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https://www.readbyqxmd.com/read/29451056/epidemiology-of-injuries-in-portuguese-senior-male-rugby-union-sevens-a-cohort-prospective-study
#1
Antonio Miguel Cruz-Ferreira, Eduardo Miguel Cruz-Ferreira, João Diogo Silva, Ricardo Maia Ferreira, Luiz Miguel Santiago, Luis Taborda-Barata
OBJECTIVES: To assess the incidence, type and location of injuries sustained during the Portuguese rugby union sevens circuit. To investigate the influence of players' training loads on injury risk. METHODS: A prospective cohort study recording time-loss injuries was conducted with all teams competing in the Portuguese national rugby sevens circuit (eight from the top-tier and seven from the second-tier). Main outcome measures included: incidence rate, anatomical location, type, injury incident and severity...
February 16, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29442612/a-review-of-a-decade-of-rugby-union-injury-epidemiology-2007-2017
#2
Pierre L Viviers, Jeandré T Viljoen, Wayne Derman
CONTEXT: Rugby union is the most widely played team collision sport globally. As with other contact sports, there is substantial risk of injury. To date, the majority of studies on injury epidemiology have focused on elite male cohorts, which inherently prevents extrapolation of research findings to other groups within the player continuum. This review aims to describe emerging injury trends across the spectrum of various rugby union subpopulations and to highlight gaps that may influence future injury prevention tactics...
February 1, 2018: Sports Health
https://www.readbyqxmd.com/read/29440616/william-howard-guest-rees
#3
Keith Meldrum, Bill Watson
A distinguished vet who became the UK's chief veterinary officer, dealing with issues such as salmonella in eggs and bovine spongiform encephalopathy. His passions were his family and rugby.
February 10, 2018: Veterinary Record
https://www.readbyqxmd.com/read/29431593/caffeine-use-in-a-super-rugby-game-and-its-relationship-to-post-game-sleep
#4
Ian C Dunican, Charles C Higgins, Maddison J Jones, Michael W Clarke, Kevin Murray, Brian Dawson, John A Caldwell, Shona L Halson, Peter R Eastwood
OBJECTIVE: To examine the relationship between regular game-related caffeine consumption on sleep after an evening Super Rugby game. METHODS: Twenty elite rugby union players wore a wrist-activity monitor to measure sleep for three days before, three days after and on the night of an evening Super Rugby game (19:00-21:00). Players ingested caffeine as they would normally (i.e. before and sometimes during a game) and saliva samples were collected before (17:00) and after (21:30) the game for caffeine concentration...
February 12, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29431556/the-fit-matters-influence-of-accelerometer-fitting-and-training-drill-demands-on-load-measures-in-rugby-league-players
#5
Blake D McLean, Cloe Cummins, Greta Conlan, Grant Duthie, Aaron J Coutts
PURPOSE: Determine the relationship between drill type and accelerometer-derived loads during various team sport activities, and examine the influence of unit fitting on these loads. METHODS: Sixteen rugby league players were fitted with microtechnology devices in either manufacturer vests or playing jerseys before completing standardised running, agility and tackling drills. Two-dimensional (2D) and three-dimensional (3D) accelerometer loads (BodyLoadTM) per km were compared across drills and fittings (i...
February 12, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29431538/the-use-of-microtechnology-to-monitor-collision-performance-in-professional-rugby-union
#6
Simon J MacLeod, Chris Hagan, Mikel Egaña, Jonny Davis, David Drake
AIMS: To determine if microtechnology - derived collision loads discriminate between collision performance and compare the physical and analytical components of collision performance between positional groups. METHODS: Thirty-seven professional male rugby union players participated in this study. Collision events from 11 competitive matches were coded using specific tackle and carry classifications based on the ball-carrier's collision outcome. Collisions were automatically detected using 10Hz microtechnology units...
February 12, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29431537/workload-fatigue-and-muscle-damage-in-an-u20-rugby-union-team-over-an-intensified-international-tournament
#7
Mathieu Lacome, Christopher Carling, Jean-Philippe Hager, Gerard Dine, Julien Piscione
PURPOSE: This study examined the effects of an intensified tournament on workload, perceptual and neuromuscular fatigue and muscle damage responses in an international under-20 rugby union team. METHODS: Players were subdivided into two groups according to match-play exposure time: high (HEG, n=13) and low (LEG, n=11). Measures monitored over the 19-day period included training session (n=10) and match (n=5) workload determined via global positioning systems and session ratings of perceived exertion (sRPE)...
