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https://www.readbyqxmd.com/read/29028445/return-to-sport-specific-performance-after-primary-anterior-cruciate-ligament-reconstruction-a-systematic-review
#1
Nicholas G Mohtadi, Denise S Chan
BACKGROUND: Physicians counseling athletes on the prognosis of sport-specific performance outcomes after anterior cruciate ligament reconstruction (ACLR) depend on the published literature. However, critical appraisal of the validity and biases in these studies is required to understand how ACLR affects an athlete's ability to return to sport, the athlete's sport-specific performance, and his or her ability to achieve preinjury levels of performance. PURPOSE: This review identifies the published prognostic studies evaluating sport-specific performance outcomes after ACLR...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29024605/hip-and-ankle-kinematics-in-noncontact-anterior-cruciate-ligament-injury-situations-video-analysis-using-model-based-image-matching
#2
Hideyuki Koga, Atsuo Nakamae, Yosuke Shima, Roald Bahr, Tron Krosshaug
BACKGROUND: Detailed kinematic descriptions of real anterior cruciate ligament (ACL) injury situations are limited to the knee only. PURPOSE: To describe hip and ankle kinematics as well as foot position relative to the center of mass (COM) in ACL injury situations through use of a model-based image-matching (MBIM) technique. The distance between the projection of the COM on the ground and the base of support (BOS) (COM_BOS) normalized to the femur length was also evaluated...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29024156/relationships-between-the-second-to-fourth-digit-ratio-2d-4d-and-game-related-statistics-in-semi-professional-female-basketball-players
#3
Makailah Dyer, Sandra E Short, Martin Short, John T Manning, Grant R Tomkinson
OBJECTIVE: Digit ratio (2D:4D) is a negative correlate of sports performance, although this relationship may be weak in open-skill sports such as basketball. The primary aim was to quantify relationships between 2D:4D and game-related statistics in semi-professional female basketball players. The secondary aim was to quantify the differences in mean 2D:4Ds between players based on their position in the starting lineup. METHODS: Using a cross-sectional design, 64 female basketball players who competed in the South Australian Premier League were measured in-season for height, mass, and 2D:4D, with game-related statistics collected end-season...
October 12, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/29023327/sodium-bicarbonate-supplementation-delays-neuromuscular-fatigue-without-changes-in-performance-outcomes-during-a-basketball-match-simulation-protocol
#4
Paul Ansdell, Jeanne Dekerle
PURPOSE: To investigate the development of neuromuscular fatigue during a basketball game simulation and ascertain whether sodium bicarbonate (NaHCO3) supplementation attenuates any neuromuscular fatigue that persists. METHODS: Ten participants ingested 0.2 g.kg of NaHCO3 (or an equimolar placebo dosage of sodium chloride [NaCl]) 90 and 60 minutes prior to commencing a basketball game simulation (ALK-T vs PLA-T). Isometric maximal voluntary contractions of the knee extensors (MVIC) and potentiated high (100 Hz) and low (10 Hz) frequency doublet twitches were recorded before and after each match quarter for both trials...
October 10, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28989954/inattentional-blindness-for-a-gun-during-a-simulated-police-vehicle-stop
#5
Daniel J Simons, Michael D Schlosser
People often fail to notice unexpected objects and events when they are focusing attention on something else. Most studies of this "inattentional blindness" use unexpected objects that are irrelevant to the primary task and to the participant (e.g., gorillas in basketball games or colored shapes in computerized tracking tasks). Although a few studies have examined noticing rates for personally relevant or task-relevant unexpected objects, few have done so in a real-world context with objects that represent a direct threat to the participant...
2017: Cognitive Research: Principles and Implications
https://www.readbyqxmd.com/read/28985697/characterization-of-prepractice-injury-prevention-exercises-of-high-school-athletic-teams
#6
James R Slauterbeck, Autumn Reilly, Pamela M Vacek, Rebecca Choquette, Timothy W Tourville, Bert Mandelbaum, Robert J Johnson, Bruce D Beynnon
BACKGROUND: Static and dynamic exercises are performed before activity to decrease injury risk and increase performance. Although evidence supports using dynamic over static stretching and performing Fédération Internationale de Football Association (FIFA) 11+ as a dynamic prepractice routine, we do not know the frequency at which these exercises are utilized in high school populations. HYPOTHESIS: We hypothesize that there is a wide variety of preparticipation exercises performed by high school athletes, and that few high school teams perform FIFA 11+ as an injury prevention program in its entirety...
October 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28985093/effects-of-offense-defense-and-ball-possession-on-mobility-performance-in-wheelchair-basketball
#7
Annemarie M H de Witte, Monique A M Berger, Marco J M Hoozemans, Dirkjan H E J Veeger, Lucas H V van der Woude
The aim of this study was to determine to what extent mobility performance is influenced by offensive or defensive situations and ball possession and to what extent these actions are different for the field positions. From video analysis, the relative duration of the various wheelchair movements during team offense/defense and individual ball possession was compared in 56 elite wheelchair basketball players. A two-way analysis of variance indicated that during offense, the guards and forwards performed longer driving forward than during defense...
