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https://www.readbyqxmd.com/read/28902112/the-efficacy-of-repeated-cold-water-immersion-on-recovery-following-a-simulated-rugby-union-protocol
#1
Sean Barber, Pattison John, Freddy Brown, Jessica Hill
Training and athletic competition frequently results in exercise induced muscle damage (EIMD). The purpose of this study was to investigate the efficacy of repeated cold water immersion (CWI) on recovery following a simulated rugby union match. Sixteen male, club level rugby players were matched for body mass and randomly assigned to either a CWI group or control (CON) group. Following the simulated rugby match the CWI group underwent 2 x 5 min immersions at a temperature of 10°C separated by 2.5 min seated at room temperature, whilst the CON group remained seated for 15 min...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28895619/symptoms-of-common-mental-disorders-in-professional-rugby-an-international-observational-descriptive-study
#2
Vincent Gouttebarge, Phil Hopley, Gino Kerkhoffs, Evert Verhagen, Wayne Viljoen, Paul Wylleman, Mike I Lambert
The aim of the study was to determine the prevalence of symptoms of common mental disorders among professional rugby players across countries. A cross-sectional analysis of the baseline questionnaires from an ongoing prospective cohort study was conducted. Nine national players' associations and three rugby unions distributed questionnaires based on validated scales for assessing symptoms of common mental disorders. Among the whole study sample (N=990; overall response rate of 28%), prevalence (4-week) of symptoms of common mental disorders ranged from 15% for adverse alcohol use to 30% for anxiety/depression...
September 11, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28872372/the-specificity-of-rugby-union-training-sessions-in-preparation-for-match-demands
#3
Patrick G Campbell, Jonathan M Peake, Geoffrey M Minett
PURPOSE: Investigations into the specificity of rugby union training practices in preparation for competitive demands has predominantly focussed on physical and physiological demands. The evaluation of the contextual variance in perceptual strain or skill requirements between training and matches in rugby union is unclear, yet holistic understanding may assist to optimise training design. This study evaluated the specificity of physical, physiological, perceptual and skill demands of training sessions compared with competitive match-play in pre-professional, elite club rugby union...
September 5, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28870119/a-history-of-concussions-is-associated-with-symptoms-of-common-mental-disorders-in-former-male-professional-athletes-across-a-range-of-sports
#4
Vincent Gouttebarge, Haruhito Aoki, Michael Lambert, William Stewart, Gino Kerkhoffs
OBJECTIVE: Recent reports suggest that exposure to repetitive concussions in sports is associated with an increased risk of symptoms of distress, anxiety and depression, sleep disturbance or substance abuse/dependence (typically referred as symptoms of common mental disorders[CMD]) and of later development of neurodegenerative disease, in particular chronic traumatic encephalopathy (CTE). The primary aim of this study was to explore the relationship between sports career-related concussions and the subsequent occurrence of symptoms of CMD among former male professional athletes retired from football (soccer), ice hockey and rugby (union)...
September 5, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28843846/sport-concussion-assessment-tool-third-edition-normative-reference-values-for-professional-rugby-union-players
#5
G W Fuller, O Govind, R Tucker, M Raftery
OBJECTIVES: To establish normative reference data for the SCAT3 in professional Rugby Union players. DESIGN: A cross sectional study in professional Rugby Union players competing in national and international professional competitions between 2015 and 2016. METHODS: The SCAT3 was administered pre-season or prior to tournaments. Data was collected electronically using a custom tablet application. SCAT3 subcomponents distributions were described and normative ranges determined using percentile cut-offs for average, unusually low/high, and extremely low/high scores...
August 2, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28820858/technical-and-tactical-aspects-in-italian-youth-rugby-union-in-relation-to-different-academies-regional-tournaments-and-outcomes
#6
Alexandru Nicolae Ungureanu, Giancarlo Condello, Simonluca Pistore, Daniele Conte, Corrado Lupo
This study aimed to analyze the technical and tactical aspects of the Italian under-18 Academy Rugby Union in relation to different academies, regional tournaments, and game outcomes. A notational analysis (forty-four indicators) was performed on 16 games (2014-15 season) to evaluate strong differences (P ≤ 0.05; moderate-large effect sizes) according to variables. Among academies, strong differences were showed for defensive breakdown where the defending support is much (range=77-87%), equal (range=11-32%), and less (range=2-12%) numerous than the attacking support, total tackles (range=64-122) and passes (range=72-151), pass to possession ratio (range=6-10), possession lost due to an error (range=28-59%), and ball in play in own (range=8-25%) and opponent (range=7-31%) 22m area indicators...
August 15, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28797830/reduced-severity-of-lumbo-pelvic-hip-injuries-in-professional-rugby-union-players-following-tailored-preventative-programmes
#7
Kate L Evans, Jonathan Hughes, Morgan D Williams
OBJECTIVES: The aim of this study was to tailor lumbo-pelvic-hip (LPH) injury reduction programmes in professional rugby union players based on screening data and examine its effectiveness. DESIGN: Prospective case controlled study. METHODS: Twenty-eight professional rugby union players were screened pre- and immediately post- the YO-YO intermittent recovery level 1 test using six hip and groin strength tests (adductor squeeze at 0°, 60° and 90°, prone hip extension, abductor, adductor hand held dynamometry)...
