement in cognitive performa...

2017
Oliver Ludwig Steven Simon Stephan Becker Franz Marschall Filipe Manuel Clemente

More than 70% of all knee injuries in soccer occur in non-contact situations. It is known that increased lower limb dynamic knee valgus is associated with such situations. Little has been found out about differences in knee kinematics of the dominant (kicking) and non-dominant (supporting) leg during a single leg landing. A total of 114 male adolescent soccer players (age 14.6 ± 1.1 years) from...

2003
Paul Ward Mark Williams

This study examined the relative contribution of visual, perceptual, and cognitive skills to the development of expertise in soccer. Elite and sub-elite players, ranging in age from 9 to 17 years, were assessed using a multidimensional battery of tests. Four aspects of visual function were measured: static and dynamic visual acuity; stereoscopic depth sensitivity; and peripheral awareness. Perc...

Journal: :Journal of strength and conditioning research 2002
Carlo Castagna Grant Abt Stefano D'Ottavio

The aim of this study was to examine the relationship between selected blood lactate thresholds and competitive match activities in elite soccer referees. Eight elite-level referees (mean age, 37.6 +/- 3.4 years) were each observed during 2 Serie A matches (n = 16), and the mean of each match activity was used for analysis. Match activities were monitored using a technology similar to that repo...

Journal: :Cardiovascular Ultrasound 2008
G Galanti A Pizzi M Lucarelli L Stefani M Gianassi V Di Tante L Toncelli A Moretti F Del Furia

BACKGROUND During a soccer game, the cardiovascular system is severely taxed The referees must be alert and their level of fitness must be such that fatigue will not impair their decision-making. Referee's peak overall performance is usually after 40 when the performance starts to decline. We evaluated the morphological and functional cardiac profile of professional soccer referees. MATERIALS...

2011
Angelini Bonuccelli Fabrizio Marzatico Gianluca Stesina Luca Stefanini Daniela Buonocore Sara Rucci Fabrizio Tencone Luca Gatteschi Fabrizio Angelini

Background The body composition and its variation in time can affect the performances of soccer players. The body composition measuring techniques are based on a quantitative approach founded on indirect estimations of fat mass and lean body mass. The BIVA allows us to directly see the athlete’s body composition by means of impedance vector measuring (Z vector), irrespective of weigh and body h...

2014
Javier Mallo Holger P. Schmitt

The aim of this study was to examine the injury incidence and characteristics of a Spanish female elite soccer team (n=22 players) during an entire competitive season. Time loss injuries and individual exposure times were recorded during all team training sessions and matches during the 2009-2010 season, following the Union des Associations Européennes de Football (UEFA) consensus statement on ...

2017
Torbjörn Vestberg Gustaf Reinebo Liselotte Maurex Martin Ingvar Predrag Petrovic

Physical capacity and coordination cannot alone predict success in team sports such as soccer. Instead, more focus has been directed towards the importance of cognitive abilities, and it has been suggested that executive functions (EF) are fundamentally important for success in soccer. However, executive functions are going through a steep development from adolescence to adulthood. Moreover, mo...

2017
Gerrit Bode Thorsten Hammer N Karvouniaris M J Feucht L Konstantinidis N P Südkamp A Hirschmüller

BACKGROUND The prevalence of patellar tendinopathy is elevated in elite soccer compared to less explosive sports. While the burden of training hours and load is comparably high in youth elite players (age < 23 years), little is known about the prevalence of patellar tendinopathy at this age. There is only little data available on the influence of age, the amount of training, the position on the...

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