October 6, 2017: Adapted Physical Activity Quarterly: APAQ
https://www.readbyqxmd.com/read/28977818/malt-beverage-brand-popularity-among-youth-and-youth-appealing-advertising-content
#8
Ziming Xuan, William DeJong, Michael Siegel, Thomas F Babor
BACKGROUND: This study examined whether alcohol brands more popular among youth are more likely to have aired television advertisements that violated the alcohol industry's voluntary code by including youth-appealing content. METHODS: We obtained a complete list of 288 brand-specific beer advertisements broadcast during the National Collegiate Athletic Association (NCAA) men's and women's basketball tournaments from 1999 to 2008. All ads were rated by a panel of health professionals using a modified Delphi method to assess the presence of youth-appealing content in violation of the alcohol industry's voluntary code...
October 4, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28969821/editorial-commentary-increased-risk-of-second-ruptures-and-poorer-outcomes-after-anterior-cruciate-ligament-injury-and-reconstruction-in-hypermobile-athletes-a-potential-synergism-of-passive-ligamentous-and-active-muscular-control-of-dynamic-knee-stability
#9
EDITORIAL
Timothy E Hewett
Graft failure rates were higher and inferior subjective outcomes were observed after anterior cruciate ligament reconstruction in patients with generalized hypermobility. This is a clear and corroborative finding that is highly consilient with other reports of similar studies from the published literature. However, controversy remains regarding other potentially predictive and confounding variables. For example, age, activity level, sex, and dynamic neuromuscular control were not considered in this interesting, important, and potentially impactful study...
October 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28968418/do-big-guys-really-die-younger-an-examination-of-height-and-lifespan-in-former-professional-basketball-players
#10
Srdjan Lemez, Nick Wattie, Joseph Baker
While factors such as genetics may mediate the relationship between height and mortality, evidence suggests that larger body size may be an important risk indicator of reduced lifespan longevity in particular. This study critically examined this relationship in professional basketball players. We examined living and deceased players who have played in the National Basketball Association (debut between 1946-2010) and/or the American Basketball Association (1967-1976) using descriptive and Kaplan-Meier and Cox regression analyses...
2017: PloS One
https://www.readbyqxmd.com/read/28965347/construct-validity-of-accelerometry-derived-force-to-quantify-basketball-movement-patterns
#11
Craig Staunton, Daniel Wundersitz, Brett Gordon, Michael Kingsley
This study assessed the construct validity of accelerometry-derived net force to quantify the external demands of basketball movements. Twenty-eight basketballers completed the Yo-Yo intermittent recovery test (Yo-Yo-IR1) and basketball exercise simulation test (BEST). Intensity was quantified using accelerometry-derived average net force (AvFNet) and PlayerLoad(TM) per minute (PL/min). Within-player correlations were determined between intensity and running speed during Yo-Yo-IR1. Measured AvFNet was determined for movements during the BEST and predicted AvFNet was calculated using movement speed and correlations from Yo-Yo-IR1...
October 1, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28963129/trapped-sweat-in-basketball-uniforms-and-the-effect-on-sweat-loss-estimates
#12
Lindsay B Baker, Adam J Reimel, Bridget C Sopeña, Kelly A Barnes, Ryan P Nuccio, Peter John D De Chavez, John R Stofan, James M Carter
The aims of this study were to determine: (1) trapped sweat (TS) in basketball uniforms and the effect on sweat loss (SL) estimates during a laboratory-based basketball simulation protocol; (2) the impact of exercise intensity, body mass, age, and SL on TS; and (3) TS during on-court training to assess the ecological validity of the laboratory-based results. Twenty-four recreational/competitive male basketball players (23 ± 10 years, 77.0 ± 16.7 kg) completed three randomized laboratory-based trials (Low, Moderate, and High intensity) consisting of 150-min intermittent exercise...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28945690/epidemiology-of-anterior-tibial-spine-fractures-in-young-patients-a-retrospective-cohort-study-of-122-cases
#13
Derek P Axibal, Justin J Mitchell, Meredith H Mayo, Jorge Chahla, Chase S Dean, Claire E Palmer, Kristen Campbell, Armando F Vidal, Jason T Rhodes
BACKGROUND: Historically, bicycle accidents were described as the most common mechanism for pediatric anterior tibial spine fractures (ATSFs). There is a paucity of current literature examining the demographic factors associated with these injuries. The purpose of this cohort study was to characterize the epidemiology of ATSFs presenting to a single tertiary referral pediatric hospital. METHODS: A consecutive cohort of 122 pediatric patients with ATSFs between 1996 and 2014 were reviewed...