February 12, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29403318/cauliflower-ear-a-minimally-invasive-treatment-method-in-a-wrestling-athlete-a-case-report
#8
Josef Haik, Or Givol, Rachel Kornhaber, Michelle Cleary, Hagit Ofir, Moti Harats
Acute auricular hematoma can be caused by direct blunt trauma or other injury to the external ear. It is typically seen in those who practice full contact sports such as boxing, wrestling, and rugby. "Cauliflower ear" deformity, fibrocartilage formation during scarring, is a common complication of auricular hematomas. Therefore, acute drainage of the hematoma and postprocedural techniques for preventing recurrence are necessary for preventing the deformity. There are many techniques although no superior method of treatment has been found...
2018: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/29401203/the-effect-of-accommodating-resistance-on-the-post-activation-potentiation-response-in-rugby-league-players
#9
David J Scott, Massimiliano Ditroilo, Phil Marshall
This study examined the post-activation potentiation (PAP) response of two conditioning activities (CA), the hexbar deadlift (HBD) and back squat (BS), combined with accommodating resistance; this adds a percentage of the total resistance during the exercise. Twenty amateur rugby league players performed two experimental trials and a control trial without a CA. Participants performed a countermovement jump (CMJ) before and 30, 90, and 180 seconds after one set of three repetitions of each CA at 70% 1 repetition maximum (RM), with up to an additional 23% 1RM from accommodating resistance...
February 1, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29401201/relationship-between-reactive-strength-index-variants-in-rugby-league-players
#10
John J McMahon, Timothy J Suchomel, Jason P Lake, Paul Comfort
Two reactive strength index (RSI) variants exist, the RSI and RSI modified (RSImod) which are typically calculated during the drop jump (DJ) and countermovement jump (CMJ), respectively. Both RSI variants have been used to monitor athletes' ability to complete stretch-shortening cycle actions quickly, but they have never been compared. The purpose of this study was to determine if they yield relatable information about reactive strength characteristics. Male professional rugby league players (n = 21, age = 20...
February 1, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29400616/repeated-sprint-training-in-hypoxia-induced-by-voluntary-hypoventilation-improves-running-repeated-sprint-ability-in-rugby-players
#11
Charly Fornasier-Santos, Grégoire P Millet, Xavier Woorons
PURPOSE: The goal of this study was to determine the effects of repeated-sprint training in hypoxia induced by voluntary hypoventilation at low lung volume (VHL) on running repeated-sprint ability (RSA) in team-sport players. METHODS: Twenty-one highly trained rugby players performed, over a 4-week period, seven sessions of repeated 40-m sprints either with VHL (RSH-VHL, n = 11) or with normal breathing (RSN, n = 10). Before (Pre-) and after training (Post-), performance was assessed with an RSA test (40-m all-out sprints with a departure every 30 s) until task failure (85% of the reference velocity assessed in an isolated sprint)...
February 5, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29389696/reliability-and-validity-of-a-medicine-ball-contained-accelerometer-for-measuring-upper-body-neuromuscular-performance
#12
Gregory Roe, William Shaw, Joshua Darrall-Jones, Padraic J Phibbs, Dale Read, Jonathon J Weakley, Kevin Till, Ben Jones
The aim of the study was to assess the between-day reliability and validity of a medicine ball contained-accelerometer (MBA) for assessing upper-body neuromuscular performance during a throwing task. Ten professional rugby union players partook in the study. Between-day reliability was assessed from the best score attained during 2 sets of 3 throws, on 2 testing occasions separated by 7 days. Validity was assessed against a criterion measure (Optioelectronic system) during 75 throws from a sub group of three participants...
January 30, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29388850/neurophysiological-and-cognitive-impairment-following-repeated-sports-concussion-injuries-in-retired-professional-rugby-league-players
#13
Alan J Pearce, Billymo Rist, Clare L Fraser, Adrian Cohen, Jerome J Maller
BACKGROUND: Concussion is regarded as a common injury in rugby league, however no studies have explored the long-term neurophysiological and cognitive effects of repeated concussion injuries in this sport. METHODS: Former professional rugby athletes (n = 25) were compared to 25 age-matched participants with no history of a concussion. All participants completed standardised motor dexterity, reaction time, and cognitive tasks for working memory, associative learning and rule acquisition and reversal...
