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https://www.readbyqxmd.com/read/28209571/-visionzero-is-it-achievable-for-rugby-related-catastrophic-injuries-in-south-africa
#1
EDITORIAL
James Brown, Wayne Viljoen, Clint Readhead, Gail Baerecke, Mike Lambert, Caroline F Finch
No abstract text is available yet for this article.
February 16, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28207546/effects-of-postexercise-ice-water-and-room-temperature-water-immersion-on-the-sensory-organization-of-balance-control-and-lower-limb-proprioception-in-amateur-rugby-players-a-randomized-controlled-trial
#2
Gary C C Chow, Timothy T T Yam, Joanne W Y Chung, Shirley S M Fong
BACKGROUND: This single-blinded, three-armed randomized controlled trial aimed to compare the effects of postexercise ice-water immersion (IWI), room-temperature water immersion (RWI), and no water immersion on the balance performance and knee joint proprioception of amateur rugby players. METHODS: Fifty-three eligible amateur rugby players (mean age ± standard deviation: 21.6 ± 2.9 years) were randomly assigned to the IWI group (5.3 °C), RWI group (25...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28195980/importance-reliability-and-usefulness-of-acceleration-measures-in-team-sports
#3
Jace A Delaney, Cloe J Cummins, Heidi R Thornton, Grant M Duthie
The ability to accelerate, decelerate and change direction efficiently is imperative to successful team-sports performance. Traditional intensity-based thresholds for acceleration and deceleration may be inappropriate for time-series data, and have been shown to exhibit poor reliability, suggesting other techniques may be preferable. This study assessed movement data from one professional rugby league team throughout two full seasons and one pre-season period. Using both 5 Hz and 10 Hz global positioning systems (GPS) units, a range of acceleration-based variables were evaluated for their inter-unit reliability, ability to discriminate between positions, and associations with perceived muscle soreness...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28195971/preseason-functional-movement-screen%C3%A2-predicts-risk-of-time-loss-injury-in-experienced-male-rugby-union-athletes
#4
Sean R Duke, Steve E Martin, Catherine A Gaul
The purpose of this study was to determine the relationship between Functional Movement Screen™ (FMS) score and the risk of time-loss injury in experienced male rugby union athletes. A secondary purpose was to determine the relationship between FMS-determined asymmetries and the risk of time-loss injury in these athletes.FMS scores were collected from male rugby union athletes (n=73) during preseason and half-way through one eight-month season. Time-loss injury data were collected throughout the full season...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28192830/thermoregulatory-responses-during-competitive-wheelchair-rugby-match-play
#5
Katy E Griggs, George Havenith, Michael J Price, Barry S Mason, Victoria L Goosey-Tolfrey
The purpose of this study was to determine whether a player's physical impairment or activity profile was related to the amount of thermal strain experienced during wheelchair rugby match play. 17 elite wheelchair rugby players played a competitive match, whilst activity profiles, measures of core and skin temperature, heart rate and perceptual responses were taken. Players were divided into 2 groups depending on their physical impairment: players with a cervical spinal cord injury, (n=10) or non-spinal related physical impairment (n=7)...
February 13, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28192828/mr-spectroscopy-findings-in-retired-professional-rugby-league-players
#6
Andrew J Gardner, Grant L Iverson, Magdalena Wojtowicz, Christopher R Levi, Frances Kay-Lambkin, Peter W Schofield, Ross Zafonte, Sandy R Shultz, Alexander P Lin, Peter Stanwell
The aim of this study was to examine brain neurometabolite concentrations in retired rugby league players who had a history of numerous self-reported concussions. Participants were 16 retired professional rugby league players (ages 30-45 years) with an extensive history of concussion and participation in contact sports, and 16 age- and education-matched controls who had no history of neurotrauma or participation in contact sports. All completed a clinical interview, psychological and cognitive testing, and magnetic resonance spectroscopy (MRS) investigation...
February 13, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28185808/a-sled-push-stimulus-potentiates-subsequent-20-m-sprint-performance
#7
Laurent B Seitz, Minas A Mina, G Gregory Haff
OBJECTIVES: The objective of this study was to examine the potentiating effects of performing a single sprint-style sled push on subsequent unresisted 20m sprint performance. DESIGN: Randomized crossover design. METHODS: Following a familiarization session, twenty rugby league players performed maximal unresisted 20m sprints before and 15s, 4, 8 and 12min after a single sled push stimulus loaded with either 75 or 125% body mass. The two sled push conditions were performed in a randomized order over a one-week period...
