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https://www.readbyqxmd.com/read/27900192/vertical-stiffness-is-not-related-to-anterior-cruciate-ligament-elongation-in-professional-rugby-union-players
#1
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/27900153/does-the-new-rugby-union-scrum-sequence-positively-influence-the-hooker-s-in-situ-spinal-kinematics
#2
Ramesh Swaminathan, Jonathan M Williams, Michael D Jones, Peter S Theobald
BACKGROUND: Scrummaging is unique to rugby union and involves 2 'packs' of 8 players competing to regain ball possession. Intending to serve as a quick and safe method to restart the game, injury prevalence during scrummaging necessitates further evaluation of this environment. AIMS: The aim of this study was to determine the effect of scrummage engagement sequences on spinal kinematics of the hooker. The conditions investigated were: (1) live competitive scrummaging using the new 'crouch, bind, set' sequence; (2) live competitive scrummaging using the old 'crouch touch pause engage' sequence and (3) training scrummaging using a scrum machine...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27900149/video-analysis-of-concussion-injury-mechanism-in-under-18-rugby
#3
Sharief Hendricks, Sam O'Connor, Michael Lambert, James C Brown, Nicholas Burger, Sarah Mc Fie, Clint Readhead, Wayne Viljoen
BACKGROUND: Understanding the mechanism of injury is necessary for the development of effective injury prevention strategies. Video analysis of injuries provides valuable information on the playing situation and athlete-movement patterns, which can be used to formulate these strategies. Therefore, we conducted a video analysis of the mechanism of concussion injury in junior-level rugby union and compared it with a representative and matched non-injury sample. METHODS: Injury reports for 18 concussion events were collected from the 2011 to 2013 under-18 Craven Week tournaments...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27900148/the-efficacy-of-a-movement-control-exercise-programme-to-reduce-injuries-in-youth-rugby-a-cluster-randomised-controlled-trial
#4
M D Hislop, K A Stokes, S Williams, C D McKay, M England, S P T Kemp, G Trewartha
BACKGROUND: Injuries to youth rugby players have become an increasingly prominent health concern, highlighting the importance of developing and implementing appropriate preventive strategies. A growing body of evidence from other youth sports has demonstrated the efficacy of targeted exercise regimens to reduce injury risk. However, studies have yet to investigate the effect of such interventions in youth contact sport populations like rugby union. OBJECTIVE: To determine the efficacy of an evidence-based movement control exercise programme compared with a sham exercise programme to reduce injury risk in youth rugby players...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27888213/coach-directed-education-is-associated-with-injury-prevention-behaviour-in-players-an-ecological-cross-sectional-study
#5
James C Brown, Sugnet Gardner-Lubbe, Michael Ian Lambert, Willem van Mechelen, Evert Verhagen
BACKGROUND/AIM: Rugby union ('rugby') presents an above-average risk of injury to participants. BokSmart is a South African nationwide intervention that aims to reduce rugby-related injuries in players. This is achieved by educating coaches and referees to improve injury behaviour of players. Thus, the aim of this study was to assess if the receipt of injury-prevention education was associated with player behaviour. METHODS: Junior (n=2279) and senior (n=1642) players, who attended merit-based South African Rugby tournaments (2008-2012), completed an anonymous questionnaire...
November 25, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27870696/strength-and-conditioning-and-concurrent-training-practices-in-elite-rugby-union
#6
Thomas W Jones, Andrew Smith, Lindsay S Macnaughton, Duncan N French
Jones, TW, Smith, A, Macnaughton, LS, and French, DN. Strength and Conditioning and Concurrent Training Practices in Elite Rugby Union. J Strength Cond Res 30(12): 3354-3366, 2016-There is limited published research on strength and conditioning (S&C) practices in elite rugby union (RU). Information regarding testing batteries and programme design would provide valuable information to both applied practitioners and researchers investigating the influence of training interventions or preperformance strategies...
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
#7
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
https://www.readbyqxmd.com/read/27855546/injuries-in-australian-school-level-rugby-union
#8
Felix T Leung, Melinda M Franettovich Smith, Julie A Hides
There is a high incidence of injuries in rugby union due to the physical nature of the game. In youth rugby union, there are large variations in injury rates reported. Our study investigated the rates of injuries in school-level rugby union players in Australia using the consensus statement for rugby union injuries. Injury surveillance was conducted on 480 rugby players from 1 school in Queensland, Australia. Injury data were collected using paper-based injury recording forms during the 8-week rugby season using a "medical-attention" injury definition...
