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https://www.readbyqxmd.com/read/28642222/risk-factors-for-head-injury-events-in-professional-rugby-union-a-video-analysis-of-464-head-injury-events-to-inform-proposed-injury-prevention-strategies
#1
Ross Tucker, Martin Raftery, Simon Kemp, James Brown, Gordon Fuller, Ben Hester, Matthew Cross, Ken Quarrie
OBJECTIVES: The tackle is responsible for the majority of head injuries during rugby union. In order to address head injury risk, risk factors during the tackle must first be identified. This study analysed tackle characteristics in the professional game in order to inform potential interventions. METHODS: 464 tackles resulting in a head injury assessment (HIA) were analysed in detail, with tackle type, direction, speed, acceleration, nature of head contact and player body position the characteristics of interest...
June 22, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28641863/a-comparison-of-different-heat-maintenance-methods-implemented-during-a-simulated-half-time-period-in-professional-rugby-union-players
#2
Mark Russell, Reuben Tucker, Christian J Cook, Thibault Giroud, Liam P Kilduff
OBJECTIVES: In thermoneutral conditions, half-time is associated with reductions in body temperature that acutely impair performance. This laboratory-based study compared active, passive, and combined methods of half-time heat maintenance. DESIGN: Randomised, counterbalanced, cross-over. METHODS: After a standardised warm-up (WU) and 15min of rest, professional Rugby Union players (n=20) completed a repeated sprint test (RSSA1). Throughout a simulated half-time (temperature: 20...
June 8, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28627293/new-evidence-of-relative-age-effects-in-super-elite-sportsmen-a-case-for-the-survival-and-evolution-of-the-fittest
#3
Benjamin D Jones, Gavin P Lawrence, Lew Hardy
The relative age effect (RAE) describes an overrepresentation of players born early (Q1) in a selection year and is highly prevalent within youth sport pathways. However, a dearth of research has investigated the RAE at the "super-elite" level. The present research assessed the presence of RAE in super-elite performers. Study 1 investigated RAEs in the world's best international Test cricketers (N = 262) over a 20-year period according to a robust and stringent "super-elite" criteria. Results revealed the RAE (Q1) when all disciplines were combined...
June 19, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28573403/a-kinetic-model-describing-injury-burden-in-team-sports
#4
Colin W Fuller
BACKGROUND: Injuries in team sports are normally characterised by the incidence, severity, and location and type of injuries sustained: these measures, however, do not provide an insight into the variable injury-burden experienced during a season. Injury burden varies according to the team's match and training loads, the rate at which injuries are sustained and the time taken for these injuries to resolve. At the present time, this time-based variation of injury burden has not been modelled...
June 1, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28564743/forced-retirement-from-professional-rugby-union-is-associated-with-symptoms-of-distress
#5
James Craig Brown, Gino Kerkhoffs, Mike I Lambert, Vincent Gouttebarge
Rugby has a higher injury burden than other popular sports, such as football. Athletes who are forced to retire as a result of injury are associated with poor mental health. With its high injury burden, professional rugby players might be at risk of mental health conditions associated with injury-related forced retirement. This study aimed to compare mental health between former professional rugby players who were and weren't forced to retire. A questionnaire including the 4DSQ (distress), GHQ-12 (anxiety/depression), PROMIS short-form (sleep disturbance) and AUDIT-C (alcohol misuse) was completed by retired professional players from Ireland, France and South Africa...
May 31, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28562186/the-appropriateness-of-training-exposures-for-match-play-preparation-in-adolescent-schoolboy-and-academy-rugby-union-players
#6
Padraic J Phibbs, Ben Jones, Dale B Read, Gregory A B Roe, Joshua Darrall-Jones, Jonathon J S Weakley, Andrew Rock, Kevin Till
The aim of this study was to compare the physical and movement demands between training and match-play in schoolboy and academy adolescent rugby union (RU) players. Sixty-one adolescent male RU players (mean ± SD; age 17.0 ± 0.7 years) were recruited from four teams representing school and regional academy standards. Players were categorised into four groups based on playing standard and position: schoolboy forwards (n = 15), schoolboy backs (n = 15), academy forwards (n = 16) and academy backs (n = 15)...
May 31, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28558447/physical-characteristics-associated-with-neck-pain-and-injury-in-rugby-union-players
#7
Suzanne J Snodgrass, Peter G Osmotherly, Susan A Reid, Peter D Milburn, Darren A Rivett
BACKGROUND: Neck pain and injury are common in rugby union. Physical characteristics predisposing players to neck injury are largely unknown. This study aimed to determine physical characteristics associated with neck pain and injury in rugby union players. METHODS: Semi-professional rugby union players (n=142) underwent pre-season measurements including cervical active range of motion (AROM), strength, sensorimotor proprioception (joint position error), and anthropometry...