January 23, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28184307/low-back-pain-and-foki-rs2228570-polymorphism-of-vitamin-d-receptor-in-athletes
#8
Sabina Cauci, Francesca Migliozzi, Carlo Simone Trombetta, Ilaria Venuto, Paola Saccheri, Luciana Travan, Giovanni Chiriacò
BACKGROUND: Low back pain (LBP) is common in athletes. LBP can be detrimental to athletic performance and health. Factors predisposing to LBP in athletes remain elusive and require further studies. We investigated whether carriage of a specific genotype and/or allele of vitamin D receptor gene (VDR) FokI polymorphism (rs2228570) was a risk factor for LBP in athletes of different sports disciplines. METHODS: This genotype/phenotype association case-control study included 60 Italian athletes (25 females and 35 males; mean age 33...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28182509/knowledge-of-task-end-point-influences-pacing-and-performance-during-simulated-rugby-league-match-play
#9
Jamie Highton, Thomas Mullen, Craig Twist
PURPOSE: To examine the influence of knowledge of exercise duration on pacing and performance during simulated rugby league match-play. METHODS: Thirteen male university rugby players completed three simulated rugby league matches (RLMSP-i) on separate days in a random order. In a control trial, participants were informed that they would be performing 2 x 23 min bouts (separated by 20 min) of the RLMSP-i (CON). In a second trial, participants were informed that they would be performing 1 x 23 min bout of the protocol, but were then asked to perform another 23 min bout (DEC)...
February 9, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28173970/a-comparison-of-catastrophic-injury-incidence-rates-by-provincial-rugby-union-in-south-africa
#10
Marelise Badenhorst, Evert A L M Verhagen, Willem van Mechelen, Michael I Lambert, Wayne Viljoen, Clint Readhead, Gail Baerecke, James C Brown
OBJECTIVES: To compare catastrophic injury rates between the 14 South African Provincial Rugby Unions. DESIGN: A prospective, population-based study conducted among all South African Unions between 2008-2014. METHODS: Player numbers in each Union were obtained from South African Rugby's 2013 Census. Catastrophic injuries were analysed from BokSmart's serious injury database. Incidence rates with 95% Confidence Intervals were calculated. Catastrophic injuries (Acute Spinal Cord Injuries and catastrophic Traumatic Brain Injuries) within Unions were compared statistically, using a Poisson regression with Incidence Rate Ratios (IRR) and a 95% confidence level (p<0...
January 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28169150/no-relationship-exists-between-urinary-nt-probnp-and-gps-technology-in-professional-rugby-union
#11
Angus Lindsay, John G Lewis, Nicholas Gill, Nick Draper, Steven P Gieseg
OBJECTIVES: We investigated the level of cardiovascular stress associated with professional rugby union and whether these changes could be explained through external workload systems like GPS and video analysis. DESIGN: Urine samples (14 in game one and 13 in game two) were collected from professional rugby players before, immediately post- and 36h post-play in two consecutive games. METHODS: Urine was analysed for NT-proBNP by ELISA. Comparison with GPS (player-load and distance covered at specific speed bands) and video analysis (total impacts) were conducted...
January 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28169148/risk-factors-that-predict-severe-injuries-in-university-rugby-sevens-players
#12
Rezvan Mirsafaei Rizi, Simon S Yeung, Nathan J Stewart, Ella W Yeung
OBJECTIVES: To investigate injury incidence and the influence of physical fitness parameters on the risk of severe injuries in players on rugby sevens university teams. DESIGN: Prospective cohort study. METHODS: Rugby players from three universities (N=104; 90M:14F; 20.6±1.9years) were recruited before the beginning of the season. Players underwent pre-season assessments of power, strength, speed, agility, endurance, stability, and flexibility...
January 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28166184/postactivation-potentiation-and-change-of-direction-speed-in-elite-academy-rugby-players
#13
Chris Bishop, Anthony N Turner, Jon Cree, Sean Maloney, James Marshall, Paul Jarvis
This study investigated the effect of preceding pro-agility sprints with maximal isometric squats to determine if postactivation potentiation (PAP) could be harnessed in change of direction speed. Sixteen elite under-17 rugby union players (age: 16 ± 0.41yrs; body mass: 88.7 ± 12.1kg, height: 1.83 ± 0.07m) from an Aviva Premiership rugby club were tested. Subjects performed a change of direction specific warm-up, followed by two baseline pro-agility tests. After 10 minutes recovery, 3 x 3-second maximal isometric squats with a 2 minute recovery between sets were completed as a conditioning activity (CA) on a force plate where peak force and mean rate of force development over 300 milliseconds were measured...
