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https://www.readbyqxmd.com/read/27931525/cardiac-remodeling-in-american-style-football-players-field-position-matters
#1
EDITORIAL
William A Zoghbi
No abstract text is available yet for this article.
December 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27931524/blood-pressure-and-lv-remodeling-among-american-style-football-players
#2
Jeffrey Lin, Francis Wang, Rory B Weiner, James R DeLuca, Meagan M Wasfy, Brant Berkstresser, Gregory D Lewis, Adolph M Hutter, Michael H Picard, Aaron L Baggish
OBJECTIVES: This study sought to determine the relationships among American-style football (ASF) participation, acquired left ventricular (LV) hypertrophy, and LV systolic function as assessed using contemporary echocardiographic parameters. BACKGROUND: Participation in ASF has been associated with development of hypertension and LV hypertrophy. To what degree these processes impact LV function is unknown. METHODS: This was a prospective, longitudinal cohort study evaluating National Collegiate Athletic Association Division I football athletes stratified by field position (linemen: n = 30; vs...
December 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27930454/fat-free-mass-index-in-ncaa-division-i-and-ii-collegiate-american-football-players
#3
Eric T Trexler, Abbie E Smith-Ryan, Malia N M Blue, Richard M Schumacher, Jerry L Mayhew, J Bryan Mann, Pat A Ivey, Katie R Hirsch, Meredith G Mock
Fat-free mass index (FFMI) is a height-adjusted assessment of fat-free mass, with previous research suggesting a natural upper limit of 25 kg[BULLET OPERATOR]m in resistance-trained males. The current study evaluated upper limits for FFMI in collegiate American football players (n=235), and evaluated differences between positions, divisions, and age groups. The sample consisted of two NCAA Division I teams (n=78, n=69), and one Division II team (n=88). Body composition was assessed via dual-energy x-ray absorptiometry and used to calculate FFMI; linear regression was used to normalize values to a height of 180 cm...
November 19, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27930446/prediction-of-overuse-injuries-in-professional-u18-u21-footballers-using-metrics-of-training-distance-and-intensity
#4
Christopher S Bacon, Alexis R Mauger
The most common injury in professional football is an overuse injury to the lower limb. A significant external risk factor of this injury is the mismanagement of training and match loads. The aim of the current study was to examine the predictability of overuse injuries in professional youth soccer players using volume and intensity variables derived from Global Positioning Systems (GPS). A total of 41 players (Age - 17.8 yrs±1.1 yrs) training and match loads were assessed. These external loads were measured over two competitive seasons for every training session and match for each individual...
November 19, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27928213/proposal-for-a-specific-aerobic-test-for-football-players-the-footeval
#5
Christophe Manouvrier, Johan Cassirame, Saïd Ahmaidi
The aim of this study was to evaluate the reproducibility and validity of the "Footeval" test, which evaluates football players' aerobic level in conditions close to those of football practice (intermittent, including technical skills). Twenty-four highly trained subjects from an elite football academy (17.8 ± 1.4 years, 5 training sessions per week) performed two Footeval sessions in a period of 7 days. Physiological variables measured during these sessions (VO2max 58.1 ± 5.6 and 58.7 ± 6.2 ml·min(-1)·kg(-1); RER 1...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27925768/unsupervised-classification-during-time-series-model-building
#6
Kathleen M Gates, Stephanie T Lane, E Varangis, K Giovanello, K Guiskewicz
Researchers who collect multivariate time-series data across individuals must decide whether to model the dynamic processes at the individual level or at the group level. A recent innovation, group iterative multiple model estimation (GIMME), offers one solution to this dichotomy by identifying group-level time-series models in a data-driven manner while also reliably recovering individual-level patterns of dynamic effects. GIMME is unique in that it does not assume homogeneity in processes across individuals in terms of the patterns or weights of temporal effects...
December 7, 2016: Multivariate Behavioral Research
https://www.readbyqxmd.com/read/27919560/posterior-ankle-impingement-syndrome-in-football-players-case-series-of-26-elite-athletes
#7
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/27918676/effects-of-training-load-and-leg-dominance-on-achilles-and-patellar-tendon-structure
#8
Alireza Esmaeili, Andrew M Stewart, William G Hopkins, George P Elias, Robert J Aughey
PURPOSE: Detrimental changes in tendon structure increase the risk of tendinopathies. The aim of this study was to investigate the influence of individual internal and external training loads and leg dominance on changes in the Achilles and patellar tendon structure. METHODS: The internal structure of the Achilles and patellar tendons of both limbs of 26 elite Australian footballers was assessed using ultrasound tissue characterization at the beginning and the end of an 18 week pre-season...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27918652/does-short-duration-heat-exposure-at-a-matched-cardiovascular-intensity-improve-intermittent-running-performance-in-a-cool-environment
#9
Calvin P Philp, Martin Buchheit, Cecilia M Kitic, Christopher T Minson, James W Fell
PURPOSE: To investigate whether a five-day cycling training block in the heat (35°C) in Australian rules footballers was superior to exercising at the same relative intensity in cool conditions (15°C) for improving intermittent running performance in a cool environment (<18°C). METHODS: Using a parallel-group design, 12 semi-professional football players performed five days of cycling exercise [70% heart rate reserve (HRR) for 45 min (5 x 50 min sessions in total)] in a hot (HEAT, 35±1°C, 56±9% RH) or cool environment (COOL, 15±3°C, 81±10% RH)...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27904800/cervical-contribution-to-functional-shoulder-impingement-two-case-reports
#10
Steven Pheasant
BACKGROUND: Subacromial impingement is a common condition among overhead athletes. The cause of subacromial impingement can be multifactorial and often involves impaired rotator cuff function. CASE DESCRIPTION: The following cases outline the presentation, examination and intervention of two overhead athletes, a high school football quarterback and a collegiate swimmer, each presenting with signs and symptoms of subacromial impingement. The unique feature in each case was the manifestation of the cervical spine as the apparent source of rotator cuff weakness, which contributed to functional subacromial impingement although other overt signs of cervical or associated nerve root involvement were absent...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27903162/a-partial-tear-of-the-infraspinatus-muscle
#11
Myles Murphy, Jonathon Charlesworth
A 29-year-old man experienced right shoulder pain and weakness following a forced abduction and external rotation motion performed during an Australian football game. The following morning, the sports medicine physician referred the player for magnetic resonance imaging to exclude infraspinatus rupture, given the external rotation strength deficit. Magnetic resonance imaging revealed a low-grade partial tear of the medial infraspinatus muscle. J Orthop Sports Phys Ther 2016;46(12):1087. doi:10.2519/jospt.2016...
