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https://www.readbyqxmd.com/read/27900708/can-posterior-capsular-stretching-rehabilitation-protocol-change-scapula-kinematics-in-asymptomatic-baseball-pitchers
#1
A Pellegrini, P Tonino, D Salazar, K Hendrix, I Parel, A Cutti, P Paladini, F Ceccarelli, G Porcellini
PURPOSE: Scapular dyskinesis is a recognized cause of shoulder pain in the throwing shoulder of baseball pitchers and athletes who participate in overhead sports. Past studies have assessed scapular kinematics using electromagnetic tracking devices and have shown a correlation between posterior shoulder tightness and forward scapular posture. The purpose of our study is to evaluate the scapular kinematics, before and after a 4-week posterior stretching protocol in asymptomatic pitchers...
December 2016: Musculoskeletal Surgery
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
#2
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/27872403/biomechanical-analysis-of-weighted-ball-exercises-for-baseball-pitchers
#3
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/27852593/humeral-retrotorsion-and-glenohumeral-motion-in-youth-baseball-players-compared-with-age-matched-nonthrowing-athletes
#4
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/27827880/wearable-imu-for-shoulder-injury-prevention-in-overhead-sports
#5
Samir A Rawashdeh, Derek A Rafeldt, Timothy L Uhl
Body-worn inertial sensors have enabled motion capture outside of the laboratory setting. In this work, an inertial measurement unit was attached to the upper arm to track and discriminate between shoulder motion gestures in order to help prevent shoulder over-use injuries in athletics through real-time preventative feedback. We present a detection and classification approach that can be used to count the number of times certain motion gestures occur. The application presented involves tracking baseball throws and volleyball serves, which are common overhead movements that can lead to shoulder and elbow overuse injuries...
November 3, 2016: Sensors
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
#6
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/27771737/youth-baseball-players-with-elbow-and-shoulder-pain-have-both-low-back-and-knee-pain-a-cross-sectional-study
#7
Takuya Sekiguchi, Yoshihiro Hagiwara, Haruki Momma, Masahiro Tsuchiya, Kaoru Kuroki, Kenji Kanazawa, Yutaka Yabe, Masashi Koide, Nobuyuki Itaya, Eiji Itoi, Ryoichi Nagatomi
PURPOSE: Serious arm injuries in youth baseball players have been increasing. Though a breakage in the kinetic chain could affect arm injuries, an association between arm injuries and insufficient support of the trunk and lower extremities is not well understood. The purpose of this study was to investigate the association of low back and knee pain with elbow and/or shoulder complaints among youth baseball players. METHODS: A self-administered questionnaire and document informed consent were mailed to youth athletes belonging to the Miyagi Amateur Sports Association...
October 22, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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
#8
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/27745803/sleeper-stretch-accelerates-recovery-of-glenohumeral-internal-rotation-after-pitching
#9
Katherine E Reuther, Ryan Larsen, Pamela D Kuhn, John D Kelly, Stephen J Thomas
BACKGROUND: The natural time course for recovery of glenohumeral internal rotation (IR) loss after a throwing episode is unknown. In addition, the effect of the sleeper stretch on the time course for recovery of motion after a throwing episode has never been investigated. Therefore, the objectives of this study were to (1) to determine the natural time course for spontaneous recovery of IR after a throwing episode and (2) to evaluate the effect of the sleeper stretch on the time course for recovery of IR after a throwing episode...
October 10, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27742247/fresh-osteochondral-allograft-transplantation-for-osteochondritis-dissecans-of-the-capitellum-in-baseball-players
#10
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/27726752/imaging-the-injured-pediatric-athlete-upper-extremity
#11
Jorge Delgado, Diego Jaramillo, Nancy A Chauvin
Increased physical activity in childhood has resulted in a large number of sports-related injuries. Although there is overlap between the sports-related injuries seen in pediatric and adult patients, important differences exist in the injury patterns of pediatric patients. These differences are related to the continuous changes in the developing skeleton and its relationship with adjacent soft tissues. The imbalance in strength between the growing bones and the nearby tendons and ligaments makes the bones prone to acute and chronic injuries...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27705057/reliability-and-validity-of-quantitative-video-analysis-of-baseball-pitching-motion
#12
Sakiko Oyama, Araceli Sosa, Rebekah Campbell, Alexandra Correa
Video recordings are used to quantitatively analyze pitchers' technique. However, reliability and validity of such analysis is unknown. The purpose of the study was to investigate the reliability and validity of joint and segment angles identified during a pitching motion using video analysis. Thirty high school baseball pitchers participated. The pitching motion was captured using two high-speed video cameras and a motion capture system. Two raters reviewed the videos to digitize the body segments to calculate two-dimensional angles...
