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https://www.readbyqxmd.com/read/29318169/reasons-for-retirement-following-ulnar-collateral-ligament-reconstruction-among-major-league-baseball-pitchers
#1
Brandon J Erickson, Junyoung Ahn, Peter N Chalmers, Christopher S Ahmad, Bernard R Bach, Nikhil N Verma, Anthony A Romeo
Background: Ulnar collateral ligament reconstruction (UCLR) has become an increasingly common procedure among Major League Baseball (MLB) pitchers. The long-term effects of this procedure on the career of an MLB pitcher are largely unknown. Purpose/Hypothesis: The purpose of this study was to determine why and when MLB pitchers who underwent UCLR during their careers retired from baseball as compared with controls. We hypothesized that pitchers who underwent UCLR are no more likely than control pitchers to retire from elbow or shoulder problems...
December 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29291284/little-league-shoulder-in-a-15-year-old-male-baseball-pitcher
#2
Mark C Zipser, Jonathan C Sum, Alison G Wilcox
A 15-year-old baseball pitcher presented to physical therapy with a 1-week history of acute right shoulder pain experienced during the acceleration phase of throwing. The week after physical therapy evaluation, the patient returned with radiographs and magnetic resonance imaging results that revealed lateral physeal widening with adjacent edema. Additionally, a nondisplaced labral tear was noted. In this case, imaging was necessary for an accurate diagnosis of lateral physeal widening, commonly referred to as "Little League shoulder...
January 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29289396/assessment-of-elbow-torque-and-other-parameters-during-the-pitching-motion-comparison-of-fastball-curveball-and-change-up
#3
Eric C Makhni, Vincent A Lizzio, Fabien Meta, Jeffrey P Stephens, Kelechi R Okoroha, Vasilios Moutzouros
PURPOSE: To assess the precision of a new wearable device in detecting medial elbow torque during the pitching motion in competitive baseball pitchers and to determine the differences in torque across pitch types and thrower demographic characteristics. METHODS: High school and collegiate baseball pitchers were recruited from August 1, 2016, to January 31, 2017, through direct request by athletic trainers and coaches. Body dimensions and throwing arm measurements of the participants were collected...
December 27, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29241660/effects-of-glenohumeral-internal-rotation-deficit-on-baseball-pitching-among-pitchers-of-different-ages
#4
Paul Pei-Hsi Chou, You-Li Chou, Yan-Sheng Wang, Rong-Tyai Wang, Hwai-Ting Lin
BACKGROUND: Previous studies have reported that glenohumeral internal rotation deficit (GIRD) may increase the risk of shoulder injury. However, the effects of GIRD on baseball pitching among pitchers of different age groups are still unclear. METHODS: The study participants were 24 high school and 24 university pitchers. For each age group, the pitchers were evenly divided into a GIRD group and a normal group. The pitching motion of each participant was captured using a motion analysis system at a sampling frequency of 300 Hz...
December 11, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29204453/physical-and-functional-differences-in-youth-baseball-players-with-and-without-throwing-related-pain
#5
Elliot M Greenberg, J Todd R Lawrence, Alicia Fernandez-Fernandez, Kshamata Shah, Casey McKenna, Marcus L Rowan, JongMyung Kim, Phillip McClure
Background: Identifying risk factors that contribute to shoulder and elbow pain within youth baseball players is important for improving injury prevention and rehabilitation strategies. Hypothesis: Differences will exist between youth baseball players with and without a history of upper extremity pain on measures related to growth, shoulder performance, and baseball exposure. Study Design: Case-control study; Level of evidence, 3. Methods: A total of 84 youth baseball players were divided into 2 groups based on self-reported history of throwing-related arm pain...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29201309/little-leaguer-s-shoulder-can-cause-severe-three-dimensional-humeral-deformity
#6
Yuji Hosokawa, Teruhisa Mihata, Yasuo Itami, Masashi Neo, Munekazu Doi
We analyzed three-dimensional (3D) humeral deformity (valgus-varus, flexion-extension, and rotational deformation) after little leaguer's shoulder using 3D computed tomography in a 15-year-old male baseball player. Humeral retroversion was increased by 27.1° on the dominant side compared with the nondominant side. Compared with the nondominant shaft, the dominant humeral shaft was deformed in the varus direction (9.4°), resulting in a decreased neck-shaft angle (dominant side, 127.5°; nondominant side, 135...