December 2016: Journal of Orthopaedic and Sports Physical Therapy
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/27901311/video-gaming-as-practical-accomplishment-ethnomethodology-conversation-analysis-and-play
#13
Stuart Reeves, Christian Greiffenhagen, Eric Laurier
Accounts of video game play developed from an ethnomethodological and conversation analytic (EMCA) perspective remain relatively scarce. This study collects together an emerging, if scattered, body of research which focuses on the material, practical "work" of video game players. The study offers an example-driven explication of an EMCA perspective on video game play phenomena. The materials are arranged as a "tactical zoom." We start very much "outside" the game, beginning with a wide view of how massive-multiplayer online games are played within dedicated gaming spaces; here, we find multiple players, machines, and many different sorts of activities going on (besides playing the game)...
November 30, 2016: Topics in Cognitive Science
https://www.readbyqxmd.com/read/27900291/elastin-a-possible-genetic-biomarker-for-more-severe-ligament-injuries-in-elite-soccer-a-pilot-study
#14
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/27900187/mobility-proprioception-strength-and-fms-as-predictors-of-injury-in-professional-footballers
#15
Jonathan Yeung, Andrew Cleves, Hywell Griffiths, Len Nokes
BACKGROUND: The premise of this study was to investigate if anthropometric variables such as mobility, proprioception, strength and modified Functional Movement Screen (mFMS) could be used as primary indicators of injury risk in an English Championship division football team. This study focused on moderate injuries occurring in the lower extremities, during the 2014/2015 competitive season. METHODS: To differentiate between minor, moderate and severe injuries, this study classified moderate injuries as an injury with an average injury severity of 2-28 days...
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
#16
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/27900181/modified-balance-error-scoring-system-m-bess-test-scores-in-athletes-wearing-protective-equipment-and-cleats
#17
Aftab Mohammad Azad, Saad Al Juma, Junaid Ahmad Bhatti, J Scott Delaney
BACKGROUND: Balance testing is an important part of the initial concussion assessment. There is no research on the differences in Modified Balance Error Scoring System (M-BESS) scores when tested in real world as compared to control conditions. OBJECTIVE: To assess the difference in M-BESS scores in athletes wearing their protective equipment and cleats on different surfaces as compared to control conditions. METHODS: This cross-sectional study examined university North American football and soccer athletes...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27900178/self-reported-worst-injuries-in-women-s-australian-football-identify-lower-limb-injuries-as-a-prevention-priority
#18
Lauren V Fortington, Alex Donaldson, Caroline F Finch
BACKGROUND: Increasing participation by women in Australian football (AF) has made understanding their specific injury prevention needs a priority. In other sports, men and women have different injury profiles. This study aims to provide the first overview of self-reported injuries in women's AF. METHODS: Nationwide survey of women aged 17+ years who played in an AF competition was conducted following the 2014 playing season. The players' self-reported worst injury from the 2014 season is presented according to injury type, body part injured, treatment sought and games/training missed...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27900171/priorities-for-injury-prevention-in-women-s-australian-football-a-compilation-of-national-data-from-different-sources
#19
Lauren V Fortington, Caroline F Finch
BACKGROUND/AIM: Participation in Australian football (AF) has traditionally been male dominated and current understanding of injury and priorities for prevention are based solely on reports of injuries in male players. There is evidence in other sports that indicates that injury types differ between males and females. With increasing participation in AF by females, it is important to consider their specific injury and prevention needs. This study aimed to provide a first injury profile from existing sources for female AF...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27900166/concussed-athletes-are-more-prone-to-injury-both-before-and-after-their-index-concussion-a-data-base-analysis-of-699-concussed-contact-sports-athletes
#20
Erik Burman, Jack Lysholm, Pashtun Shahim, Christer Malm, Yelverton Tegner
BACKGROUND: Ice hockey and football players suffering concussions might have an increased risk for injuries afterwards. We aimed to investigate if concussions predisposed athletes for subsequent sport injuries. METHODS: Patient data were obtained from a data base established at the University Hospital in Umea, Sweden. Athletes who had suffered a concussion were included if they had been aged between 15 and 35 years of age, and played ice hockey, football (soccer), floorball and handball...
2016: BMJ Open Sport & Exercise Medicine
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