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https://www.readbyqxmd.com/read/28650793/a-systematic-review-of-the-technology-based-assessment-of-visual-perception-and-exploration-behaviour-in-association-football
#1
Thomas B McGuckian, Michael H Cole, Gert-Jan Pepping
To visually perceive opportunities for action, athletes rely on the movements of their eyes, head and body to explore their surrounding environment. To date, the specific types of technology and their efficacy for assessing the exploration behaviours of association footballers have not been systematically reviewed. This review aimed to synthesise the visual perception and exploration behaviours of footballers according to the task constraints, action requirements of the experimental task, and level of expertise of the athlete, in the context of the technology used to quantify the visual perception and exploration behaviours of footballers...
June 26, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28646098/head-injuries-in-professional-male-football-soccer-over-13-years-29-lower-incidence-rates-after-a-rule-change-red-card
#2
Florian Beaudouin, Karen Aus der Fünten, Tobias Tröß, Claus Reinsberger, Tim Meyer
BACKGROUND: Absolute numbers of head injuries in football (soccer) are considerable because of its high popularity and the large number of players. In 2006 a rule was changed to reduce head injuries. Players were given a red card (sent off) for intentional elbow-head contact. AIMS: To describe the head injury mechanism and examine the effect of the rule change. METHODS: Based on continuously recorded data from the German football magazine "kicker", a database of all head injuries in the 1(st) German Male Bundesliga was generated comprising seasons 2000/01-2012/13...
June 23, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28640769/physiological-profile-and-activity-pattern-of-minor-gaelic-football-players
#3
Bryan D Cullen, Mark T Roantree, Andrew L McCarren, David T Kelly, Paul L OʼConnor, Sarah M Hughes, Pat G Daly, Niall M Moyna
Cullen, BD, Roantree, M, McCarren, A, Kelly, DT, O'Connor, PL, Hughes, SM, Daly, PG, and Moyna1, NM. Physiological profile and activity pattern of minor Gaelic football players. J Strength Cond Res 31(7): 1811-1820, 2017-The purpose of this study was to evaluate the physiological profile and activity pattern in club- and county-level under-18 (U-18) Gaelic football players relative to playing position. Participants (n = 85) were analyzed during 17 official 15-a-side matches using global positioning system technology (SPI Pro X II; GPSports Systems, Canberra, Australia) and heart rate (HR) telemetry...
July 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28634456/absolute-and-relative-training-load-and-its-relation-to-fatigue-in-football
#4
Unai Zurutuza, Julen Castellano, Ibon Echeazarra, David Casamichana
The aim of the study was to assess the relationship of external and internal training load (TL) indicators with the objective and subjective fatigue experienced by 15 semi-professional football players, over eight complete weeks of the competition period in the 2015-2016 season, which covered microcycles from 34th to 41st. The maximum heart rate (HRmax) and maximum speed (Vmax) of all the players were previously measured in specific tests. The TL was monitored via questionnaires on rating of perceived exertion (RPE), pulsometers and GPS devices, registering the variables: total distance (TD), player load 2D (PL2D), TD at >80% of the Vmax (TD80), TD in deceleration at < -2 m⋅sec-2 (TDD <-2), TD in acceleration >2 m⋅sec(-2) (TDA >2), Edwards (ED), time spent at between 50 and 80% (50-80% HRmax), 80-90% (80-90% HRmax), and >90% of the HRmax (>90% HRmax), and RPE both respiratory/thoracic (RPEres) and leg/muscular (RPEmus)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28632050/effects-of-turf-and-cleat-footwear-on-plantar-load-distributions-in-adolescent-american-football-players-during-resisted-pushing
#5
Jeffrey B Taylor, Anh-Dung Nguyen, Janet R Griffin, Kevin R Ford
Metatarsal and midfoot injuries are common in American football. Footwear design may influence injury rates by altering plantar foot loading patterns in these regions. The purpose of this study was to determine the effect of cleat design on in-shoe plantar foot loading during a football-specific, resisted pushing task. Twenty competitive football players (age 14.7 ± 1.8 years, height 1.72 ± 0.10 m, and mass 71.8 ± 26.9 kg) completed three trials of pushing a weighted sled at maximal effort in a standard shoe (CLEAT) and artificial turf-specific shoe (TURF), with flexible in-shoe force measuring insoles...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28593090/dynamic-hip-adduction-abduction-and-abdominal-exercises-from-the-holmich-groin-injury-prevention-program-are-intense-enough-to-be-considered-strengthening-exercises-a-cross-sectional-study
#6
Kasper Krommes, Thomas Bandholm, Markus D Jakobsen, Lars L Andersen, Andreas Serner, Per Hölmich, Kristian Thorborg
BACKGROUND: Training intensity is an important variable in strength training and above 80% of one repetition maximum is recommended for promoting strength for athletes. Four dynamic and two isometric on-field exercises are included in the Hölmich groin-injury prevention study that initially failed to show a reduction in groin injuries in soccer players. It has been speculated that exercise-intensity in this groin-injury prevention program was too low to induce the strength gains necessary to protect against groin-related injuries...
