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https://www.readbyqxmd.com/read/27903163/ultrasound-imaging-of-ulnar-collateral-ligament-injury
#1
Arie J van Duijn, Shawn D Felton
The patient was an 18-year-old collegiate baseball pitcher who injured his right throwing elbow during an overhead slider pitch. As a part of a study, preinjury ultrasound images of the throwing arm were obtained 2 weeks prior to the injury. One day postinjury, repeat ultrasound imaging of the medial elbow was performed. The attending team physician ordered a magnetic resonance arthrogram 2 days after injury, which confirmed the presence of a complete tear of the ulnar collateral ligament. J Orthop Sports Phys Ther 2016;46(12):1086...
December 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27900183/severity-and-pattern-of-injuries-caused-by-the-traditional-swiss-team-sport-hornussen-first-retrospective-study-at-a-level-i-trauma-centre-in-switzerland
#2
Volkmar Waterkamp, Meret Ricklin, Benoît Schaller, Konstantinos Katsoulis, Aristomenis Exadaktylos
BACKGROUND: This article addresses typical injury patterns related to the traditional Swiss team sport of Hornussen. A small plastic disk is struck with a special elastic racket and then intercepted in the field. Severe injuries have occasionally been reported. We present a systematic review of all cases of Hornussen injuries treated in the University Hospital of Bern from 2000 to 2014. METHODS: To assess the frequency, type and outcome of Hornussen injuries, we performed a database search of all inpatient and outpatient cases related to Hornussen and that were admitted to and/or treated in Bern University Hospital from 2000 to 2014...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27896290/do-clinical-results-and-return-to-sport-rates-after-ulnar-collateral-ligament-reconstruction-differ-based-on-graft-choice-and-surgical-technique
#3
Brandon J Erickson, Gregory L Cvetanovich, Rachel M Frank, Bernard R Bach, Mark S Cohen, Charles A Bush-Joseph, Brian J Cole, Anthony A Romeo
BACKGROUND: Ulnar collateral ligament reconstruction (UCLR) has become a common procedure performed in overhead-throwing athletes of many athletic levels. PURPOSE/HYPOTHESIS: The purpose of this study was to determine whether clinical outcomes and return-to-sport (RTS) rates differ among patients undergoing UCLR based on graft choice, surgical technique, athletic competition level, handedness, and treatment of the ulnar nerve. We hypothesized that no differences would exist in clinical outcomes or RTS rates between technique, graft choice, or other variables...
November 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27872757/sports-nutrition-knowledge-among-mid-major-division-i-university-student-athletes
#4
Ashley Andrews, Janet R Wojcik, Joni M Boyd, Charles J Bowers
Competitive athletes have goals to optimize performance and to maintain healthy body composition. Sports nutrition is a component of training programs often overlooked by student-athletes and their coaches. The purpose of this study was to examine student-athletes' sports nutrition knowledge across sex, class level, team, and completion of prior nutrition coursework. Participants included 123 mid-major Division I university student-athletes (47 females and 76 males) from baseball, softball, men's soccer, track and field, and tennis...
2016: Journal of Nutrition and Metabolism
https://www.readbyqxmd.com/read/27872403/biomechanical-analysis-of-weighted-ball-exercises-for-baseball-pitchers
#5
Glenn S Fleisig, Alek Z Diffendaffer, Kyle T Aune, Brett Ivey, Walter A Laughlin
BACKGROUND: Weighted-ball throwing programs are commonly used in training baseball pitchers to increase ball velocity. The purpose of this study was to compare kinematics and kinetics among weighted-ball exercises with values from standard pitching (ie, pitching standard 5-oz baseballs from a mound). HYPOTHESIS: Ball and arm velocities would be greater with lighter balls and joint kinetics would be greater with heavier balls. STUDY DESIGN: Controlled laboratory study...
November 21, 2016: Sports Health
https://www.readbyqxmd.com/read/27864504/youth-baseball-pitching-stride-length-normal-values-and-correlation-with-field-testing
#6
Karl E Fry, Andrew Pipkin, Kelcie Wittman, Scott Hetzel, Marc Sherry
BACKGROUND: Pitching biomechanical analysis has been recommended as an important component of performance, injury prevention, and rehabilitation. Normal values for youth pitching stride length have not been established, leading to application of normative values found among professional pitchers to youth pitchers. HYPOTHESES: The average youth pitching stride length will be significantly less than that of college and professional pitchers. There will be a positive correlation between stride length, lower extremity power, balance, and pitching experience...