December 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/29170690/correlation-between-the-functional-movement-screen-and-hip-mobility-in-ncaa-division-ii-athletes
#7
Matthew T Jenkins, Robert Gustitus, Mike Iosia, Taz Kicklighter, Yuichi Sasaki
The Functional Movement Screen (FMS) is a series of seven exercises designed to assess athletes prior to competitive training to determine dysfunctional movement patterns. The exercises include the deep squat (DS), hurdle step (HS), inline lunge (IL), shoulder mobility (SM), active straight leg raise (ASL), pushup (PU), and rotary stability (RS), all of which comprise the composite score (FMS CS). The purpose of this study was to determine correlations between the FMS screens and hip mobility. The specific hip range-of-motion exercises used were bilateral internal/external rotation (IRR, IRL ERL, ERR), and flexion/extension (FL, FR, ER, EL)...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/29162768/coexistence-of-trunk-or-lower-extremity-pain-with-elbow-and-or-shoulder-pain-among-young-overhead-athletes-a-cross-sectional-study
#8
Takuya Sekiguchi, Yoshihiro Hagiwara, Haruki Momma, Masahiro Tsuchiya, Kaoru Kuroki, Kenji Kanazawa, Yutaka Yabe, Shinichiro Yoshida, Masashi Koide, Nobuyuki Itaya, Eiji Itoi, Ryoichi Nagatomi
Elbow or shoulder injuries are common in overhead sports. Because energy derived from the lower extremity passes through the trunk to the upper extremity in overhead motion, a break in such a kinetic chain could lead to arm injuries. However, there is only limited information about the role of the trunk and lower extremity support in preventing elbow or shoulder injuries. This study aimed to explore the association of trunk and lower extremity pain with elbow/shoulder pain among young overhead athletes. We conducted a cross-sectional study using self-reported questionnaires mailed to young athletes belonging to the Miyagi Amateur Sports Association...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29158957/relationship-of-preseason-movement-screens-with-overuse-symptoms-in-collegiate-baseball-players
#9
Andrew M Busch, Daniel R Clifton, James A Onate, Vincent K Ramsey, Fred Cromartie
Background: The shoulder mobility screen of the Functional Movement Screen™ (FMS™) and the upper extremity patterns of the Selective Functional Movement Assessment (SFMA) assess global, multi-joint movement capabilities in the upper-extremities. Identifying which assessment can most accurately determine if baseball players are at an increased risk of experiencing overuse symptoms in the shoulder or elbow throughout a competitive season may reduce throwing-related injuries requiring medical attention...
November 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29146167/incidence-and-return-to-play-after-biceps-tenodesis-in-professional-baseball-players
#10
Peter N Chalmers, Brandon J Erickson, Nikhil N Verma, John D'Angelo, Anthony A Romeo
PURPOSE: To determine return to play (RTP) rates after biceps tenodesis (BT) in professional baseball players. METHODS: Major League Baseball has maintained a prospective database containing all major and minor league baseball players who have undergone shoulder surgery since 2010. All players who had undergone BT were included. Minimum follow-up was 24 months, and thus we included data from 2010 to 2013. Using this database we determined the incidence, demographics, prior surgery history, concomitant procedures, RTP rates, and time to RTP...
November 13, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29140178/infraspinatus-cross-sectional-area-and-shoulder-range-of-motion-change-following-live-game-baseball-pitching
#11
Brett S Pexa, Eric D Ryan, Elizabeth E Hibberd, Elizabeth Teel, Terri Jo Rucinski, Joseph B Myers
CONTEXT: Following a baseball pitching bout, changes can occur to glenohumeral range of motion that could be linked to injury. These effects are in part due to the posterior shoulder's eccentric muscle activity, which can disrupt muscle contractile elements and lead to changes in muscle cross sectional area (CSA), as measured by ultrasound. OBJECTIVE: To assess changes in muscle CSA, and range of motion immediately before and after pitching, and days 1-5 following pitching...
November 15, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29095655/efficacy-of-a-prevention-program-for-medial-elbow-injuries-in-youth-baseball-players
#12
Jun Sakata, Emi Nakamura, Tatsuhiro Suzuki, Makoto Suzukawa, Atsushi Akaike, Kuniaki Shimizu, Norikazu Hirose
BACKGROUND: Youth baseball players are at high risk for elbow injuries, which can lead to future functional disability. PURPOSE: To evaluate the effectiveness of a prevention program to lower the risk of medial elbow injury in these athletes. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: Youth baseball players, 8 to 11 years old, without a history of elbow and shoulder pain, were allocated to either the intervention (n = 136) or control (n = 169) group...
November 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29090988/youth-baseball-pitching-mechanics-a-systematic-review
#13
Samuel F Thompson, Trent M Guess, Andreas C Plackis, Seth L Sherman, Aaron D Gray
CONTEXT: Pitching injuries in youth baseball are increasing in incidence. Poor pitching mechanics in young throwers have not been sufficiently evaluated due to the lack of a basic biomechanical understanding of the "normal" youth pitching motion. OBJECTIVE: To provide a greater understanding of the kinetics and kinematics of the youth baseball pitching motion. DATA SOURCES: PubMed, MEDLINE, and SPORTDiscus databases were searched from database inception through February 2017...
November 1, 2017: Sports Health
https://www.readbyqxmd.com/read/29054382/outcome-of-conservative-treatment-for-little-league-shoulder-in-young-baseball-players-factors-related-to-incomplete-return-to-baseball-and-recurrence-of-pain
#14
Mikio Harada, Masatoshi Takahara, Masahiro Maruyama, Mikiro Kondo, Tomohiro Uno, Michiaki Takagi, Nariyuki Mura
BACKGROUND: The purpose of this study was to investigate the factors associated with poor results and pain recurrence in young baseball players with Little League shoulder (LLS). METHODS: Eighty-seven young baseball players with LLS (mean age, 12.1 years) underwent conservative treatment. Of the players, 68 (78%) underwent conservative treatment involving the prohibition of throwing for an average of 1.2 months whereas the remaining 19 (22%) continued throwing with limitations...