February 1, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28154129/breathlessness-and-neck-swelling-after-a-rugby-game
#14
Oliver M J Gittoes, Neil J L Gittoes
No abstract text is available yet for this article.
February 2, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28153609/wearable-microtechnology-can-accurately-identify-collision-events-during-professional-rugby-league-match-play
#15
Billy T Hulin, Tim J Gabbett, Rich D Johnston, David G Jenkins
OBJECTIVES: Collision frequency during rugby league matches is associated with team success, greater and longer lasting fatigue and increased injury risk. This study researched the sensitivity and specificity of microtechnology to count collision events during rugby league matches. DESIGN: Diagnostic accuracy study. METHODS: While wearing a microtechnology device (Catapult, S5), eight professional rugby league players were subjected to a total of 380 collision events during matches...
January 23, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28150870/seated-limits-of-stability-of-athletes-with-disabilities-with-regard-to-competitive-levels-and-sport-classification
#16
Paula B R Santos, Patrícia S Vigário, Míriam R M Mainenti, Arthur S Ferreira, Thiago Lemos
We aimed to evaluate the influence of wheelchair rugby (WR) classification and competitive level on the seated limits of stability of athletes with disabilities. Twenty-eight athletes were recruited from international and national level WR teams. Athletes were distributed into three groups per their classification: low-point (0.5-1.5-point); mid-point (2.0-2.5-point); and high-point (3.0-3.5-point). Athletes were asked to sit on a force platform placed upon a wooden block and to lean the body as far as possible in eight pre-defined directions...
February 2, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28150163/fatigue-and-recovery-in-rugby-a-review
#17
REVIEW
Francisco Tavares, Tiaki Brett Smith, Matthew Driller
The physical demands and combative nature of rugby lead to notable levels of muscle damage. In professional rugby, athletes only have a limited timeframe to recover following training sessions and competition. Through the implementation of recovery strategies, sport scientists, practitioners and coaches have sought to reduce the effect of fatigue and allow athletes to recover faster. Although some studies demonstrate that recovery strategies are extensively used by rugby athletes, the research remains equivocal concerning the efficacy of recovery strategies in rugby...
February 2, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28147703/does-short-term-gluteal-activation-enhance-muscle-performance
#18
Darryl J Cochrane, Michael C Harnett, Scott C Pinfold
A reduction in gluteus maximus (GM) strength may contribute to the etiology of musculoskeletal impairments and lower-extremity injuries. Currently, there is a paucity of evidence regarding the efficacy of implementing a short-term gluteal activation programme to improving muscle performance. Twenty four semi-professional rugby males were assigned randomly to a gluteal activation group (GLUTE) or a control group (CON). During the 6-week training intervention, the GLUTE and CON groups performed the same training, however that GLUTE group performed seven gluteal activation exercises three times weekly prior to their normal training sessions...
February 1, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28146395/concussions-and-head-injuries-in-english-community-rugby-union-match-play
#19
Simon P Roberts, Grant Trewartha, Michael England, William Goodison, Keith A Stokes
BACKGROUND: Previous research has described general injury patterns in community-level rugby union, but specific information on time-loss head injuries has not been reported. PURPOSE: To establish the incidence and nature of significant time-loss head injuries in English community rugby match play, and to identify the injury risk for specific contact events. STUDY DESIGN: Descriptive epidemiology study. METHODS: Over 6 seasons, injury information was collected from 46 (2009-2010), 67 (2010-2011), 76 (2011-2012), 50 (2012-2013), 67 (2013-2014), and 58 (2014-2015) English community rugby clubs (Rugby Football Union levels 3-9) over a total of 175,940 hours of player match exposure...
February 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28146030/strength-and-conditioning-practices-in-adolescent-rugby-players-relationship-with-changes-in-physical-qualities
#20
Jonathon J S Weakley, Kevin Till, Joshua Darrall-Jones, Gregory A B Roe, Padraic J Phibbs, Dale Read, Ben L Jones
Adolescent rugby players benefit from the implementation of resistance training. However resistance training practices and how they influence short-term physical change is unknown. Therefore the purpose of this study was to quantify resistance training practices, evaluate physical development, and relate these changes to resistance training variables across 12-weeks in adolescent rugby union players. Thirty-five male adolescent rugby union players participated in the study with subjects completing an anthropometric and physical testing battery pre- and post- a 12-week in-season mesocycle...
January 30, 2017: Journal of Strength and Conditioning Research
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