November 18, 2016: Sports Health
https://www.readbyqxmd.com/read/27852593/humeral-retrotorsion-and-glenohumeral-motion-in-youth-baseball-players-compared-with-age-matched-nonthrowing-athletes
#7
Elliot M Greenberg, J Todd R Lawrence, Alicia Fernandez-Fernandez, Philip McClure
BACKGROUND: Baseball players exhibit a more posteriorly oriented humeral head in their throwing arm. This is termed humeral retrotorsion (HRT) and likely represents a response to the stress of throwing. This adaptation is thought to occur while the athlete is skeletally immature, however currently there is limited research detailing how throwing activity in younger players influences the development of HRT. In addition, it is presently unclear how this changing osseous orientation may influence shoulder motion within young athletes...
November 16, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27849388/competition-level-differences-on-the-lower-quarter-y-balance-test-in-baseball-players
#8
Robert J Butler, Garrett Bullock, Todd Arnold, Phillip Plisky, Robin Queen
CONTEXT: Decreased performance in dynamic balance has previously been associated with a history of ulnar collateral ligament injury in baseball players. Previous research on dynamic balance in soccer players has shown that test performance depends on competition level. However, dynamic balance has yet to be examined in baseball players. OBJECTIVE: To understand normative values and determine differences in dynamic balance, as measured by the Lower Quarter Y-Balance Test, across competition levels in baseball players...
November 16, 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27834550/ironic-and-reinvestment-effects-in-baseball-pitching-how-information-about-an-opponent-can-influence-performance-under-pressure
#9
Rob Gray, Anders Orn, Tim Woodman
Are pressure-induced performance errors in experts associated with novice-like skill execution (as predicted by reinvestment/conscious processing theories) or expert execution towards a result that the performer typically intends to avoid (as predicted by ironic processes theory)? The present study directly compared these predictions using a baseball pitching task with two groups of experienced pitchers. One group was shown only their target while the other was shown the target and an ironic (avoid) zone. Both groups demonstrated significantly fewer target hits under pressure...
November 11, 2016: Journal of Sport & Exercise Psychology
https://www.readbyqxmd.com/read/27815010/determinants-of-major-league-baseball-pitchers-career-length
#10
Rich Hardy, Tiwaloluwa Ajibewa, Ray Bowman, Jefferson C Brand
PURPOSE: To investigate variables (injury, position, performance, and pitching volume) that affect the career longevity of Major League Baseball pitchers. METHODS: To be eligible, pitchers must have entered Major League Baseball between 1989 and 1992 without missing information for the variables on the website http://www.baseball-reference.com. The variables assessed were average innings pitched per year before and after age 25 years, earned run average, walks and hits divided by innings pitched, strikeout to walk ratio, pitching position, time on the disabled list, length of career, and starting and retirement age...
November 1, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27810848/effects-of-a-short-duration-stretching-drill-after-pitching-on-elbow-and-shoulder-range-of-motion-in-professional-baseball-pitchers
#11
Rafael F Escamilla, Kyle Yamashiro, Tony Mikla, Jeff Collins, Keith Lieppman, James R Andrews
BACKGROUND: A glenohumeral internal rotation (IR) deficit or a total rotational motion (IR plus external rotation [ER]) deficit in the throwing shoulder compared with the nonthrowing shoulder has been shown to increase the risk of shoulder and elbow injuries. After a pitching session, both IR and total rotational motion deficits have been shown to occur naturally for an extended period of time in asymptomatic pitchers, but it is unclear how to best control these deficits between pitching sessions...
November 3, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27802509/eye-movement-accuracy-determines-natural-interception-strategies
#12
Jolande Fooken, Sang-Hoon Yeo, Dinesh K Pai, Miriam Spering
Eye movements aid visual perception and guide actions such as reaching or grasping. Most previous work on eye-hand coordination has focused on saccadic eye movements. Here we show that smooth pursuit eye movement accuracy strongly predicts both interception accuracy and the strategy used to intercept a moving object. We developed a naturalistic task in which participants (n = 42 varsity baseball players) intercepted a moving dot (a "2D fly ball") with their index finger in a designated "hit zone." Participants were instructed to track the ball with their eyes, but were only shown its initial launch (100-300 ms)...
November 1, 2016: Journal of Vision
https://www.readbyqxmd.com/read/27766274/the-relationship-between-humeral-retrotorsion-and-shoulder-range-of-motion-in-baseball-players-with-an-ulnar-collateral-ligament-tear
#13
Bobby Jean S Lee, J Craig Garrison, John E Conway, Kalyssa Pollard, Subhash Aryal
BACKGROUND: Humeral retrotorsion has been investigated in relation to shoulder range of motion (ROM) in healthy baseball players. Currently, there is limited information on the osseous anatomy and development of ulnar collateral ligament (UCL) tears. PURPOSE: To determine the relationship between humeral retrotorsion and shoulder ROM in baseball players with a UCL tear. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: Fifty-four baseball players (mean age, 18...