September 22, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28937802/epidemiology-of-stress-fractures-in-collegiate-student-athletes-2004-2005-through-2013-2014-academic-years
#14
Katherine H Rizzone, Kathryn E Ackerman, Karen G Roos, Thomas P Dompier, Zachary Y Kerr
CONTEXT:   Stress fractures are injuries caused by cumulative, repetitive stress that leads to abnormal bone remodeling. Specific populations, including female athletes and endurance athletes, are at higher risk than the general athletic population. Whereas more than 460 000 individuals participate in collegiate athletics in the United States, no large study has been conducted to determine the incidence of stress fractures in collegiate athletes. OBJECTIVE:   To assess the incidence of stress fractures in National Collegiate Athletic Association (NCAA) athletes and investigate rates and patterns overall and by sport...
September 22, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28931975/correlation-between-sleep-and-psychological-mood-states-in-female-wheelchair-basketball-players-on-a-japanese-national-team
#15
Kenji Tsunoda, Hirotaka Mutsuzaki, Kazushi Hotta, Yukiyo Shimizu, Naruki Kitano, Yasuyoshi Wadano
[Purpose] Although some studies suggest the importance of getting adequate sleep for enhancing mood, there is not yet sufficient evidence on the relationship between sleep and mood states in athletes, especially for athletes with physical disability. The purpose of this study is to reveal relationships between sleep and psychological mood states in female wheelchair basketball players. [Subjects and Methods] Seventeen female wheelchair basketball players (30.9 ± 9.4 years old) on a Japanese national team participated...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28930877/the-impact-of-exercise-induced-muscle-damage-on-performance-test-outcomes-in-elite-female-basketball-players
#16
Kenji Doma, Anthony Leicht, Wade Sinclair, Moritz Schumann, Felipe Damas, Dean Burt, Carl Woods
The purpose of this study was two-fold. First, to examine the impact exercise-induced muscle damage (EIMD) on physical fitness qualities following a basketball-specific training session. Secondly, to determine the reproducibility of the sport-specific performance measures in elite female basketball players. Ten elite female basketball players (age 25.6 ± 4.5 years; height 1.8 ± 0.7m; body mass 76.7 ± 8.3kg) undertook a 90-minute training session involving repeated jumping, sprinting and game-simulated training...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28927725/sex-differences-in-sport-related-concussion-long-term-outcomes
#17
Tracey Covassin, Jennifer L Savage, Abigail C Bretzin, Meghan E Fox
Approximately 1.6 to 3.8 million recreational and sports-related concussions (SRC) occur each year in the Unites States. Research suggest that female athletes are at a greater risk for a SRC compared to male athletes competing in comparable sports (i.e., soccer, basketball). Moreover, female athletes have reported more total symptoms and greater neurocognitive impairments following a SRC. Female athletes have been found to report greater symptom provocation as measured by the Vestibular/Ocular Motor Screening (VOMS), and increased brain activation compared to males...
September 18, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28925969/caffeine-improves-basketball-performance-in-experienced-basketball-players
#18
Carlos Puente, Javier Abián-Vicén, Juan José Salinero, Beatriz Lara, Francisco Areces, Juan Del Coso
The aim of this study was to determine the effect of caffeine intake on overall basketball performance in experienced players. A double-blind, placebo-controlled, randomized experimental design was used for this investigation. In two different sessions separated by one week, 20 experienced basketball players ingested 3 mg of caffeine/kg of body mass or a placebo. After 60 min, participants performed 10 repetitions of the following sequence: Abalakov jump, Change-of-Direction and Acceleration Test (CODAT) and two free throws...
September 19, 2017: Nutrients
https://www.readbyqxmd.com/read/28918391/genetic-polymorphisms-associated-with-the-risk-of-concussion-in-1056-college-athletes-a-multicentre-prospective-cohort-study
#19
Thomas Roland Terrell, Ruth Abramson, Jeffery T Barth, Ellen Bennett, Robert C Cantu, Richard Sloane, Daniel T Laskowitz, David M Erlanger, Douglas McKeag, Gregory Nichols, Verle Valentine, Leslie Galloway
BACKGROUND/AIM: To evaluate the association of genetic polymorphisms APOE, APOE G-219T promoter, microtubule associated protein(MAPT)/tau exon 6 Ser(53)Pro, MAPT/tau Hist(47)Tyr, IL-6572 G/C and IL-6R(Asp)358(Ala) with the risk of concussion in college athletes. METHODS: A 23-centre prospective cohort study of 1056 college athletes with genotyping was completed between August 2003 and December 2012. All athletes completed baseline medical and concussion questionnaires, and post-concussion data were collected for athletes with a documented concussion...
September 16, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28915360/risk-factors-for-reoperation-and-performance-based-outcomes-after-operative-fixation-of-foot-fractures-in-the-professional-athlete-a-cross-sport-analysis
#20
Sameer Singh, Kevin Larkin, Anish Kadakia, Wellington Hsu
BACKGROUND: Professional athletes are predisposed to fractures of the foot due to large stresses placed on the lower extremity. These players are concerned with efficiently returning to play at a high level. Return-to-play rates after operative treatment have been previously reported, yet performance outcomes after such treatment are generally unknown in this population. HYPOTHESIS: Overall, professional athletes sustaining a foot fracture would return to play at high rates with little impact on post-operative performance or league participation...
September 1, 2017: Sports Health
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