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https://www.readbyqxmd.com/read/27900160/the-relationship-between-visual-function-and-performance-in-rifle-shooting-for-athletes-with-vision-impairment
#1
Joy Myint, Keziah Latham, David Mann, Phil Gomersall, Arnold J Wilkins, Peter M Allen
BACKGROUND: Paralympic sports provide opportunities for those who have an impairment that might otherwise be a barrier to participation in regular sporting competition. Rifle shooting represents an ideal sport for persons with vision impairment (VI) because the direction of the rifle can be guided by auditory information when vision is impaired. However, it is unknown whether those with some remaining vision when shooting with auditory guidance would be at an advantage when compared with those with no vision at all...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27877150/the-level-of-vision-necessary-for-competitive-performance-in-rifle-shooting-setting-the-standards-for-paralympic-shooting-with-vision-impairment
#2
Peter M Allen, Keziah Latham, David L Mann, Rianne H J C Ravensbergen, Joy Myint
The aim of this study was to investigate the level of vision impairment (VI) that would reduce performance in shooting; to guide development of entry criteria to visually impaired (VI) shooting. Nineteen international-level shooters without VI took part in the study. Participants shot an air rifle, while standing, toward a regulation target placed at the end of a 10 m shooting range. Cambridge simulation glasses were used to simulate six different levels of VI. Visual acuity (VA) and contrast sensitivity (CS) were assessed along with shooting performance in each of seven conditions of simulated impairment and compared to that with habitual vision...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27868480/revealing-the-decision-making-of-dribbling-in-the-sport-of-futsal
#3
Umberto Cesar Corrêa, Silvia Teixeira de Pinho, Silvia Letícia da Silva, Fabian Alberto Romero Clavijo, Thiago de Oliveira Souza, Go Tani
This study aimed to investigate why futsal players decide to dribble. For this purpose, we analysed 396 trials comprising the dribbles (n = 132), passes (n = 131) or shots (n = 133), performed by 70 male futsal players. Passing and shooting angles, and interpersonal distance, including their rates of change (velocity and variability), were regarded as measures of interpersonal coordination tendency and a comparison was made among dribbling, passing and shooting situations. In addition, the variables identified as constraints on deciding to dribble were analysed in relation to age categories, dribbling outcomes and futsal court zone...
November 21, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27812702/epidemiology-of-sports-related-eye-injuries-in-the-united-states
#4
R Sterling Haring, Isaac D Sheffield, Joseph K Canner, Eric B Schneider
Importance: Ocular trauma can lead to lifelong sequelae, and sports-related ocular injuries have been shown to disproportionately affect the young. Studies quantifying and characterizing the incidence and type of injuries seen with sports-related ocular trauma may be useful for resource utilization, training, and prevention efforts. Objective: To examine the emergency department (ED) burden of sports-related ocular trauma in the United States. Design, Setting, and Participants: This retrospective, cross-sectional study examined the Nationwide Emergency Department Sample, containing data from approximately 30 million ED visits annually at more than 900 hospitals nationwide, from January 1, 2010, to December 31, 2013, to determine factors associated with sports-related ocular trauma...
November 3, 2016: JAMA Ophthalmology
https://www.readbyqxmd.com/read/27744202/lead-and-pahs-contamination-of-an-old-shooting-range-a-case-study-with-a-holistic-approach
#5
A Rodríguez-Seijo, A Cachada, A Gavina, A C Duarte, F A Vega, M L Andrade, R Pereira
Soil pollution at firing ranges is an issue of growing importance, due to the accumulation in soils of contaminants derived from ammunition and clay targets. The concentration of Pb and PAHs was determined in five soils of an abandoned shooting range in Galicia (northwest Spain), and an ecotoxicological characterization was performed in order to obtain an assessment of risks. Therefore, the retention capacity of soils was assessed using test organisms of different trophic levels, and the role of soils as habitat for soil invertebrates was assessed by reproduction tests and bioaccumulation assays with earthworms...
October 13, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27736277/he-dies-he-scores-evidence-that-reminders-of-death-motivate-improved-performance-in-basketball
#6
Colin A Zestcott, Uri Lifshin, Peter Helm, Jeff Greenberg
This research applied insights from terror management theory (TMT; Greenberg, Pyszczynski, & Solomon, 1986) to the world of sport. According to TMT, self-esteem buffers against the potential for death anxiety. Because sport allows people to attain self-esteem, reminders of death may improve performance in sport. In Study 1, a mortality salience induction led to improved performance in a "one-on-one" basketball game. In Study 2, a subtle death prime led to higher scores on a basketball shooting task, which was associated with increased task related self-esteem...
