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https://www.readbyqxmd.com/read/27919560/posterior-ankle-impingement-syndrome-in-football-players-case-series-of-26-elite-athletes
#1
Savaş Kudaş, Gürhan Dönmez, Çetin Işık, Mesut Çelebi, Nurdan Çay, Murat Bozkurt
OBJECTIVE: To describe a clinical treatment algorithm for posterior ankle impingement (PAI) syndrome in professional football players. MATERIAL AND METHODS: A case series of 26 elite professional football players diagnosed and treated for posterior ankle impingement syndrome were included for the study. All of the athletes received conservative treatment with physical therapy modalities initially. If the first line medical treatment and rehabilitation was ineffective to alleviate the symptoms, ultrasound-guided corticosteroid injection was proposed and thereafter the patients underwent posterior ankle arthroscopy if the complaints are still unresolved...
December 3, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27918679/movement-patterns-and-metabolic-responses-during-an-international-rugby-sevens-tournament
#2
Anthony Couderc, Claire Thomas, Mathieu Lacome, Julien Piscione, Julien Robineau, Rémi Delfour-Peyrethon, Rachel Borne, Christine Hanon
PURPOSE: This study investigated the running-demands and associated metabolic perturbations during an official rugby sevens tournament. METHODS: Twelve elite players participated in seven matches wearing Global Positioning System units. Maximal sprinting speed (MSS) and maximal aerobic speed (MAS) were measured. High-intensity threshold was individualized relative to MAS (>100% of MAS) and very high-intensity distance were reported relative to both MAS and MSS...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27918668/the-influence-of-changes-in-acute-training-load-on-daily-sensitivity-of-morning-measured-fatigue-variables-in-elite-soccer-players
#3
Robin T Thorpe, Anthony J Strudwick, Martin Buchheit, Greg Atkinson, Barry Drust, Warren Gregson
PURPOSE: To determine the sensitivity of a range of potential fatigue measures to daily training load accumulated over the previous two, three and four days during a short in-season competitive period in elite senior soccer players (n=10). METHODS: Total high-speed running distance, perceived ratings of wellness (fatigue, muscle soreness, sleep quality), counter-movement jump height (CMJ), submaximal heart rate (HRex), post-exercise heart rate recovery (HRR) and heart rate variability (HRV: Ln rMSSD) were analysed during an in-season competitive period (17 days)...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27918655/activity-profiles-and-positional-differences-of-handball-players-during-the-world-championships-in-qatar-2015
#4
Marco Cardinale, Rodney Whiteley, Ahmed Abdelrahman Hosny, Nebojsa Popovic
PURPOSE: Handball is an Olympic sport played indoor by 6 court players and one goalkeeper with rolling substitutions. Limited data exist on elite players competing in a World Championship and virtually no information exits on the evolution of time-motion performance over the course of a long tournament. Therefore, the aim of this study was to analyze time motion characteristics of elite male handball players of the last World Championships played in Qatar in 2015. METHODS: 384 Players from 24 national teams were analyzed during 88 matches using a tracking camera system and a bespoke software (Prozone Handball V...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27909408/reliability-validity-and-usefulness-of-30-15-intermittent-fitness-test-in-female-soccer-players
#5
Nedim Čović, Eldin Jelešković, Haris Alić, Izet Rađo, Erduan Kafedžić, Goran Sporiš, Daniel T McMaster, Zoran Milanović
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 continuous aerobic running test (CT) under laboratory conditions to assess the criterion validity of the 30-15IFT. End running velocity (VCT and VIFT), peak heart rate (HRpeak) and maximal oxygen consumption (VO2max) were collected and/or estimated for both tests...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27906965/do-elite-and-amateur-soccer-players-outperform-non-athletes-on-neurocognitive-functioning-a-study-among-8-12-year-old-children
#6
Lot Verburgh, Erik J A Scherder, Paul A M Van Lange, Jaap Oosterlaan
AIM: Research suggested a positive association between physical fitness and neurocognitive functioning in children. Aim of the present study is to investigate possible dose-response relationships between diverse daily physical activities and a broad range of neurocognitive functions in preadolescent children. Furthermore, the relationship between several sedentary behaviours, including TV-watching, gaming and computer time, and neurocognitive functioning will be investigated in this group of children...
2016: PloS One
https://www.readbyqxmd.com/read/27904629/effect-of-various-kinds-of-beverages-on-stress-oxidative-f2-isoprostane-serum-lipid-and-blood-glucose-of-elite-taekwondo-players
#7
Zahra Maghsoudi, Ashfin Shiranian, Gholamreza Askai, Reza Ghaisvand
BACKGROUND: Athletes' recovery is important in improving their performance. Nutritional strategies can be effective in enhancing recovery rate. Choosing the best food items in appropriate intervals can play effective roles in resynthesis of fuels and recovery of muscle injury. Beverage micro and macronutrient content are helpful in fuel restoration. In this study, we assess the effects of various kinds of beverages on oxidative stress, muscle injury, and metabolic risk factors in taekwondo players...
