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https://www.readbyqxmd.com/read/29161094/the-effect-of-resistance-training-in-a-hypoxic-chamber-on-physical-performance-in-elite-rugby-athletes
#1
Brad Mayo, Cory Miles, Stacy Sims, Matthew Driller
Mayo, Brad, Cory Miles, Stacy Sims, and Matthew Driller. The effect of resistance training in a hypoxic chamber on physical performance in elite rugby athletes. High Alt Med Biol 00:000-000, 2017.-Limited research suggests that muscle adaptations may be enhanced through resistance training in a hypoxic environment. Seventeen professional rugby union athletes (age [mean ± SD], 24 ± 3 years; body mass, 98.7 ± 12.8 kg; and height, 188.9 ± 7.9 cm), performed 12 resistance training sessions over a 3-week period...
November 21, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29143592/col5a1-gene-variants-previously-associated-with-reduced-soft-tissue-injury-risk-are-associated-with-elite-athlete-status-in-rugby
#2
Shane M Heffernan, Liam P Kilduff, Robert M Erskine, Stephen H Day, Georgina K Stebbings, Christian J Cook, Stuart M Raleigh, Mark A Bennett, Guan Wang, Malcolm Collins, Yannis P Pitsiladis, Alun G Williams
BACKGROUND: Two common single nucleotide polymorphisms within the COL5A1 gene (SNPs; rs12722 C/T and rs3196378 C/A) have previously been associated with tendon and ligament pathologies. Given the high incidence of tendon and ligament injuries in elite rugby athletes, we hypothesised that both SNPs would be associated with career success. RESULTS: In 1105 participants (RugbyGene project), comprising 460 elite rugby union (RU), 88 elite rugby league athletes and 565 non-athlete controls, DNA was collected and genotyped for the COL5A1 rs12722 and rs3196378 variants using real-time PCR...
November 14, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29140145/monitoring-rugby-players-for-fitness-and-fatigue-what-do-coaches-want
#3
Lindsay T Starling, Michael I Lambert
PURPOSE: The advantages of monitoring players in a team are well documented. However, barriers associated with lack of resources and time prevents teams from implementing systematic monitoring programs. This study aims to identify 1) the methods rugby teams use to monitor the training load and associated response to the training load, and 2) prerequisites of a monitoring protocol that are scientifically suitable and practically applicable for monitoring fitness and fatigue of rugby players...
November 15, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29136039/exposure-time-running-and-skill-related-performance-in-international-u20-rugby-union-players-during-an-intensified-tournament
#4
Christopher J Carling, Mathieu Lacome, Eamon Flanagan, Pearse O'Doherty, Julien Piscione
PURPOSE: This study investigated exposure time, running and skill-related performance in two international u20 rugby union teams during an intensified tournament: the 2015 Junior World Rugby Championship. METHOD: Both teams played 5 matches in 19 days. Analyses were conducted using global positioning system (GPS) tracking (Viper 2™, Statsports Technologies Ltd) and event coding (Opta Pro®). RESULTS: Of the 62 players monitored, 36 (57.1%) participated in 4 matches and 23 (36...
2017: PloS One
https://www.readbyqxmd.com/read/29101150/players-and-coaches-knowledge-and-awareness-of-the-boksmart-safe-six-injury-prevention-programme-an-ecological-cross-sectional-questionnaire-study
#5
Nicola Sewry, Evert Verhagen, Mike Lambert, Willem van Mechelen, James Brown
OBJECTIVES: Rugby has a high injury incidence and therefore BokSmart introduced the Safe Six injury prevention programme in 2014 in an attempt to decrease this incidence. In 2015, BokSmart used a 'targeted marketing approach' to increase the awareness and knowledge of the Safe Six. Therefore, the aim of this study was to determine the change in the knowledge of coaches and players of the Safe Six programme, compared with the launch year, following a 'targeted marketing approach'. DESIGN: Ecological cross-sectional questionnaire study SETTING: The 2014-2016 South African rugby union youth week tournaments...
November 3, 2017: BMJ Open
https://www.readbyqxmd.com/read/29097230/non-sanctioning-of-illegal-tackles-in-south-african-youth-community-rugby
#6
J C Brown, S J Boucher, M Lambert, W Viljoen, C Readhead, S Hendricks, W J Kraak
OBJECTIVES: The tackle event in rugby union ('rugby') contributes to the majority of players' injuries. Referees can reduce this risk by sanctioning dangerous tackles. A study in elite adult rugby suggests that referees only sanction a minority of illegal tackles. The aim of this study was to assess if this finding was similar in youth community rugby. DESIGN: Observational study. METHODS: Using EncodePro, 99 South African Rugby Union U18 Youth Week tournament matches were coded between 2011 and 2015...
October 23, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29081983/attitudes-towards-protective-headgear-in-uk-rugby-union-players
#7
Andrew Barnes, James L Rumbold, Peter Olusoga
BACKGROUND/AIM: Concussions in rugby union pose a major threat to player welfare. Research has found protective headgear offers no significant protection against concussions but suggests a large proportion of players perceive headgear to be effective in preventing concussions. This study aimed to explore UK rugby union players' attitudes towards wearing protective headgear. METHODS: 545 rugby union players (85% male) from a range of playing standards completed an online survey...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29064724/the-effects-of-tackle-height-on-inertial-loading-of-the-head-and-neck-in-rugby-union-a-multibody-model-analysis
#8
Gregory J Tierney, Ciaran K Simms
OBJECTIVE: There is evidence of chronic injury to the head-and-neck region of Rugby Union players. The aim of this study was to use multibody simulations to examine the effects of tackle height on both Tackler and Ball Carrier head kinematics and neck dynamics. RESEARCH DESIGN: Quantitative Exploratory Study Methods and procedures: 45 front-on shoulder tackles with no direct contact to the head/neck were simulated with the MADYMO pedestrian model and used to assess differences between upper body tackles and lower body tackles...