November 18, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27834553/monitoring-what-matters-a-systematic-process-for-selecting-training-load-measures
#9
Sean Williams, Grant Trewartha, Matthew J Cross, Simon P T Kemp, Keith A Stokes
PURPOSE: Numerous derivative measures can be calculated from the simple session-Rating of Perceived Exertion (sRPE) tool for monitoring training loads (e.g., acute:chronic workload and cumulative loads). The challenge from a practitioner's perspective is to decide which measures they should calculate and monitor in their athletes for injury prevention purposes. The aim of the current study was to outline a systematic process of data reduction and variable selection for such training load measures...
November 11, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27824865/movement-demands-of-elite-under-20s-and-senior-international-rugby-union-players
#10
Daniel J Cunningham, David A Shearer, Scott Drawer, Ben Pollard, Robin Eager, Neil Taylor, Christian J Cook, Liam P Kilduff
This study compared the movement demands of elite international Under-20 age grade (U20s) and senior international rugby union players during competitive tournament match play. Forty elite professional players from an U20 and 27 elite professional senior players from international performance squads were monitored using 10Hz global positioning systems (GPS) during 15 (U20s) and 8 (senior) international tournament matches during the 2014 and 2015 seasons. Data on distances, velocities, accelerations, decelerations, high metabolic load (HML) distance and efforts, and number of sprints were derived...
2016: PloS One
https://www.readbyqxmd.com/read/27821386/rugby-union-needs-a-contact-skill-training-programme
#11
EDITORIAL
Sharief Hendricks, Kevin Till, James Craig Brown, Ben Jones
No abstract text is available yet for this article.
November 7, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27820726/%C3%AE-hydroxy-%C3%AE-methylbutyrate-hmb-supplementation-effects-on-body-mass-and-performance-in-elite-male-rugby-union-players
#12
Nicholas D McIntosh, Thomas D Love, Jillian Haszard, Hamish Osborne, Katherine E Black
Pre-season is characterized by high training volumes with short recovery periods β-hydroxy β-methylbutyrate (HMB) has been postulated to assist with recovery. HMB has been shown to improve strength and body composition amongst untrained groups the benefits of HMB amongst trained populations are unclear due to the methodologies employed. This randomized control trail determined the effects of 11 weeks HMB supplementation on body mass and performance measures in 27 elite rugby players. HMB group (n=13) mean±SD age 20...
October 27, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27813392/physical-and-physiological-differences-of-backs-and-forwards-from-the-brazilian-national-rugby-union-team
#13
Fábio Y Nakamura, Lucas A Pereira, José E Moraes, Ronaldo Kobal, Katia Kitamura, Cesar C Cal Abad, Luís M Teixeira Vaz, Irineu Loturco
BACKGROUND: The aim of this study was to compare backs and forwards rugby union players recruited to a National team in the following physical and physiological indicators: anthropometrics, squat jump (SJ), countermovement jump (CMJ), 10- and 30-m sprint, resting heart rate variability (HRV), Yo-Yo test and heart rate (HR) at 2-min of test. METHODS: The measurements were performed on the first day of a training camp planned to finely select the players who would participate in the 2016 America's Rugby Championship...
November 4, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27806997/evaluation-of-the-effectiveness-and-implementation-of-the-boksmart-safe-six-injury-prevention-programme-a-study-protocol
#14
Nicola Sewry, Evert Verhagen, Mike Lambert, Willem van Mechelen, James Brown
BACKGROUND: The injury burden in rugby union ('rugby') is high. While exercise-based injury prevention programmes have successfully reduced injuries in other sports such as football, there is minimal research on this topic in rugby union. OBJECTIVE: To evaluate the effectiveness and implementation of an exercise-based intervention (BokSmart Safe Six) in junior rugby players that aims to reduce the injury risk profile and burden of injury. SETTING: 14-16-year-old junior rugby players in two geographically separated locations in South Africa over the 2017 rugby playing season...