October 5, 2016: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/27632891/effectiveness-of-stretching-on-posterior-shoulder-tightness-and-glenohumeral-internal-rotation-deficit-a-systematic-review-of-randomised-controlled-trials
#13
Koya Mine, Takashi Nakayama, Steve Milanese, Karen Grimmer
Posterior shoulder tightness (PST) and glenohumeral internal rotation deficit (GIRD) are common physical impairments in overhead sports, such as baseball, cricket and tennis.(1-4)) PST is clinically measured by passive shoulder horizontal adduction with scapula stabilized in supine or side lying.(5),(6)) GIRD is generally characterised as concurrent deficits of internal rotation (IR) and total arc of motion in dominant side.(7),(8)) Although the mechanisms of PST and GIRD are not clear, it is speculated that they derive from tight posterior glenohumeral capsule and posterior muscles, such as posterior deltoid, infraspinatus and teres minor muscles...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27632860/upper-extremity-blood-flow-volume-is-strongly-correlated-with-grip-strength-while-in-a-provocative-shoulder-position-among-baseball-pitchers
#14
Kevin Laudner, Jose Vazquez, Noelle Selkow, Keith Meister
CONTEXT: Baseball players, specifically pitchers, with symptomatic neurovascular occlusion often initially complain of arm fatigue, loss of ball control, and velocity. As the compression continues complaints may manifest into dull pain, paresthesia, and decreased grip strength. OBJECTIVE: To determine the correlation between upper extremity blood flow volume and grip strength among baseball pitchers. DESIGN: cross-sectional. SETTING: Athletic training room...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27618243/softball-pitching-and-injury
#15
Aaron Lear, Niraj Patel
The windmill softball pitch generates considerable forces about the athlete's shoulder and elbow. The injury pattern of softball pitchers seems to be primarily overuse injury, and they seem not to suffer the same volume of injury that baseball pitchers do. This article will explore softball pitching techniques, kinetics and kinematics of the windmill pitch, epidemiology of softball pitchers, and discuss possible etiologies of softball pitching injuries.
September 2016: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/27604190/physical-risk-factors-for-a-medial-elbow-injury-in-junior-baseball-players-a-prospective-cohort-study-of-353-players
#16
Jun Sakata, Emi Nakamura, Makoto Suzukawa, Atsushi Akaike, Kuniaki Shimizu
BACKGROUND: The physical risk factors for a medial elbow injury in junior baseball players are unknown. PURPOSE: To identify the risk factors for an initial medial elbow injury in junior baseball players. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: Junior baseball players (aged 6-12 years) without a history of elbow pain underwent a clinical assessment, ultrasonography, and physical function measurements before the baseball season started...
September 7, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27590172/baseball-players-with-an-ulnar-collateral-ligament-tear-display-increased-nondominant-arm-humeral-torsion-compared-with-healthy-baseball-players
#17
Casey J Meyer, J Craig Garrison, John E Conway
BACKGROUND: Previous work has suggested that an increase in the amount of developmentally acquired, dominant arm humeral retrotorsion (D HRT) in the thrower's shoulder may be a potentially protective mechanism. Although the relationship between HRT and shoulder injuries has been reported, the relationship between HRT and ulnar collateral ligament (UCL) tears in baseball players is not known. PURPOSE: To determine whether D HRT and nondominant arm HRT (ND HRT) measurements in baseball players with a UCL tear differ statistically from a matched healthy cohort...
September 2, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27587844/relationship-between-humeral-retroversion-and-length-of-baseball-career-before-the-age-of-16-years
#18
Chihiro Nakase, Teruhisa Mihata, Yasuo Itami, Atsushi Takeda, Masashi Neo
BACKGROUND: Humeral retroversion physiologically decreases during growth. However, in throwing athletes, the external forces caused by repetitive throwing are thought to increase humeral retroversion on the dominant side compared with that on the nondominant side. PURPOSE: To investigate the correlation between humeral retroversion and length of baseball career before age 16 years. STUDY DESIGN: Cross-sectional study; Level of evidence, 3...
September 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27551938/absence-of-bilateral-differences-in-child-baseball-players-with-throwing-related-pain
#19
M Mickevičius, S Rutkauskas, S Sipavičienė, A Skurvydas, J Jürimäe, H Degens, S Kamandulis
The aim of this study was to assess whether side-to-side differences in morphology and function of the upper limbs in 11-12 year-old male baseball players with throwing-related pain (n=14) were more pronounced than that of age-matched healthy untrained subjects (n=16). Baseball players 1) had played baseball≥4.5 h·wk(-1) for ≥ 4 years and (2) suffered from moderate-intensity (3-6 points on 10-point questionnaire scale) throwing-related pain in the shoulder or elbow in at least 2 training sessions within the past month...
November 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27525185/chronic-ucl-injury-a-multimodal-approach-to-correcting-altered-mechanics-and-improving-healing-in-a-college-athlete-a-case-report
#20
Rachel Patrick, Josh McGinty, Ann Lucado, Beth Collier
BACKGROUND: Ulnar collateral ligament (UCL) tears and associated Tommy Johns surgical intervention from excessive and poor quality pitching has increased immensely-with more college and professional pitchers undergoing the surgery in 2014 alone than in the 1990s as a whole.(1) Faulty mechanics developed at young ages are often well-engrained by the late adolescent years and the minimal healing ability of the largely avascular UCL often leads to delayed safe return to sport.(2). PURPOSE: The purpose of this case study was to describe an innovative, multimodal approach to conservative management of a chronic UCL injury in a college-aged baseball pitcher...
August 2016: International Journal of Sports Physical Therapy
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