2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29055883/efficacy-of-a-movement-control-injury-prevention-programme-in-adult-men-s-community-rugby-union-a-cluster-randomised-controlled-trial
#9
Matthew J Attwood, Simon P Roberts, Grant Trewartha, Mike E England, Keith A Stokes
BACKGROUND: Exercise programmes aimed at reducing injury have been shown to be efficacious for some non-collision sports, but evidence in adult men's collision sports such as rugby union is lacking. OBJECTIVE: To evaluate the efficacy of a movement control injury prevention exercise programme for reducing match injuries in adult men's community rugby union players. METHODS: 856 clubs were invited to participate in this prospective cluster randomised (single-blind) controlled trial where clubs were the unit of randomisation...
October 21, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29049096/the-effect-of-tackler-technique-on-head-injury-assessment-risk-in-elite-rugby-union
#10
Gregory J Tierney, Karl Denvir, Garreth Farrell, Ciaran K Simms
PURPOSE: To use match video evidence of tackles in elite level rugby union in order to identify tackler proficiency characteristics, for both Lower Body and Upper Body Tackles, that result in Head Injury Assessments (HIA) for the tackler. METHODS: A review of international rugby union matches (2013-2016) and Pro 12/ERC Champions Cup matches (2014-2016) from a professional rugby union club was conducted. HIA (n=53) and non-HIA tackles (n=233) were categorised as either front-on or side-on Upper Body or Lower Body Tackles and scored for tackling proficiency characteristics...
October 18, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29035601/skinfold-prediction-equations-fail-to-provide-an-accurate-estimate-of-body-composition-in-elite-rugby-union-athletes-of-caucasian-and-polynesian-ethnicity
#11
Adam Zemski, Elizabeth Broad, Gary Slater
Body composition in elite rugby union athletes is routinely assessed using surface anthropometry, which can be utilised to provide estimates of absolute body composition using regression equations. This study aims to assess the ability of available skinfold equations to estimate body composition in elite rugby union athletes, who have unique physique traits and divergent ethnicity. The development of sport-specific and ethnicity-sensitive equations was also pursued. Forty-three male international Australian rugby union athletes of Caucasian and Polynesian descent underwent surface anthropometry and dual-energy X-ray absorptiometry (DEXA) assessment...
October 16, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29021244/tackling-concussion-in-professional-rugby-union-a-case-control-study-of-tackle-based-risk-factors-and-recommendations-for-primary-prevention
#12
Matthew J Cross, Ross Tucker, Martin Raftery, Ben Hester, Sean Williams, Keith A Stokes, Craig Ranson, Prav Mathema, Simon Kemp
BACKGROUND/AIM: Concussion, the most common injury in professional rugby union, occurs most commonly during the tackle. Thus, we investigated the association between tackle characteristics and concussion. METHODS: 182 video clips of tackles leading to clinically diagnosed concussion and 4619 tackles that did not were coded across three professional rugby union competitions. A variable selection process was undertaken to identify the most important variables for interpretation...
October 11, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28965343/kinetic-sprint-asymmetries-on-a-non-motorised-treadmill-in-rugby-union-athletes
#13
Scott R Brown, Matt R Cross, Olivier Girard, Franck Brocherie, Pierre Samozino, Jean-Benoît Morin
The purpose of this study was to present a potential link between sprint kinetic (vertical [F V] and horizontal force [F H]) asymmetries and athletic performance during acceleration and maximal velocity (v max) sprinting. Thirty un-injured male rugby athletes performed 8-s sprints on a non-motorised treadmill. Kinetic data were divided into 'strong' and 'weak' legs based on individually averaged peak values observed during sprinting and were analysed to evaluate asymmetry. Large differences were found between the strong and weak legs in F H during acceleration (4...
October 1, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28959048/health-amongst-former-rugby-union-players-a-cross-sectional-study-of-morbidity-and-health-related-quality-of-life
#14
Madeleine A M Davies, Andrew D Judge, Antonella Delmestri, Simon P T Kemp, Keith A Stokes, Nigel K Arden, Julia L Newton
In the general population, physical activity is associated with improved health outcomes. However, long-term sports participation may be associated with adverse outcomes, particularly at the elite level. The aims of this study were to assess morbidity and health-related quality of life (HrQoL) amongst former rugby players, compared to an age-standardised general population sample. A cross-sectional study of former elite, male, rugby players (n = 259) was undertaken, and standardised morbidity ratios (SMR) calculated, assessing morbidity prevalence relative to English Longitudinal Study of Aging participants (ELSA, n = 5186)...
September 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28951725/position-affects-performance-in-multiple-object-tracking-in-rugby-union-players
#15
Andrés Martín, Ana M Sfer, Marcela A D'Urso Villar, José F Barraza
We report an experiment that examines the performance of rugby union players and a control group composed of graduate student with no sport experience, in a multiple-object tracking task. It compares the ability of 86 high level rugby union players grouped as Backs and Forwards and the control group, to track a subset of randomly moving targets amongst the same number of distractors. Several difficulties were included in the experimental design in order to evaluate possible interactions between the relevant variables...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28902112/the-efficacy-of-repeated-cold-water-immersion-on-recovery-following-a-simulated-rugby-union-protocol
#16
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
#17
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...
October 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28872372/the-specificity-of-rugby-union-training-sessions-in-preparation-for-match-demands
#18
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
#19
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 13, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28843846/sport-concussion-assessment-tool-third-edition-normative-reference-values-for-professional-rugby-union-players
#20
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
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