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https://www.readbyqxmd.com/read/28326044/geographical-variations-in-the-interaction-of-relative-age-effects-in-youth-and-adult-elite-soccer
#1
Christina Steingröver, Nick Wattie, Joseph Baker, Werner F Helsen, Jörg Schorer
Selection biases based on the use of cut-off dates and the timing of athletes' birthdates have been termed relative age effects. These effects have been shown to differentially affect individuals involved in sport. For example, young male soccer players born early in their age group are overrepresented in elite teams while studies in adult soccer indicated potential carry-over effects from talent development systems. This two-study approach focuses on the processes within multi-year age groups in youth and adult elite soccer and on the role of players' age position within the age band with regard to players' birth year and birth month...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28300648/detection-and-molecular-characterization-of-emergent-gii-p17-gii-17-norovirus-in-brazil-2015
#2
Juliana S R Andrade, Tulio M Fumian, José Paulo G Leite, Matheus R de Assis, Gonzalo Bello, Daiana Mir, Marize P Miagostovich
A newly GII.17 Kawazaki_2014 variant strain was detected recently in Brazil. Phylogenetic analysis reveals at least four independent introduction events of this lineage into this country that took place throughout 2014, coinciding with FIFA World Cup in Brazil, 2014, and Hong Kong has been identified as the most likely source of introduction. This variant emerged in Asia causing outbreaks and replacing prevalent GII.4. Emergence of GII.P17/GII.17 variant emphasizes the need for active laboratory surveillance for NoV including molecular epidemiology and studies on virus evolution...
March 11, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28207979/a-comparison-of-injuries-in-elite-male-and-female-football-players-a-5-season-prospective-study
#3
Jon Larruskain, Jose A Lekue, Nerea Diaz, Adrian Odriozola, Susana M Gil
The aim was to compare the epidemiology of injuries between elite male and female football players from the same club. Injuries and individual exposure time in a male team and a female team, both playing in the Spanish first division, were prospectively recorded by the club's medical staff for five seasons (2010-2015) following the FIFA consensus statement. Total, training and match exposure hours per player-season were 20% higher for men compared to women (P < 0.01). Total, training and match injury incidence were 30-40% higher in men (P ≤ 0...
February 16, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28192831/training-effects-of-the-fifa-11-and-harmoknee-on-several-neuromuscular-parameters-of-physical-performance-measures
#4
Francisco Ayala, Carlos Pomares-Noguera, Francisco Javier Robles-Palazón, Maria Del Pilar García-Vaquero, Ignacio Ruiz-Pérez, Sergio Hernández-Sánchez, Mark De Ste Croix
The main purpose of this study was to analyse the training effects of the FIFA 11+ and Harmoknee on several parameters of physical performance measures in youth amateur football players. 41 adolescent players were randomised within each team into 2 groups (team 1: control vs. FIFA 11+; team 2: control vs. Harmoknee). The FIFA 11+ and Harmoknee groups performed the program 3 times a week for 4 weeks; the control groups completed their usual warm-up routines. 13 physical performance measures (joint range of motion, dynamic postural control, single legged hop limb symmetry, sprint time, jumping height and agility) were assessed...
February 13, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28121188/timing-effect-on-training-session-rating-of-perceived-exertion-in-top-class-soccer-referees
#5
Carlo Castagna, Mario Bizzini, Susana Cristina Araújo Póvoas, Stefano D'Ottavio
PURPOSE: To examine the effect of recall timing on training session rating of perceived exertion (S-RPE) in a population of method procedures well-familiarized athletes, during a 5-days training micro-cycle. METHODS: Fifty-one top class Field Referees (FR, age 38.4±3.3 years; height 181±5.6 cm; body mass 76.8±6.8 kg; body max index, 23.4±1.7 kg·m2; body fat 20.4±3.6%; international refereeing experience 5±3.5 years) from 43 National Football Associations worldwide, preselected by FIFA Refereeing Department for officiating during the FIFA WC 2014 Brazil volunteered for this study...
January 25, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28113149/sports-tournament-predictions-using-direct-manipulation
#6
Romain Vuillemot, Charles Perin
An advanced interface for sports tournament predictions uses direct manipulation to allow users to make nonlinear predictions. Unlike previous interface designs, the interface helps users focus on their prediction tasks by enabling them to first choose a winner and then fill out the rest of the bracket. In real-world tests of the proposed interface (for the 2014 FIFA World Cup tournament and 2015/2016 UEFA Champions League), the authors validated the use of direct manipulation as an alternative to widgets. Using visitor interaction logs, they were able to determine the strategies people use to perform predictions and identify potential areas of improvement for further prediction interfaces...
September 2016: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/28109712/effects-of-long-haul-transmeridian-travel-on-player-preparedness-case-study-of-a-national-team-at-the-2014-fifa-world-cup
#7
Peter M Fowler, Alan McCall, Mark Jones, Rob Duffield
OBJECTIVES: Describe the effects of eastward long-haul transmeridian air travel on subjective jet-lag, sleep and wellness in professional football (soccer) players prior to the 2014 FIFA World Cup in Brazil. DESIGN: Single cohort involving twenty-two male professional football players representing a national football team. METHODS: Data was collected from players prior to and following international travel from Sydney, Australia to Vitoria, Brazil...