November 2, 2016: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/27806003/fitness-profiles-of-elite-adolescent-irish-rugby-union-players
#15
Daniel J Wood, Garrett Coughlan, Eamonn Delahunt
Rugby unions throughout the world are implementing player development models in order to prepare young players to meet the demands of professional rugby union. An example of this is the Irish Rugby Football Union Long Term Player Development model. The purpose of the present study was to provide normative data relating to the physical fitness of elite adolescent Irish rugby union players and determine the differences in the physical capacities between players in the forward and back units, as well as providing descriptive data for the position categorizations within these units for this unique population...
October 27, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27803629/skills-associated-with-line-breaks-in-elite-rugby-union
#16
Steve den Hollander, James Brown, Michael Lambert, Paul Treu, Sharief Hendricks
The ability of the attacking team to break through the defensive line is a key indicator of success as it creates opportunities to score tries. The aim of this study was to analyse line breaks and identify the associated skills and playing characteristics. The 2013 Super Rugby season (125 games) was analysed, in which 362 line breaks were identified and coded using variables that assessed team patterns and non-contact attacking skills in the phases preceding the line break. There was an average of 3 line breaks per game, with 39% of line breaks resulting in a try...
September 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27802785/the-experience-of-captaincy-in-professional-sport-the-case-of-elite-professional-rugby
#17
Stewart T Cotterill, Richard Cheetham
The captain is perceived to be an important member of the leadership structure within teams across many professional sports. However, while there is a general acceptance that this is the case, there is very little research exploring the role and associated demands at an elite level. As a result, the aim of this study was to explore the captaincy experiences of elite professional rugby union captains. The participants were eight male captains purposefully sampled for this study. Participants were interviewed individually to gain an understanding of each participant's captaincy experiences...
November 1, 2016: European Journal of Sport Science
https://www.readbyqxmd.com/read/27781193/catastrophic-cervical-spine-injuries-in-contact-sports
#18
Michael James Hutton, Robert A McGuire, Robert Dunn, Richard Williams, Peter Robertson, Bruce Twaddle, Patrick Kiely, Andrew Clarke, Keyvan Mazda, Paul Davies, Krystle T Pagarigan, Joseph R Dettori
Study Design Systematic review. Objectives To determine the incidence of catastrophic cervical spine injuries (CCSIs) among elite athletes participating in contact team sports and whether the incidence varies depending on the use of protective gear or by player position. Methods Electronic databases and reference lists of key articles published from January 1, 2000, to January 29, 2016, were searched. Results Fourteen studies were included that reported CCSI in rugby (n = 10), American football (n = 3), and Irish hurling (n = 1)...
November 2016: Global Spine Journal
https://www.readbyqxmd.com/read/27741401/epidemiology-of-injuries-in-senior-male-rugby-union-sevens-a-systematic-review
#19
Antonio Miguel Cruz-Ferreira, Eduardo Miguel Cruz-Ferreira, Luiz Miguel Santiago, Luis Taborda Barata
OBJECTIVES: In 2016 the Rugby Union variant of sevens will enter the official Olympic Programme. Until now, most of injury surveillance studies in Rugby Union focus on elite 15-a-side cohorts, with reported injury incidence rates reaching 96 per 1000 player-match-hours, and mean severity set at 20 days. Sparse data is available regarding rugby sevens. The aim of this study was to systematically review available data regarding the epidemiology of injuries in senior male rugby sevens. METHODS: Electronic databases (Pubmed, Google Scholar, SCOPUS, Scielo and IndexRMP) were searched in September 2015, complemented by manual searches of bibliographies and relevant 'grey literature'...
October 14, 2016: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/27736256/validity-of-10-hz-gps-and-timing-gates-for-assessing-maximum-velocity-in-professional-rugby-union-players
#20
Gregory Roe, Joshua Darrall-Jones, Christopher Black, William Shaw, Kevin Till, Ben Jones
PURPOSE: The purpose of this study was to investigate the validity of timing gates and 10 Hz GPS units (Catapult Optimeye S5) against a criterion measure (50 Hz radar gun) for assessing maximum sprint velocity (Vmax). METHODS: Nine male professional rugby union players performed three maximal 40 m sprints with three minutes rest between each effort with Vmax assessed simultaneously via timing gates, 10 Hz GPSOpen (Openfield software), GPSSprint (Sprint software) and radar gun...
October 13, 2016: International Journal of Sports Physiology and Performance
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