July 12, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28771064/vitamin-d3-supplementation-does-not-improve-sprint-performance-in-professional-rugby-players-a-randomised-placebo-controlled-double-blind-intervention-study
#8
Kirsty A Fairbairn, Ingrid Jm Ceelen, C Murray Skeaff, Claire M Cameron, Tracy L Perry
Vitamin D insufficiency is common in athletes and may lower physical performance. Many cross-sectional studies associate vitamin D status with physical performance in athletes, however there have been few prospective randomised controlled trials with adequate statistical power to test this relationship, and none in the southern hemisphere. Thus, a prospective double blind, randomised placebo-controlled intervention trial was conducted, involving 57 professional rugby union players in New Zealand. Participants were randomised to receive 50,000 IU of cholecalciferol (equivalent to 3,570 IU/day) or placebo once every two weeks over 11-12 weeks...
August 3, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28765491/turbulent-tackle-a-novel-surgical-approach-to-a-rugby-related-jejunal-perforation
#9
Ross J O'Shea, Donal O'Sullivan, Thomas Aherne, Karl J Sweeney
Viscus perforation in the context of blunt-force abdominal trauma is a rarity. Within a sporting context, it is especially rare. However, the increasing physicality observed in rugby union, both in the amateur and professional setting, has resulted in a higher rate of serious injury. We report a novel laparoscopic surgical approach to the management of a traumatic jejunal perforation sustained on the playing field in a previously fit and healthy 28-year-old.
July 31, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28761719/effect-of-a-gluteal-activation-warm-up-on-explosive-exercise-performance
#10
Matt Parr, Phil Db Price, Daniel J Cleather
OBJECTIVES: To evaluate the effect of a gluteal activation warm-up on the performance of an explosive exercise (the high hang pull (HHP)). METHODS: Seventeen professional rugby union players performed one set of three HHPs (with 80% of their one repetition maximum load) following both a control and activation warm-up. Peak electrical activity of the gluteus maximus and medius was quantified using electromyography (EMG). In addition, the kinematics and kinetics of nine players was also recorded using force plate and motion capture technology...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/28761716/prevalence-of-laceration-injuries-in-professional-and-amateur-rugby-union-a-systematic-review-and-meta-analysis
#11
REVIEW
Bodil Yucki Oudshoorn, Heather Driscoll, Karen Kilner, Marcus Dunn, David James
BACKGROUND: Studded footwear can cause severe lacerations in rugby union; the prevalence of these injuries is currently unknown. OBJECTIVE: To summarise the skin and laceration injury prevalence in published epidemiological studies and to investigate any differences in skin injury risk between amateur and professional players. DESIGN: Systematic literature review and meta-analysis of epidemiological studies. DATA SOURCES: PubMed, Web of Science, Scopus and Ovid...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/28759901/subsequent-injuries-and-early-recurrent-diagnoses-in-elite-rugby-union-players
#12
Sean Williams, Grant Trewartha, Simon Kemp, Matthew J Cross, John H M Brooks, Colin W Fuller, Aileen E Taylor, Keith A Stokes
An eight-season (2005/06-2012/13) prospective cohort design was used to record time-loss injuries in 15 English Premiership teams. Data pertaining to a total of 1 556 players and 9 597 injuries (8 180 subsequent) were included in the analysis. Injuries subsequent to an index injury were classified as (1) New: different site; (2) Local: same site (and different type); or (3) Recurrent: same site and type. The severity of subsequent injuries (days missed) was compared with their related index injury. The proportions of early (<2 months), late (2-12 months) and delayed (>12 months) subsequent injuries were compared across injury classifications and diagnosis groupings...
September 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28723812/effects-of-12-weeks-resistance-training-on-sprint-and-jump-performance-in-competitive-adolescent-rugby-union-players
#13
Simon K Harries, David R Lubans, Anthony Buxton, Thomas H J MacDougall, Robin Callister
Sprint performance is an important characteristic for success in many sports, including rugby union. Resistance training is used to increase muscular fitness (i.e. strength, endurance and power) and may also be effective for improving sprint and jump performances. The aims of this study were to examine the effects of resistance training using two different periodized programs (linear and daily undulating) on sprint and jump performance and explore relationships between performance measures. Sixteen male (16...
July 17, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28716690/does-player-time-in-game-affect-tackle-technique-in-elite-level-rugby-union
#14
Gregory J Tierney, Karl Denvir, Garreth Farrell, Ciaran K Simms
OBJECTIVES: It has been hypothesised that fatigue may be a major factor in tackle-related injury risk in rugby union and hence more injuries occur in the later stages of a game. The aim of this study is to identify changes in ball carrier or tackler proficiency characteristics, using elite level match video data, as player time-in-game increases. DESIGN: Qualitative observational cohort study. METHODS: Three 2014/15 European Rugby Champions Cup games were selected for ball carrier and tackler proficiency analysis...