October 13, 2016: Journal of Sport & Exercise Psychology
https://www.readbyqxmd.com/read/27710197/improved-children-s-motor-learning-of-the-basketball-free-shooting-pattern-by-associating-subjective-error-estimation-and-extrinsic-feedback
#7
Leandro de Carvalho da Silva, Carla Ferro Pereira-Monfredini, Luis Augusto Teixeira
This study aimed at assessing the interaction between subjective error estimation and frequency of extrinsic feedback in the learning of the basketball free shooting pattern by children. 10- to 12-year olds were assigned to 1 of 4 groups combining subjective error estimation and relative frequency of extrinsic feedback (33% × 100%). Analysis of performance was based on quality of movement pattern. Analysis showed superior learning of the group combining error estimation and 100% feedback frequency, both groups receiving feedback on 33% of trials achieved intermediate results, and the group combining no requirement of error estimation and 100% feedback frequency had the poorest learning...
October 6, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27309715/the-influence-of-the-trier-social-stress-test-on-free-throw-performance-in-basketball-an-interdisciplinary-study
#8
Nicolas Mascret, Jorge Ibáñez-Gijón, Vincent Bréjard, Martinus Buekers, Rémy Casanova, Tanguy Marqueste, Gilles Montagne, Guillaume Rao, Yannick Roux, François Cury
The aim of the present study was to explore the relationship between stress and sport performance in a controlled setting. The experimental protocol used to induce stress in a basketball free throw was the Trier Social Stress Test (TSST) and its control condition (Placebo-TSST). Participants (n = 19), novice basketball players but trained sportspersons, were exposed to two counterbalanced conditions in a crossover design. They were equipped with sensors to measure movement execution, while salivary cortisol and psychological state were also measured...
2016: PloS One
https://www.readbyqxmd.com/read/27254078/can-visual-illusions-be-used-to-facilitate-sport-skill-learning
#9
Rouwen Cañal-Bruland, Yor van der Meer, Jelle Moerman
Recently it has been reported that practicing putting with visual illusions that make the hole appear larger than it actually is leads to longer-lasting performance improvements. Interestingly, from a motor control and learning perspective, it may be possible to actually predict the opposite to occur, as facing a smaller appearing target should enforce performers to be more precise. To test this idea the authors invited participants to practice an aiming task (i.e., a marble-shooting task) with either a visual illusion that made the target appear larger or a visual illusion that made the target appear smaller...
September 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27180888/doping-control-analysis-of-46-polar-drugs-in-horse-plasma-and-urine-using-a-dilute-and-shoot-ultra-high-performance-liquid-chromatography-high-resolution-mass-spectrometry-approach
#10
Wai Him Kwok, Timmy L S Choi, Karen Y Kwok, George H M Chan, Jenny K Y Wong, Terence S M Wan
The high sensitivity of ultra high performance liquid chromatography coupled with high resolution mass spectrometry (UHPLC-HRMS) allows the identification of many prohibited substances without pre-concentration, leading to the development of simple and fast 'dilute-and-shoot' methods for doping control for human and equine sports. While the detection of polar drugs in plasma and urine is difficult using liquid-liquid or solid-phase extraction as these substances are poorly extracted, the 'dilute-and-shoot' approach is plausible...
June 17, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27172270/biomechanical-comparison-of-three-perceived-effort-set-shots-in-team-handball-players
#11
Hillary A Plummer, Sarah S Gascon, Gretchen D Oliver
Shoulder injuries are prevalent in the sport of team handball however no guidelines currently exist in the implementation of an interval throwing protocol for players returning from an upper extremity injury. These guidelines exist for the sport of baseball but team handball may present additional challenges due to greater ball mass that must be accounted for. The purpose of this study was to examine kinematic differences in the team handball set shot at 50%, 75%, and 100% effort which are common throwing intensities in throwing protocols...
May 9, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27108656/-fatal-head-injury-caused-by-a-crossbow-arrow-with-unusually-preserved-posttraumatic-volitional-activity-case-report
#12
Hynek Řehulka, Eva Čechová, Jitka Mottlová, Martin Valenta, Zdeněk Mareška
The authors deal with a case of suicidal attempt resulting in a fatal head injury. A young man shot himself with a serially produced mechanical sports crossbow. The young man with a critical intracranial injury, a penetration, was nevertheless capable of basic locomotive activity, as well as of coherent communication with another people present at the scene. The critically injured patient was transported from the scene directly to medical centre where he subsequently underwent a neurologic surgery. On the eight day after the incident he died in the hospital as a result of sustained wounds...
2016: Soudní Lékarství
https://www.readbyqxmd.com/read/27042167/critical-evaluation-of-food-intake-and-energy-balance-in-young-modern-pentathlon-athletes-a-cross-sectional-study
#13
Leticia Azen Alves Coutinho, Cristiana Pedrosa Melo Porto, Anna Paola Trindade Rocha Pierucci
BACKGROUND: Modern pentathlon comprises five sports: fencing, swimming, equestrian jumping, and a combined event of pistol shooting and running. Despite the expected high energy demand of this sport, there are few studies that provide support for the nutritional recommendations for pentathletes. The purpose of the present study was to evaluate young modern pentathlon athletes with respect to body composition, biochemical profile, and consumption of food and supplements. METHODS: Fifty-six young modern pentathletes aged 13...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27019316/a-scale-based-approach-to-interdisciplinary-research-and-expertise-in-sports
#14
Jorge Ibáñez-Gijón, Martinus Buekers, Antoine Morice, Guillaume Rao, Nicolas Mascret, Jérome Laurin, Gilles Montagne
After more than 20 years since the introduction of ecological and dynamical approaches in sports research, their promising opportunity for interdisciplinary research has not been fulfilled yet. The complexity of the research process and the theoretical and empirical difficulties associated with an integrated ecological-dynamical approach have been the major factors hindering the generalisation of interdisciplinary projects in sports sciences. To facilitate this generalisation, we integrate the major concepts from the ecological and dynamical approaches to study behaviour as a multi-scale process...