February 1, 2018: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29373428/a-four-week-unstructured-break-improved-athletic-performance-in-collegiate-rugby-players
#14
C D Jensen, D Gleason, J M VanNess
This study analyzed the changes in athletic performance and anthropometric characteristics in collegiate male club rugby athletes (n=14) following a four-week winter break. All measurements were collected prior to and after the break. Body composition was assessed by body mass index and hydrostatic weighing. Performance measurements were: VO2 max, vertical jump, 10-yard sprint, squat max, and bench press max. Prior to testing, each subject was acclimated to the protocols to reduce learning effects. During the four-week break, no workouts were provided for the athletes; it was unsupervised and unstructured...
January 24, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29373205/a-20%C3%A3-20m-repeated-sprint-field-test-replicates-the-demands-of-wheelchair-rugby
#15
Cameron M Gee, Melissa A Lacroix, Christopher R West
OBJECTIVES: To assess the physiological responses to, and the agreement between, a 20×20m repeated sprint field test and wheelchair rugby game play, as well as the reliability of the test. DESIGN: Cross-sectional and longitudinal. METHODS: Heart rate (HR), blood lactate ([La-]B), and ratings of perceived exertion (RPE) were collected in nineteen elite wheelchair rugby athletes before, during, and after a 20×20m repeated sprint field test and game play...
December 16, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29364084/measured-and-perceived-indices-of-fluid-balance-in-professional-athletes-the-use-and-impact-of-hydration-assessment-strategies
#16
T D Love, D F Baker, P Healey, K E Black
BACKGROUND: To determine athletes perceived and measured indices of fluid balance during training and the influence of hydration strategy use on these parameters. METHODS: Thirty-three professional rugby union players completed a 120 minute training session in hot conditions (35°C, 40% relative humidity). Pre-training hydration status, sweat loss, fluid intake and changes in body mass (BM) were obtained. The use of hydration assessment techniques and players perceptions of fluid intake and sweat loss were obtained via a questionnaire...
January 24, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29363589/tackling-in-physical-education-rugby-an-unnecessary-risk
#17
Adam John White, John Batten, Stefan Robinson, Eric Anderson, Andrew Burns, Jo Batey, Helen Ryan-Stewart, Russell Discombe
No abstract text is available yet for this article.
January 23, 2018: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/29353321/energy-expenditure-of-rugby-players-during-a-14-day-in-season-period-measured-using-doubly-labelled-water
#18
Deborah R Smith, R F G J King, L C Duckworth, L Sutton, T Preston, J P O'Hara, B Jones
Criterion data for total energy expenditure (TEE) in elite rugby are lacking, which prediction equations may not reflect accurately. This study quantified TEE of 27 elite male rugby league (RL) and rugby union (RU) players (U16, U20, U24 age groups) during a 14-day in-season period using doubly labelled water (DLW). Measured TEE was also compared to estimated, using prediction equations. Resting metabolic rate (RMR) was measured using indirect calorimetry, and physical activity level (PAL) estimated (TEE:RMR)...
January 20, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29351956/what-counts-as-the-evidence-a-need-for-an-urgent-review-of-injury-risk-in-school-rugby
#19
EDITORIAL
Joe Piggin, Alan Bairner
No abstract text is available yet for this article.
January 19, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29350429/sprint-performance-and-propulsion-asymmetries-on-an-ergometer-in-trained-high-and-low-point-wheelchair-rugby-players
#20
Victoria L Goosey-Tolfrey, Riemer J K Vegter, Barry S Mason, Thomas A W Paulson, John P Lenton, Jan W van der Scheer, Lucas H V van der Woude
The purpose of this study was to examine the propulsion asymmetries of wheelchair athletes whilst sprinting on an instrumented, dual-roller ergometer system. Eighteen experienced wheelchair rugby players (8 low-point (LP) (class ≤1.5) and 10 high-point (HP) (class ≥2.0)) performed a 15s sprint in their sports wheelchair on the instrumented ergometer. Asymmetry was defined as the difference in distance and power output (PO) between left and right sides when the best side reached 28m. Propulsion techniques were quantified based on torque and velocity data...
January 19, 2018: Scandinavian Journal of Medicine & Science in Sports
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