September 2016: Iranian Journal of Nursing and Midwifery Research
https://www.readbyqxmd.com/read/27900291/elastin-a-possible-genetic-biomarker-for-more-severe-ligament-injuries-in-elite-soccer-a-pilot-study
#8
Rosa Artells, Ricard Pruna, Alexandre Dellal, Nicola Maffulli
BACKGROUND: The study of new genetic biomarkers in genes related to connective tissue repair and regeneration may help to identify individuals with greater predisposition to injury, who may benefit from targeted preventive measures, and those who require longer recovery time following a muscle, ligament or tendon injury. The present study investigated whether single nucleotide polymorphisms of the Elastin gene could be related to MCL injury. METHODS: 60 top class football players were studied to identify single nucleotide polymorphisms for the Elastin (ELN) gene using Allelic Discrimination analysis...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27900290/female-athletes-and-menstrual-disorders-a-pilot-study
#9
Laura Stefani, Giorgio Galanti, Silvia Lorini, Giada Beni, Metella Dei, Nicola Maffulli
BACKGROUND: There is a greater incidence of menstrual disorders in female athletes than in their sedentary counterparts. The menstrual disorder is reported in female athletes suffering from athletic triad syndrome, while few data in those free of this syndrome are available. The study aims to ascertain the presence of menstrual disorders and the eventual relationship with myocardial performance in female athletes practicing different sports. METHODS: A sample of 64 subjects aged 18...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27900192/vertical-stiffness-is-not-related-to-anterior-cruciate-ligament-elongation-in-professional-rugby-union-players
#10
Benjamin G Serpell, Jennie M Scarvell, Mark R Pickering, Nick B Ball, Diana Perriman, John Warmenhoven, Paul N Smith
BACKGROUND: Novel research surrounding anterior cruciate ligament (ACL) injury is necessary because ACL injury rates have remained unchanged for several decades. An area of ACL risk mitigation which has not been well researched relates to vertical stiffness. The relationship between increased vertical stiffness and increased ground reaction force suggests that vertical stiffness may be related to ACL injury risk. However, given that increased dynamic knee joint stability has been shown to be associated with vertical stiffness, it is possible that modification of vertical stiffness could help to protect against injury...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27900186/injury-incidence-in-a-premier-league-youth-soccer-academy-using-the-consensus-statement-a-prospective-cohort-study
#11
Andrew Renshaw, Peter C Goodwin
BACKGROUND: There is an established risk of injury to young athletes exposed to high training loads. Identifying and monitoring injury risk is essential to aid prevention. The aim of this study was to use the consensus statement to determine the incidence and pattern of injury in 1 English Premier League soccer academy during 1 season. METHODS: A prospective cohort study included 181 elite academy soccer players during the 2012-2013 season. Players were divided into 5 age groups between 9 and 18 years...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27900184/symptoms-and-risk-factors-of-depression-during-and-after-the-football-career-of-elite-female-players
#12
Birgit Prinz, Jiří Dvořák, Astrid Junge
BACKGROUND: The mental health of elite athletes has received increasing attention in recent years, but no study has evaluated the career-time prevalence of depression, and very few have analysed risk factors of mental health problems during or after the career. METHODS: 157 (response rate 64.1%) female players who played in the German First League answered an anonymous online survey on details of their football career, stressful and helpful conditions, depression and need of psychotherapeutic support during and after the football career...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27900164/prevalence-of-depression-and-anxiety-in-top-level-male-and-female-football-players
#13
Astrid Junge, Nina Feddermann-Demont
BACKGROUND: Scientific studies on the prevalence of mental health problems in elite athletes are rare, and most have had considerable methodological limitations, such as low response rate and heterogeneous samples. AIMS: To evaluate the prevalence of depression and anxiety in top-level football players in comparison to the general population, and to analyse potential risk factors. METHODS: Players of all first league (FL) and of four U-21 football teams in Switzerland were asked to answer a questionnaire on player's characteristics, the Centre of Epidemiologic Studies Depression Scale (CES-D) and the Generalized Anxiety Disorder (GAD-7) scale...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27899276/a-comparison-of-the-physical-and-anthropometric-qualities-explanatory-of-talent-in-the-elite-junior-australian-football-development-pathway
#14
Carl T Woods, Ashley Cripps, Luke Hopper, Christopher Joyce
OBJECTIVES: To compare the physical and anthropometric qualities explanatory of talent at two developmental levels in junior Australian football (AF). DESIGN: Cross-sectional observational. METHODS: From a total of 134 juniors, two developmental levels were categorised; U16 (n=50; 15.6±0.3 y), U18 (n=84; 17.4±0.5 y). Within these levels, two groups were a priori defined; talent identified (U16; n=25; 15.7±0.2 y; U18 n=42; 17.5±0.4 y), non-talent identified (U16; n=25; 15...