March 28, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/26999506/return-to-play-after-treatment-of-shoulder-labral-tears-in-professional-hockey-players
#15
Ashwin Rangavajjula, Adam Hyatt, Eli Raneses, Jim McCrossin, Steven Cohen, Peter DeLuca
OBJECTIVES: Shoulder labral injuries in professional hockey players are often treated surgically to minimize missed ice time. Previous studies have shown that post-operative outcomes in these players are favorable, although they have not specifically focused on athletic performance and time to return to sport. Our objective was to report time to return to play and post-operative on-ice performance metrics after shoulder labral repair in professional ice hockey players. METHODS: We performed a retrospective review of the clinical records of all professional hockey players (NHL) who underwent arthroscopic shoulder labral repair by one surgeon between January 2004 and December 2008...
2016: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/26957940/investigating-the-contextual-interference-effect-using-combination-sports-skills-in-open-and-closed-skill-environments
#16
Jadeera P G Cheong, Brendan Lay, Rizal Razman
This study attempted to present conditions that were closer to the real-world setting of team sports. The primary purpose was to examine the effects of blocked, random and game-based training practice schedules on the learning of the field hockey trap, close dribble and push pass that were practiced in combination. The secondary purpose was to investigate the effects of predictability of the environment on the learning of field hockey sport skills according to different practice schedules. A game-based training protocol represented a form of random practice in an unstable environment and was compared against a blocked and a traditional random practice schedule...
March 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/26892028/back-pain-prevalence-in-adolescent-athletes
#17
J Müller, S Müller, J Stoll, K Fröhlich, C Otto, F Mayer
The research aimed to investigate back pain (BP) prevalence in a large cohort of young athletes with respect to age, gender, and sport discipline. BP (within the last 7 days) was assessed with a face scale (face 1-2 = no pain; face 3-5 = pain) in 2116 athletes (m/f 61%/39%; 13.3 ± 1.7 years; 163.0 ± 11.8 cm; 52.6 ± 13.9 kg; 4.9 ± 2.7 training years; 8.4 ± 5.7 training h/week). Four different sports categories were devised (a: combat sports, b: game sports; c: explosive strength sport; d: endurance sport)...
February 19, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/26839612/effect-of-kinesiotape-applications-on-ball-velocity-and-accuracy-in-amateur-soccer-and-handball
#18
Carsten Müller, Mirko Brandes
Evidence supporting performance enhancing effects of kinesiotape in sports is missing. The aims of this study were to evaluate effects of kinesiotape applications with regard to shooting and throwing performance in 26 amateur soccer and 32 handball players, and to further investigate if these effects were influenced by the players' level of performance. Ball speed as the primary outcome and accuracy of soccer kicks and handball throws were analyzed with and without kinesiotape by means of radar units and video recordings...
December 22, 2015: Journal of Human Kinetics
https://www.readbyqxmd.com/read/26823452/prevalence-of-cam-type-morphology-in-elite-ice-hockey-players
#19
Frantz Lerebours, William Robertson, Brian Neri, Brian Schulz, Thomas Youm, Orr Limpisvasti
BACKGROUND: Femoroacetabular impingement (FAI) has been increasingly recognized as a cause of hip pain in athletes at all levels of competition, specifically ice hockey players. PURPOSE/HYPOTHESIS: The purpose of this study was to define the prevalence of cam and pincer radiographic deformity in elite ice hockey players. The hypothesis was that elite hockey players will have a higher prevalence of radiographic hip abnormalities compared with the general population...
April 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/26715237/shooting-motion-in-high-school-collegiate-and-professional-men-s-lacrosse-players
#20
Heather K Vincent, Cong Chen, Laura A Zdziarski, Jonathan Montes, Kevin R Vincent
The purposes of this research were to quantify the kinematics of the lacrosse shot, based on arm dominance and player experience level. Male players (N = 39; 14-30 years; high school [n = 24], collegiate [n = 9], professional [n = 6]), performed overhead shots using dominant and non-dominant sides. Motion was captured using a high-speed, 12-camera optical system and high-speed filming. Body segment rotational velocities and joint angles were determined at key points in the shot cycle from foot contact (0% of shot) to ball release (100% of shot)...
2015: Sports Biomechanics
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