June 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28539858/relationship-between-proxies-for-type-ii-fiber-type-and-resting-blood-pressure-in-division-i-american-football-athletes
#7
Christopher A DiCesare, James R Adams, Randal P Claytor, Rose M Ward, Ronald H Cox
OBJECTIVE: The risk for cardiovascular disease is well-documented. Perhaps surprisingly, specific athletic populations, including American football players, exhibit increased risk for cardiovascular disease as presented by elevated blood pressure. There is evidence suggesting a link between muscle fiber type distribution and resting blood pressure. Acknowledging this association, it becomes important to clarify an individual's risk for developing cardiovascular disease later in adulthood...
April 2017: International Journal of Health Sciences
https://www.readbyqxmd.com/read/28512188/the-functional-movement-test-9-is-a-poor-screening-test-for-lower-extremity-injuries-in-professional-male-football-players-a-2-year-prospective-cohort-study
#8
Arnhild Bakken, Stephen Targett, Tone Bere, Cristiano Eirale, Abdulaziz Farooq, Johannes L Tol, Rod Whiteley, Karim M Khan, Roald Bahr
BACKGROUND: The 9+ screening battery test consists of 11 tests to assess limitations in functional movement. AIM: To examine the association of the 9+ with lower extremity injuries and to identify a cut-off point to predict injury risk. METHODS: Professional male football players in Qatar from 14 teams completed the 9+ at the beginning of the 2013/2014 and 2014/2015 seasons. Time-loss injuries and exposure in training and matches were registered prospectively by club medical staff during these seasons...
May 16, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28510477/performance-based-outcomes-after-anterior-cruciate-ligament-reconstruction-in-professional-athletes-differ-between-sports
#9
Harry T Mai, Danielle S Chun, Andrew D Schneider, Brandon J Erickson, Ryan D Freshman, Benjamin Kester, Nikhil N Verma, Wellington K Hsu
BACKGROUND: Excellent outcomes have been reported for anterior cruciate ligament (ACL) reconstruction (ACLR) in professional athletes in a number of different sports. However, no study has directly compared these outcomes between sports. PURPOSE: To determine if differences in performance-based outcomes exist after ACLR between professional athletes of each sport. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: National Football League (NFL), National Basketball Association (NBA), National Hockey League (NHL), and Major League Baseball (MLB) athletes undergoing primary ACLR for an acute rupture were identified through an established protocol of injury reports and public archives...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28508338/fluid-balance-in-team-sport-athletes-and-the-effect-of-hypohydration-on-cognitive-technical-and-physical-performance
#10
REVIEW
Ryan P Nuccio, Kelly A Barnes, James M Carter, Lindsay B Baker
Sweat losses in team sports can be significant due to repeated bursts of high-intensity activity, as well as the large body size of athletes, equipment and uniform requirements, and environmental heat stress often present during training and competition. In this paper we aimed to: (1) describe sweat losses and fluid balance changes reported in team sport athletes, (2) review the literature assessing the impact of hypohydration on cognitive, technical, and physical performance in sports-specific studies, (3) briefly review the potential mechanisms by which hypohydration may impact team sport performance, and (4) discuss considerations for future directions...
May 15, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28503911/community-football-teams-for-people-with-intellectual-disabilities-in-secure-settings-they-take-you-off-the-ward-it-was-like-a-nice-day-and-then-you-get-like-medals-at-the-end
#11
Nicholas Andrew Hudson, Jennifer Hella Mrozik, Rose White, Kristian Northend, Steve Moore, Katherine Lister, Kelly Rayner
BACKGROUND: People with learning disabilities (LD) are particularly vulnerable to mental health and behavioural difficulties, and it has been shown that regular exercise can improve psychosocial well-being as well as physical fitness. This research aims to explore the experiences of men with LD detained in secure settings who have engaged in community football training programmes and identify the benefits of such provision. METHOD: Interviews were conducted with eight patients in a forensic LD service, discussing their experiences of participating in community football...
May 15, 2017: Journal of Applied Research in Intellectual Disabilities: JARID
https://www.readbyqxmd.com/read/28500358/injury-prediction-and-vulnerability-assessment-using-strain-and-susceptibility-measures-of-the-deep-white-matter
#12
Wei Zhao, Yunliang Cai, Zhigang Li, Songbai Ji
Reliable prediction and diagnosis of concussion is important for its effective clinical management. Previous model-based studies largely employ peak responses from a single element in a pre-selected anatomical region of interest (ROI) and utilize a single training dataset for injury prediction. A more systematic and rigorous approach is necessary to scrutinize the entire white matter (WM) ROIs as well as ROI-constrained neural tracts. To this end, we evaluated injury prediction performances of the 50 deep WM regions using predictor variables based on strains obtained from simulating the 58 reconstructed American National Football League head impacts...