May 30, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28530450/the-dose-response-relationship-between-training-load-and-aerobic-fitness-in-academy-rugby-union-players
#8
Richard Taylor, Dajo Sanders, Tony Myers, Grant Abt, Celia A Taylor, Ibrahim Akubat
PURPOSE: The aim of this study was to identify the dose-response relationship between measures of training load (TL) and changes in aerobic fitness in academy rugby union players. METHODS: Training data from ten academy rugby union players was collected during a six-week in-season period. Participants completed a lactate threshold (LT) test which was used to assess VO2max and velocities at VO2max, 2 mmol·L(-1) (vLT) and 4 mmol·L(-1) (vOBLA) as measures of aerobic fitness...
May 22, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28525884/training-volume-and-soft-tissue-injury-in-professional-and-non-professional-rugby-union-players-a-systematic-review
#9
Shane Ball, Mark Halaki, Rhonda Orr
AIM: To investigate the relationship between training volume and soft tissue injury incidence, and characterise soft tissue injury in rugby union players. DESIGN: A systematic search of electronic databases was performed. The search strategy combined terms covering: training volume and injury, and rugby union, and players of all levels. DATA SOURCES: Medline, SPORTDiscus, Web of Science, Embase, PubMed. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Studies were included if they reported: male rugby union players, a clear definition of a rugby union injury, the amount of training volume undertaken by participants, and epidemiological data for soft-tissue injuries including the number or incidence...
October 8, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28514202/the-physical-characteristics-of-match-play-in-english-schoolboy-and-academy-rugby-union
#10
Dale B Read, Ben Jones, Padraic J Phibbs, Gregory A B Roe, Joshua Darrall-Jones, Jonathon J S Weakley, Kevin Till
The aim was to compare the physical characteristics of under-18 academy and schoolboy rugby union competition by position (forwards and backs). Using a microsensor unit, match characteristics were recorded in 66 players. Locomotor characteristics were assessed by maximum sprint speed (MSS) and total, walking, jogging, striding and sprinting distances. The slow component (<2 m · s(-1)) of PlayerLoad(TM) (PLslow), which is the accumulated accelerations from the three axes of movement, was analysed as a measure of low-speed activity (e...
May 17, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28510582/the-worst-case-scenario-locomotor-and-collision-demands-of-the-longest-periods-of-gameplay-in-professional-rugby-union
#11
Cillian Reardon, Daniel P Tobin, Peter Tierney, Eamonn Delahunt
A number of studies have used global positioning systems (GPS) to report on positional differences in the physical game demands of rugby union both on an average and singular bout basis. However, the ability of these studies to report quantitative data is limited by a lack of validation of certain aspects of measurement by GPS micro-technology. Furthermore no study has analyzed the positional physical demands of the longest bouts of ball-in-play time in rugby union. The aim of the present study is to compare the demands of the single longest period of ball-in-play, termed "worst case scenario" (WCS) between positional groups, which have previously been reported to have distinguishable game demands...
2017: PloS One
https://www.readbyqxmd.com/read/28481676/technical-determinants-of-tackle-and-ruck-performance-in-international-rugby-union
#12
Sharief Hendricks, Tiffany van Niekerk, Drew Wade Sin, Mike Lambert, Steve den Hollander, James Brown, Willie Maree, Paul Treu, Kevin Till, Ben Jones
The most frequently occurring contact events in rugby union are the tackle and ruck. The ability repeatedly to engage and win the tackle and ruck has been associated with team success. To win the tackle and ruck, players have to perform specific techniques. These techniques have not been studied at the highest level of rugby union. Therefore, the purpose of this study was to identify technical determinants of tackle and ruck performance at the highest level of rugby union. A total of 4479 tackle and 2914 ruck events were coded for the Six Nations and Championship competitions...
May 8, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28476897/dr-matthew-cross-epidemiology-and-risk-factors-for-injury-in-professional-rugby-union
#13
Matthew J Cross
No abstract text is available yet for this article.
May 5, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28476439/misunderstandings-of-concussion-within-a-youth-rugby-population
#14
Philip E Kearney, James See
OBJECTIVES: The recognition and management of concussion has become a major health concern within rugby union. Identifying misconceptions and attitudes regarding concussion is valuable for informing player education. Therefore, the purpose of this study was to explore the knowledge of, and attitudes towards, concussion in subgroups of youth rugby players. DESIGN: Cross-sectional survey. METHODS: Information sheets and consent forms were distributed at training sessions for multiple teams at each of three schools and three clubs...