October 17, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29048928/epidemiology-of-shoulder-and-elbow-injuries-among-united-states-high-school-baseball-players-school-years-2005-2006-through-2014-2015
#15
Michael G Saper, Lauren A Pierpoint, Wei Liu, R Dawn Comstock, John D Polousky, James R Andrews
BACKGROUND: Shoulder and elbow injuries are common in young athletes, especially high school baseball players. Understanding the risk factors associated with baseball injuries is an essential first step in the development of injury prevention strategies. PURPOSE: To provide a comprehensive understanding of the epidemiology of shoulder and elbow injuries among high school baseball players in the United States. STUDY DESIGN: Descriptive epidemiological study...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29024601/a-biomechanical-analysis-of-the-association-between-forearm-mechanics-and-the-elbow-varus-moment-in-collegiate-baseball-pitchers
#16
Matthew J Solomito, Erin J Garibay, Carl W Nissen
BACKGROUND: The incidence of upper extremity injury in baseball pitchers has increased over the past decade. This has resulted in a large body of research mainly focused on the kinematic and kinetic patterns of the elbow and shoulder to elucidate the cause of these injuries, with little attention on studying the associations of forearm rotation and upper arm joint moments. HYPOTHESIS: There will be significant differences in forearm kinematics and kinetics when comparing the fastball pitch with the curveball pitch...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28975133/pectoralis-minor-contracture-in-throwing-shoulders-of-asymptomatic-adolescent-baseball-players
#17
Justin L Hodgins, William Rubenstein, David Kovacevic, Ajay Padaki, Charles M Jobin, Christopher S Ahmad
BACKGROUND: Although scapular malpositioning is commonly associated with rotational deficits and risk of injury, modifiable causes of such malpositioning in overhead athletes are not well described. PURPOSE/HYPOTHESIS: The purpose of this study was to examine the scapulothoracic profile of adolescent baseball players, specifically, pectoralis minor (PM) length. We hypothesized that PM would be shorter in throwing shoulders compared with nonthrowing shoulders. STUDY DESIGN: Cross-sectional study; Level of evidence, 3...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28968146/changes-in-youth-baseball-pitching-biomechanics-a-7-year-longitudinal-study
#18
Glenn S Fleisig, Alek Z Diffendaffer, Brett Ivey, Kyle T Aune, Tony Laughlin, Dave Fortenbaugh, Becky Bolt, Wendy Lucas, Kevin D Moore, Jeffrey R Dugas
BACKGROUND: Pitching biomechanics are associated with performance and risk of injury in baseball. Previous studies have identified biomechanical differences between youth and adult pitchers but have not investigated changes within individual young pitchers as they mature. HYPOTHESIS: Pitching kinematics and kinetics will change significantly during a youth pitcher's career. STUDY DESIGN: Descriptive laboratory study. METHODS: Pitching biomechanics were captured in an indoor laboratory with a 12-camera, 240-Hz motion analysis system for 51 youth pitchers who were in their first season of organized baseball with pitching...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28968139/biomechanical-comparisons-among-fastball-slider-curveball-and-changeup-pitch-types-and-between-balls-and-strikes-in-professional-baseball-pitchers
#19
Rafael F Escamilla, Glenn S Fleisig, Dave Groeschner, Ken Akizuki
BACKGROUND: In professional baseball pitchers, pitching biomechanics have not been examined for the slider, and the only known study for the curveball and changeup examined limited kinetics. Moreover, no known studies have investigated pitching biomechanics between strikes and balls. Purpose/Hypothesis: The purpose was to compare pitching biomechanics in professional baseball pitchers among the fastball, slider, curveball, and changeup and between balls and strikes. It was hypothesized that pitching kinematics and kinetics would be similar among the slider, fastball, and curveball; shoulder and elbow forces and torques would be significantly lower in the changeup; and pitching biomechanics would be similar between balls and strikes...
December 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28943009/midterm-and-long-term-follow-up-in-competitive-athletes-undergoing-thoracic-outlet-decompression-for-neurogenic-thoracic-outlet-syndrome
#20
William Shutze, Brad Richardson, Ryan Shutze, Kimberly Tran, Allen Dao, Gerald O Ogola, Allan Young, Greg Pearl
BACKGROUND: Neurogenic thoracic outlet syndrome (NTOS) results from compression of the brachial plexus by the clavicle, first rib, and scalene muscles and may develop secondary to repetitive motion of the upper extremity. Athletes routinely perform repetitive motions, and sports requiring significant arm and shoulder use may put the participant at increased risk for NTOS. Competitive athletes who develop NTOS may require first rib resection and scalenectomy (FRRS) for symptomatic relief...
December 2017: Journal of Vascular Surgery
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