September 2, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28087568/effect-of-specific-exercise-based-football-injury-prevention-programmes-on-the-overall-injury-rate-in-football-a-systematic-review-and-meta-analysis-of-the-fifa-11-and-11-programmes
#8
Kristian Thorborg, Kasper Kühn Krommes, Ernest Esteve, Mikkel Bek Clausen, Else Marie Bartels, Michael Skovdal Rathleff
OBJECTIVE: To investigate the effect of FIFA injury prevention programmes in football (FIFA 11 and FIFA 11+). DESIGN: Systematic review and meta-analysis. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Randomised controlled trials comparing the FIFA injury prevention programmes with a control (no or sham intervention) among football players. DATA SOURCES: MEDLINE via PubMed, EMBASE via OVID, CINAHL via Ebsco, Web of Science, SportDiscus and Cochrane Central Register of Controlled Trials, from 2004 to 14 March 2016...
January 13, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28062588/the-fifa-diploma-in-football-medicine
#9
Christian M Schmied
No abstract text is available yet for this article.
December 14, 2016: European Heart Journal
https://www.readbyqxmd.com/read/28060927/acute-effects-of-three-neuromuscular-warm-up-strategies-on-several-physical-performance-measures-in-football-players
#10
Francisco Ayala, Ana Calderón-López, Juan Carlos Delgado-Gosálbez, Sergio Parra-Sánchez, Carlos Pomares-Noguera, Sergio Hernández-Sánchez, Alejandro López-Valenciano, Mark De Ste Croix
No studies have analysed the acute effects of the FIFA 11+ and Harmoknee warm-up programmes on major physical performance measures. The aim of this study was to analyse the acute (post-exercise) effects of the FIFA 11+, Harmoknee and dynamic warm-up routines on several physical performance measures in amateur football players. A randomized, crossover and counterbalanced study design was used to address the purpose of this study. A total of sixteen amateur football players completed the following protocols in a randomized order on separate days: a) FIFA 11+; b) Harmoknee; and c) dynamic warm-up (DWU)...
2017: PloS One
https://www.readbyqxmd.com/read/28031773/developing-talented-soccer-players-an-analysis-of-socio-spatial-factors-as-possible-key-constraints
#11
Jaime Serra-Olivares, Juan C Pastor-Vicedo, Sixto González-Víllora, Israel Teoldo da Costa
Most studies on the identification and development of soccer talent have been one-dimensional in nature. Although some multi-dimensional analyses have been conducted, few research studies have assessed in any depth the socio-spatial factors influencing talent development. The aim of this particular study was to analyse variations in the international representation of clubs (n = 821) and countries (n = 59) in the development of players who took part in the 2014 FIFA Soccer World Cup. Clubs and countries were ranked and divided into quartiles according to the number of players developed between the ages of 15 and 21 (clubs and countries that developed players for at least three years between these ages) and the number of official league matches played by these players up to the age of 23...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/27901341/the-efficacy-and-characteristics-of-warm-up-and-re-warm-up-practices-in-soccer-players-a-systematic-review
#12
Amri Hammami, James Zois, Maamer Slimani, Mark Russel, Ezdine Bouhlel
INTRODUCTION: This review aimed (i) to evaluate the current research that examines the efficacy of warm-up (WU) and re-warm-up (RWU) on physical performance, and (ii) to highlight the WU and RWU characteristics that optimise subsequent performance in soccer players. EVIDENCE ACQUISITION: A computerized search was performed in the PubMed, ScienceDirect and Google Scholar (from 1995 to December 2015) for English-language, peer- reviewed investigations using the terms "soccer" OR "football" AND "warm-up" OR "stretching" OR "post-activation potentiation" OR "pre-activity" OR "re-warm-up" AND "performance" OR "jump" OR "sprint" OR "running"...
November 30, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27900158/injury-prevention-exercise-programmes-in-professional-youth-soccer-understanding-the-perceptions-of-programme-deliverers
#13
James O'Brien, Caroline F Finch
BACKGROUND: There are well-known challenges to implementing injury prevention strategies in amateur soccer, but information from other soccer settings is scarce. This cross-sectional survey analysed the injury prevention perceptions of soccer coaches, fitness coaches and physiotherapists from 4 male teams in a professional youth soccer academy. METHODS: The respondents (n=18) completed a web-based survey relating to lower limb (LL) soccer injuries, the value and practicality of injury prevention exercise programmes (IPEPs) in general and, more specifically, the IPEP endorsed by FIFA, the FIFA 11+...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27885394/sports-specific-differences-in-postsurgical-infections-after-arthroscopically-assisted-anterior-cruciate-ligament-reconstruction
#14
Werner Krutsch, Johannes Zellner, Florian Zeman, Michael Nerlich, Matthias Koch, Christian Pfeifer, Peter Angele
PURPOSE: Post-operative infection after arthroscopically assisted anterior cruciate ligament (ACL) reconstruction is a rare but severe complication, particularly for young and active patients. It is unclear whether the prevalence of knee infection is correlated with the type of sports or the level of performance. METHODS: From 2008 to 2012, the internal single-centre ACL registry of the FIFA Medical Centre of Excellence Regensburg was retrospectively screened for sex, age, time between isolated primary ACL rupture and surgery, surgical technique, rate of infection after ACL reconstruction and the type of sports practised...