April 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28462570/anthropometric-and-performance-characteristics-of-the-german-rugby-union-7s-team
#15
Erich Hohenauer, Alfred M Rucker, Peter Clarys, Ursula M Küng, Rahel Stoop, Ron Clijsen
BACKGROUND: Somatotyping is advantageous in sports for the optimal development of performance level and injury prevention. The aim of this study was to describe the anthropometric and physical performance characteristics of the German national rugby union 7s team. Seventeen male rugby players, classified as forwards (n=9; 24.2±2.1 years) and backs (n=8; 24.3±5.05 years) were assessed. METHODS: Anthropometric measurements included: body height, weight, height to weight ratio (H/W), five skinfolds, biepicondylar humerus and femur breadth, upper arm- and calf girth, estimated lower body fat percentage and determination of the individual and mean somatotype...
April 28, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28459290/injury-patterns-physiological-profile-and-performance-in-university-rugby-union
#16
Shane Ball, Mark Halaki, Tristan Sharp, Rhonda Orr
OBJECTIVES: Rugby union is a physically demanding collision sport with high injury rates. There is a common perception that higher training loads result in greater injury risk in field-based sports. This study aims to determine injury, anthropometric and physical performance characteristics in junior rugby union players and investigate the interaction between training load and injury across a competitive season. DESIGN: Prospective cohort study. METHODS: Fifty-one players (age 19...
May 1, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28445232/organised-chaos-in-late-specialisation-team-sports-weekly-training-loads-of-elite-adolescent-rugby-union-players
#17
Padraic J Phibbs, Ben Jones, Gregory Roe, Dale Read, Joshua Darrall-Jones, Jonathon Weakley, Andrew Rock, Kevin Till
The aim of this study was to quantify the mean weekly training load (TL) of elite adolescent rugby union players participating in multiple teams, and examine the differences between playing positions. Twenty elite male adolescent rugby union players (17.4 ± 0.7 years) were recruited from a regional academy and categorised by playing position; forwards (n=10) and backs (n=10). Global positioning system and accelerometer microtechnology was used to quantify external TL, and session-rating of perceived exertion (sRPE) was used to quantify internal TL during all sessions throughout a 10-week in-season period...
April 18, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28426240/influence-of-glenoid-defect-size-and-bone-fragment-size-on-the-clinical-outcome-after-arthroscopic-bankart-repair-in-male-collision-contact-athletes
#18
Shigeto Nakagawa, Tatsuo Mae, Kenji Yoneda, Kazutaka Kinugasa, Hiroyuki Nakamura
BACKGROUND: The usefulness of arthroscopic Bankart repair for collision/contact athletes has varied in previous reports. PURPOSE: To investigate the influence of glenoid rim morphologic characteristics on the clinical outcome after arthroscopic Bankart repair without additional reinforcement procedures in male collision/contact athletes, including athletes with a large glenoid defect. STUDY DESIGN: Case-control study; Level of evidence, 3...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28425057/quantifying-synergies-in-two-versus-one-situations-in-team-sports-an-example-from-rugby-union
#19
P Passos, J Milho, C Button
Collective behaviors in team sports result in players forming interpersonal synergies that contribute to performance goals. Because of the huge amount of variables that continuously constrain players' behavior during a game, the way that these synergies are formed remain unclear. Our aim was to quantify interpersonal synergies in the team sport of Rugby Union. For that purpose we used the Uncontrolled Manifold Hypothesis (UCM) to identify interpersonal synergies that are formed between ball carrier and support player in two-versus-one situations in Rugby Union...
April 19, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28409514/neck-strength-and-self-reported-neck-dysfunction-what-is-the-impact-of-a-season-of-rugby-union
#20
Danielle M Salmon, S John Sullivan, Phil Handcock, Nancy J Rehrer, Brian Niven
BACKGROUND: Neck strength has been reported to reduce the incidence of concussions and neck injuries. However little is known about how neck strength changes over a playing season. AIM: To understand the impact a 20-week rugby season has on neck strength, neck pain (NP) and neck stiffness (NS) in a cohort of rugby players, relative to a non-contact control group. METHODS: This prospective cohort study employed a fixed-frame dynamometer to measure neck strength in a simulated contact posture in rugby players (n=32) and controls (n=15)...
April 13, 2017: Journal of Sports Medicine and Physical Fitness
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