November 23, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/27895923/concurrent-validity-of-the-gyko-inertial-sensor-system-for-the-assessment-of-vertical-jump-height-in-female-sub-elite-youth-soccer-players
#15
Melanie Lesinski, Thomas Muehlbauer, Urs Granacher
BACKGROUND: The aim of the present study was to verify concurrent validity of the Gyko inertial sensor system for the assessment of vertical jump height. METHODS: Nineteen female sub-elite youth soccer players (mean age: 14.7 ± 0.6 years) performed three trials of countermovement (CMJ) and squat jumps (SJ), respectively. Maximal vertical jump height was simultaneously quantified with the Gyko system, a Kistler force-plate (i.e., gold standard), and another criterion device that is frequently used in the field, the Optojump system...
2016: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27879298/withdrawals-and-retirements-in-professional-tennis-players-an-analysis-of-2013-united-states-tennis-association-pro-circuit-tournaments
#16
Matthew J Hartwell, Sandra M Fong, Alexis C Colvin
BACKGROUND: Injuries and illnesses for professional tennis athletes disrupt training, competition, and progression in the sport and represent a major reason for athlete withdrawal or retirement from a tournament. Few descriptive epidemiological studies have focused on these trends in elite tennis athletes. PURPOSE: To examine the causes of professional tennis player withdrawal or retirement from United States Tennis Association (USTA) Pro Circuit tournaments during 2013...
November 22, 2016: Sports Health
https://www.readbyqxmd.com/read/27874302/sprint-performance-of-elite-wheelchair-basketball-players-applicability-of-a-laser-system-for-describing-the-velocity-curve
#17
Amelia Ferro, Jorge Villacieros, Javier Pérez-Tejero
The purpose of this study was to develop a methodology to accurately analyze sprint performance of elite wheelchair basketball (WB) players in their own training context using a laser system and to analyze the velocity curve performed by the players regarding their functional classification and their playing position. Twelve WB players, from the Spanish men's national team, took part in an oncourt 20-m-sprint test. BioLaserSport® was used to obtain time, mean velocities (Vm), maximum velocities (Vmax), and distances at 90%, 95%, and 98% of their Vmax...
October 2016: Adapted Physical Activity Quarterly: APAQ
https://www.readbyqxmd.com/read/27872123/effect-of-external-ankle-support-on-ankle-and-knee-biomechanics-during-the-cutting-maneuver-in-basketball-players
#18
Nardia-Rose Klem, Catherine Y Wild, Sian A Williams, Leo Ng
BACKGROUND: Despite the high prevalence of lower extremity injuries in female basketball players as well as a high proportion of athletes who wear ankle braces, there is a paucity of research pertaining to the effects of ankle bracing on ankle and knee biomechanics during basketball-specific tasks. PURPOSE: To compare the effects of a lace-up brace (ASO), a hinged brace (Active T2), and no ankle bracing (control) on ankle and knee joint kinematics and joint reaction forces in female basketball athletes during a cutting maneuver...
November 21, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27870695/validity-and-reliability-of-a-submaximal-intermittent-running-test-in-elite-australian-football-players
#19
Kristopher R Veugelers, Geraldine A Naughton, Craig S Duncan, Darren J Burgess, Stuart R Graham
Veugelers, KR, Naughton, GA, Duncan, CS, Burgess, DJ, and Graham, SR. Validity and reliability of a submaximal intermittent running test in elite Australian football players. J Strength Cond Res 30(12): 3347-3353, 2016-The aim of this article was to determine the validity and reliability of a submaximal intermittent running (SIR) test in elite Australian rules football (ARF) players. Heart rate (HR) responses of 38 elite ARF players to both the SIR and the yo-yo intermittent recovery 2 (YYIR2) tests were compared over 2 trials...
December 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27868475/collision-count-in-rugby-union-a-comparison-of-micro-technology-and-video-analysis-methods
#20
Cillian Reardon, Daniel P Tobin, Peter Tierney, Eamonn Delahunt
The aim of our study was to determine if there is a role for manipulation of g force thresholds acquired via micro-technology for accurately detecting collisions in rugby union. In total, 36 players were recruited from an elite Guinness Pro12 rugby union team. Player movement profiles and collisions were acquired via individual global positioning system (GPS) micro-technology units. Players were assigned to a sub-category of positions in order to determine positional collision demands. The coding of collisions by micro-technology at g force thresholds between 2 and 5...
November 21, 2016: Journal of Sports Sciences
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