November 24, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27869921/2014-fifa-world-cup-brazil-active-surveillance-and-profile-of-health-care-in-the-host-city-of-fortaleza-cear%C3%A3-brazil
#15
Márcio Henrique de Oliveira Garcia, Francisco José de Paula, Jakeline Ribeiro Barbosa, Geziel Dos Santos de Sousa, Alexandre José Mont'Alverne Silva, Lilian Alves Amorim Beltrão
OBJECTIVE: to describe the real-time active surveillance strategy and the profile of health care provided during the 20th FIFA World Cup Brazil 2014 (FWCB), in the host city of Fortaleza, Ceará, Brazil. METHODS: this was a descriptive study with data collected from medical records during the FWCB, between June 8 and July 13, 2014, in pre-selected health care units. RESULTS: there were 2,570 medical assistances related to the FWCB; 56% of the patients were male, 35% were between 20 and 29 years old; 68% were clinical care, and 64% of the individuals were fans/spectators; 94% of the patients were discharged, 3% were referred, 3% were hospitalized and 0...
July 2016: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/27811329/effects-of-the-fifa-11-training-program-on-injury-prevention-and-performance-in-football-players-a-systematic-review-and-meta-analysis
#16
Mansueto Gomes Neto, Cristiano Sena Conceição, Alécio Jorge Alves de Lima Brasileiro, Camila Santana de Sousa, Vitor Oliveira Carvalho, Fabio Luciano Arcanjo de Jesus
OBJECTIVE: To investigate the effects of FIFA 11 training on injury prevention and performance in football players. DESIGN AND METHODS: Systematic review and meta-analysis. We conducted a systematic search using four databases (CINAHL, Cochrane Library, EMBASE, and PubMed) to find controlled trials evaluating the effects of FIFA 11 on injury prevention and performance among football players. Weighted mean differences, standard mean differences, risk ratios, and 95% confidence intervals were calculated, and heterogeneity was assessed using the I(2) test...
November 2, 2016: Clinical Rehabilitation
https://www.readbyqxmd.com/read/27769276/quality-of-life-of-residents-living-in-a-city-hosting-mega-sport-events-a-longitudinal-study
#17
Rebecca Pfitzner, Joerg Koenigstorfer
BACKGROUND: It remains unknown whether and when the hosting of mega-sport events increases quality of life of host city residents. The aim of this study is to assess the changes in quality of life of host city residents over the course of hosting a mega-sport event until three months after the event, depending on residents' perception of the atmosphere during the event. METHODS: The study was conducted in Rio de Janeiro, one of the host cities of the 2014 FIFA World Cup in soccer...
October 21, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27714907/the-use-and-modification-of-injury-prevention-exercises-by-professional-youth-soccer-teams
#18
J O'Brien, W Young, C F Finch
The efficacy of injury prevention exercise programs (IPEPs) for amateur youth soccer has been established, but little is known about their adaptability to other soccer populations. This study aimed to assess the use of individual injury prevention exercises by professional youth soccer teams, against the industry-standard, FIFA 11+ program. Four teams' chosen IPEPs were observed across one season and documented on a standardized form. The use of each FIFA 11+ exercise was coded as "performed", "performed modified" or "not performed"...
October 7, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27690842/distinction-of-clenbuterol-intake-from-drug-or-contaminated-food-of-animal-origin-in-a-controlled-administration-trial-the-potential-of-enantiomeric-separation-for-doping-control-analysis
#19
Maria Kristina Parr, Marco H Blokland, Franz Liebetrau, Alexander H Schmidt, Thijs Meijer, Mijo Stanic, Dorota Kwiatkowska, Emilia Waraksa, Saskia S Sterk
The differentiation of clenbuterol abuse and unintentional ingestion from contaminated meat is crucial with respect to the valuation of an adverse analytical finding in human sports doping control. The proportion of the two enantiomers of clenbuterol may serve as potential discriminating parameter. For the determination of the individual enantiomers, specific methods were developed and validated for the different matrices under investigation based on chiral chromatography coupled to tandem mass spectrometry...
April 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/27686243/analysis-of-the-predictive-qualities-of-betting-odds-and-fifa-world-ranking-evidence-from-the-2006-2010-and-2014-football-world-cups
#20
Fabian Wunderlich, Daniel Memmert
The present study aims to investigate the ability of a new framework enabling to derive more detailed model-based predictions from ranking systems. These were compared to predictions from the bet market including data from the World Cups 2006, 2010, and 2014. The results revealed that the FIFA World Ranking has essentially improved its predictive qualities compared to the bet market since the mode of calculation was changed in 2006. While both predictors were useful to obtain accurate predictions in general, the world ranking was able to outperform the bet market significantly for the World Cup 2014 and when the data from the World Cups 2010 and 2014 were pooled...
December 2016: Journal of Sports Sciences
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