May 12, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28491886/the-effect-of-the-number-of-carries-among-college-running-backs-on-future-injury-risk-and-performance-in-the-national-football-league
#13
Matthew J Kraeutler, John W Belk, Eric C McCarty
BACKGROUND: There has been speculation that running backs with an excessive number of carries in college are less likely to be successful in the National Football League (NFL). PURPOSE: To determine whether there is a correlation between number of carries by college running backs and future performance and injury risk in the NFL. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Using the ESPN archives of National Collegiate Athletic Association and NFL running backs, the following inclusion criteria were used: running backs who played their last college season from 1999 through 2012 and who were drafted in the first 4 rounds of the NFL draft following their college career...
April 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28490228/concussion-mechanisms-and-activities-in-youth-high-school-and-college-football
#14
Robert C Lynall, Kody R Campbell, Erin B Wasserman, Thomas P Dompier, Zack Kerr
Our purpose was to determine concussion mechanism and activity differences between 3 cohorts of football players; youth, high school, and college. Participants in this prospective cohort study included youth (ages 5-14, 118 teams, 310 team-seasons), high school (96 teams, 184 team-seasons), and college (34 teams, 71 team-seasons) football players. Athletic trainers collected athlete-exposure (AE) and concussion data during the 2012-2014 seasons. Injury mechanism referred to the object that made contact with the concussed player, resulting in the concussion...
May 10, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28476439/misunderstandings-of-concussion-within-a-youth-rugby-population
#15
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/28475550/duration-specific-running-performance-in-elite-gaelic-football
#16
Shane Malone, Barry Solan, Brian Hughes, Kieran Collins
The aim of the current investigation was to determine the position and duration specific running performance of elite Gaelic football players through the use of a moving average method. Global positioning system data (4-Hz, VX Sport, New-Zealand) were collected from thirty-five (n = 35) elite Gaelic football players across a two season period. A total of 32 competitive matches were analysed with 300 full match play data samples obtained for final analysis. Players were categorised based on positional groups; full-back, half-back, midfield, half- forward and full-forward...
April 25, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28474965/the-effect-of-subcritical-bone-loss-and-exposure-on-recurrent-instability-after-arthroscopic-bankart-repair-in-intercollegiate-american-football
#17
Jonathan F Dickens, Brett D Owens, Kenneth L Cameron, Thomas M DeBerardino, Brendan D Masini, Karen Y Peck, Steven J Svoboda
BACKGROUND: There is no consensus on the optimal method of stabilization (arthroscopic or open) in collision athletes with anterior shoulder instability. PURPOSE: To examine the effect of "subcritical" bone loss and football-specific exposure on the rate of recurrent shoulder instability after arthroscopic stabilization in an intercollegiate American football population. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: Fifty intercollegiate football players underwent primary arthroscopic stabilization for anterior shoulder instability and returned to football for at least a single season...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28473308/sa%C3%A3%C2%BAde-na-copa-the-world-s-first-application-of-participatory-surveillance-for-a-mass-gathering-at-fifa-world-cup-2014-brazil
#18
Onicio Leal Neto, George Santiago Dimech, Marlo Libel, Wayner Vieira de Souza, Eduarda Cesse, Mark Smolinski, Wanderson Oliveira, Jones Albuquerque
BACKGROUND: The 2005 International Health Regulations (IHRs) established parameters for event assessments and notifications that may constitute public health emergencies of international concern. These requirements and parameters opened up space for the use of nonofficial mechanisms (such as websites, blogs, and social networks) and technological improvements of communication that can streamline the detection, monitoring, and response to health problems, and thus reduce damage caused by these problems...
May 4, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28471243/utility-of-providing-a-concussion-definition-in-the-assessment-of-concussion-history-in-former-nfl-players
#19
Michael L Alosco, Johnny Jarnagin, Yorghos Tripodis, Brett Martin, Christine Chaisson, Christine M Baugh, Alcy Torres, Christopher J Nowinski, Robert C Cantu, Robert A Stern
OBJECTIVE: Former National Football League (NFL) players' working knowledge of concussion has not yet been evaluated, despite this population being a major clinical research target due to the association between repetitive head impacts (RHI) and long-term clinical impairments. This study examined former NFL players' understanding of the current concussion definition, and the association between number of concussions with clinical function. METHODS: 95 former NFL players (mean age = 55...
May 4, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28423285/the-epidemiology-of-high-ankle-sprains-in-national-collegiate-athletic-association-sports
#20
Timothy C Mauntel, Erik A Wikstrom, Karen G Roos, Aristarque Djoko, Thomas P Dompier, Zachary Y Kerr
BACKGROUND: Ankle sprains are among the most common injuries experienced by collegiate athletes. The type of ankle sprain is rarely differentiated in epidemiological studies. This differentiation is necessary, as each ankle sprain type has a unique injury mechanism and recovery period. High ankle sprains commonly result in long recovery periods. Thus, a further examination of the epidemiology of high ankle sprains is warranted. PURPOSE: To describe the epidemiology of high ankle sprains in National Collegiate Athletic Association (NCAA) sports during the 2009/2010-2014/2015 academic years...
April 1, 2017: American Journal of Sports Medicine
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