نتایج جستجو برای: young football players

تعداد نتایج: 294384  

Journal: :Journal of physical activity & health 2009
Yvonne M Golightly Stephen W Marshall Leigh F Callahan Kevin Guskiewicz

BACKGROUND Injury has been identified as a potential risk factor for osteoarthritis. However, no previous study has addressed playing-career injuries and subsequent osteoarthritis in a large sample of former athletes. The purpose of this study was to describe the prevalence and determinants of arthritis and osteoarthritis in retired professional football players. METHODS Self-reported arthrit...

2017
Andrew R. Peterson Adam J. Kruse Scott M. Meester Tyler S. Olson Benjamin N. Riedle Tyler G. Slayman Todd J. Domeyer Joseph E. Cavanaugh M. Kyle Smoot

BACKGROUND There are approximately 2.8 million youth football players between the ages of 7 and 14 years in the United States. Rates of injury in this population are poorly described. Recent studies have reported injury rates between 2.3% and 30.4% per season and between 8.5 and 43 per 1000 exposures. HYPOTHESIS Youth flag football has a lower injury rate than youth tackle football. The concu...

Journal: : 2022

The contradictory influence of parents on the motivation and athletic achievements young athletes requires justification new approaches in working with them. purpose work was to develop test a program improve psychological pedagogical competence football players’ evaluate its effectiveness terms training players. experiment involved players at age 10 11 years, 34 athletes. All participants were...

Journal: :researchers in sport science quarterly 2011
h mohebbi n rahnama m moghadassi k ranjbar

the aim of this study was to determine the effect of creatine supplementation on sprint and skill performance in young soccer players. seventeen young soccer players (mean age: 17.18 ± 1.37 y, mean high: 169.6 ± 6.17 cm and mean weight: 61.67 ± 1.37 kg) participated in this study. subjects were assigned to either a creatine (5 g of cr, 4 times per day for 7 days) or a placebo group (same dosage...

2015
Miao He Ricardo Cachucho Arno J. Knobbe

A lot of money is involved with the transfers of top players in the big European football leagues. For various reasons, obtaining a good economic valuation of football players throughout the year is valuable, in other words, not just when a player has just transferred. Furthermore, it is relevant to consider how the market value of a player relates to the performance of that player. Both these ...

2015
Michael M. Roy Daniel Memmert Anastasia Frees Joseph Radzevick Jean Pretz Benjamin Noël

People high in rumination are good at tasks that require persistence whereas people low in rumination is good at tasks that require flexibility. Here we examine real world implications of these differences in dynamic, team sport. In two studies, we found that professional male football (soccer) players from Germany and female field hockey players on the US national team were lower in rumination...

Journal: :physiology and pharmacology 0
farzad nazem department of physical education and sport science, bu-ali sina university, hamedan, iran ali heidarianpour department of physical education and sport science, bu-ali majid kozechian

introduction: it appears that some risk factors for coronary heart diseases (chd) initiate their influence in the childhood period and their clinical complications start to take effect in adulthood. it is possible that adolescent active or sedentary boys, have other inflammatory silent risk factors of chd, in addition to routine risk factors such as lipid profile. however, the scientific data a...

Journal: :Journal of sports science & medicine 2010
Daniel Memmert

This is a twofold study with the goals of evaluating tactical oriented game test situations for 12-13-year old highly-talented soccer players and to analyze dynamic, intra-individual developments of the players. A cross-sectional design was carried in study 1, using game test situations to measure specific tactics and creative performance for 195 expert players. The results from five evaluation...

2013
Lewis Margolis Gregory Margolis

August 15, 2013 BY Lewis Margolis and Gregory Margolis In a situation with unsettling similarities to the infamous "Tuskegee Study of Untreated Syphilis in the Negro Male," youth and college football players today are part of what amounts to a massive and unethical experiment in concussions. The Tuskegee Study violated basic bioethical principles of respect for autonomy (participants were not f...

2015
Myosotis Massidda Nir Eynon Valeria Bachis Laura Corrias Claudia Culigioni Francesco Piras Paolo Cugia Marco Scorcu Carla M. Calò

BACKGROUND The aim of this study was to investigate the association between MCT1 rs1049434 polymorphism and indirect muscle injuries in elite football players. One hundred and seventy-three male elite Italian football players (age = 19.2 ± 5.3 years) were recruited from a first-league football club participating at the Official National Italian Football Championship (Serie A, Primavera, Allievi...

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