July 4, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28708701/self-reported-concussion-history-and-sensorimotor-tests-predict-head-neck-injuries
#15
Julie A Hides, Melinda M Franettovich Smith, M Dilani Mendis, Julia Treleaven, Andrew H Rotstein, Christopher T Sexton, Nancy Low Choy, Paul McCrory
PURPOSE: Sports related concussion (SRC) is a risk for players involved in high impact, collision sports. A history of SRC is a risk factor for future concussions, but the mechanisms underlying this are unknown. Despite evidence that most visible signs and symptoms associated with sports concussion resolve within 7-10 days, it has been proposed that subclinical loss of neuromuscular control and impaired motor functioning may persist and be associated with further injury. Alternatively, indicators of poor sensorimotor performance could be independent risk factors...
July 13, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28701366/evidence-in-support-of-the-call-to-ban-the-tackle-and-harmful-contact-in-school-rugby-a-response-to-world-rugby
#16
REVIEW
Allyson M Pollock, Adam John White, Graham Kirkwood
In a paper published in BJSM (June 2016), World Rugby employees Ross Tucker and Martin Raftery and a third coauthor Evert Verhagen took issue with the recent call to ban tackling in school rugby in the UK and Ireland. That call (to ban tackling) was supported by a systematic review published in BJSM Tucker et al claim that: (1) the mechanisms and risk factors for injury along with the incidence and severity of injury in youth rugby union have not been thoroughly identified or understood; (2) rugby players are at no greater risk of injury than other sports people, (3) this is particularly the case for children under 15 years and (4) removing the opportunity to learn the tackle from school pupils might increase rates of injuries...
August 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28687400/a-systems-approach-to-understanding-the-identification-and-treatment-of-sport-related-concussion-in-community-rugby-union
#17
Amanda Clacy, Natassia Goode, Rachael Sharman, Geoff P Lovell, Paul Salmon
AIM: The aim of the present study was to utilise a systems thinking approach to explore the perceived responsibilities for identifying and treating concussion held by different actors across the community rugby system (e.g., players, coaches, parents, medics, referees, and management), as well as their role-specific concussion management strategies. METHODS: A systems approach was taken to assess what different stakeholders within rugby systems perceive their roles to be regarding concussion identification and treatment...
July 4, 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28675124/combined-individual-scrummaging-kinetics-and-muscular-power-predict-competitive-team-scrum-success
#18
Andrew Green, Chloe Dafkin, Samantha Kerr, Warrick McKinon
Scrummaging is a major component of Rugby Union gameplay. Successful scrummaging is dependent on the coordination of the forward players and the strength of the eight individuals. The study aim was to determine whether individual scrummaging kinetics and other candidate factors associated with scrummaging performance discriminate team scrum performances. Sixteen club-level forwards (stature: 1.80 ± 0.1 m; mass: 99.0 ± 18.2 kg) were initially divided into two scrummaging packs. A total of 10 various scrum permutations were tested, where players were randomly swapped between the two packs...
September 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28665765/the-association-between-comt-rs4680-and-5-httlpr-genotypes-and-concussion-history-in-south-african-rugby-union-players
#19
Sarah Mc Fie, Shameemah Abrahams, Jon Patricios, Jason Suter, Michael Posthumus, Alison V September
The objective was to investigate the relationship between Catechol-O-methyltransferase (COMT) rs4680 and serotonin-transporter-linked polymorphic region (5-HTTLPR) genotypes with concussion history and personality traits. Rugby players ("all levels": n = 303), from high schools ("junior", n = 137), senior amateur, and professional teams ("senior", n = 166), completed a self-reported concussion history questionnaire, Cloninger's Tridimensional Personality Questionnaire, and donated a DNA sample. Participants were allocated into control (non-concussed, n = 140), case (all) (previous suspected or diagnosed concussions, n = 163), or case (diagnosed only) (previous diagnosed concussion, n = 140) groups...
June 30, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28663217/a-video-analysis-of-head-injuries-satisfying-the-criteria-for-a-head-injury-assessment-in-professional-rugby-union-a-prospective-cohort-study
#20
Ross Tucker, Martin Raftery, Gordon Ward Fuller, Ben Hester, Simon Kemp, Matthew J Cross
OBJECTIVES: Concussion is the most common match injury in professional Rugby Union, accounting for 25% of match injuries. The primary prevention of head injuries requires that the injury mechanism be known so that interventions can be targeted to specifically overall incidence by focusing on characteristics with the greatest propensity to cause a head injury. METHODS: 611 head injury assessment (HIA) events in professional Rugby Union over a 3-year period were analysed, with specific reference to match events, position, time and nature of head contact...
August 2017: British Journal of Sports Medicine
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