October 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27742247/fresh-osteochondral-allograft-transplantation-for-osteochondritis-dissecans-of-the-capitellum-in-baseball-players
#14
Raffy Mirzayan, Michael J Lim
BACKGROUND: Osteochondritis dissecans (OCD) of the capitellum is a rare yet debilitating injury seen in young athletes. This is the first report in the literature describing fresh osteochondral allograft transplantation (FOCAT) to treat OCD of the capitellum. METHODS: Nine male baseball players (mean age, 15.3; range, 14-18 years), with OCD of the capitellum were treated with FOCAT. There were 6 pitchers and 3 position players. A ligament-sparing, mini-open approach was used...
November 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27713579/differences-in-hip-range-of-motion-among-collegiate-pitchers-when-compared-to-youth-and-professional-baseball-pitcher-data
#15
Scott W Cheatham, Kathryn Kumagai Shimamura, Morey J Kolber
The purpose of this study was to measure passive hip internal (IR) and external rotation (ER) range of motion (ROM) in collegiate baseball pitchers and compare to published youth and professional values. Measures were taken on the bilateral hips of 29 participants (mean age 20.0±1.4, range 18-22 years). Results identified no significant differences between the stance and stride hip in collegiate right handed pitchers for IR (p= 0.22, ES 0.23) and ER (p=.08, ES= 0.25). There was no significant difference in left handed pitchers for IR (p= 0...
September 2016: Journal of the Canadian Chiropractic Association
https://www.readbyqxmd.com/read/27713578/a-rare-cause-of-chronic-elbow-pain-in-an-adolescent-baseball-player-a-case-report
#16
David Wasylynko
OBJECTIVE: To present a case of chronic elbow pain as a result of a hidden underlying osteochondral defect. CLINICAL FEATURES: A 17-year old baseball player presented with chronic lateral elbow pain. Examination revealed swelling of the elbow with signs of possible ligament, muscle, and tendon injury. DIAGNOSIS AND TREATMENT: Although there was apparent soft-tissue injury, the elbow swelling created immediate suspicion of a more serious underlying condition...
September 2016: Journal of the Canadian Chiropractic Association
https://www.readbyqxmd.com/read/27632876/functional-performance-on-the-upper-quarter-y-balance-test-differs-between-high-school-wrestlers-and-baseball-players
#17
Heather Myers, Mary Poletti, Robert J Butler
CONTEXT: The Upper Quarter Y-Balance Test (YBT-UQ) is a unique movement test where individuals perform at the limits of their stability; requiring the coordination of balance, proprioception, range of motion, and stabilization. It is not yet clear if performance on the YBT-UQ differs between sports with dissimilar emphasis on upper extremity performance. OBJECTIVE: The objective of this study is to compare performance on the YBT-UQ between wrestlers, whose sport requires some degree of closed chain activity, and baseball players, whose sport is primarily open kinetic chain in nature...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27617847/automatic-detection-of-pitching-and-throwing-events-in-baseball-with-inertial-measurement-sensors
#18
Nick B Murray, Georgia M Black, Rod J Whiteley, Peter Gahan, Michael H Cole, Andy Utting, Tim J Gabbett
PURPOSE: Throwing loads are known to be closely related to injury risk, however for logistic reasons, typically only pitchers have their throws counted, and then only during innings. Accordingly, all other throws made are not counted, and therefore estimates of throws made by players may be inaccurately recorded and under-reported. A potential solution to this is the use of wearable microtechnology to automatically detect, quantify, and report pitch counts in baseball. This study investigated the accuracy of baseball pitching and throwing detection in both practice and competition using a commercially available wearable microtechnology unit...
September 6, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27609671/adaptability-of-expert-visual-anticipation-in-baseball-batting
#19
Sean Müller, Peter J Fadde, Allen G Harbaugh
By manipulating stimulus variation in terms of opponent pitcher actions, this study investigated the capability of expert (n = 30) and near-expert (n = 95) professional baseball batters to adapt anticipation skill when using the video simulation temporal occlusion paradigm. Participants watched in-game footage of two pitchers, one after the other, that was temporally occluded at ball release and various points during ball flight. They were required to make a written prediction of pitch types and locations...
September 9, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27587742/factors-related-to-increased-ulnar-collateral-ligament-thickness-on-stress-sonography-of-the-elbow-in-asymptomatic-youth-and-adolescent-baseball-pitchers
#20
Alfred Atanda, Lauren W Averill, Maegen Wallace, Tim A Niiler, Levon N Nazarian, Michael G Ciccotti
BACKGROUND: Stress ultrasound (SUS) of the elbow has demonstrated changes in the anterior band of the ulnar collateral ligament (UCL) in professional and high school-aged pitchers. However, there have been no large reports correlating pitching history data with SUS changes in youth and adolescent baseball pitchers. HYPOTHESIS: Changes of the UCL on SUS will correlate with pitching volume in youth and adolescent baseball pitchers. STUDY DESIGN: Cross-sectional study; Level of evidence, 3...
December 2016: American Journal of Sports Medicine
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