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https://www.readbyqxmd.com/read/29146167/incidence-and-return-to-play-after-biceps-tenodesis-in-professional-baseball-players
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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...
September 1, 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
#11
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...
September 21, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28942657/return-to-play-and-outcomes-in-baseball-players-after-superior-labral-anterior-posterior-repairs
#12
Brad D Gilliam, Lonnie Douglas, Glenn S Fleisig, Kyle T Aune, Kylie A Mason, Jeffrey R Dugas, E Lyle Cain, Roger V Ostrander, James R Andrews
BACKGROUND: Few studies have documented the outcomes of superior labral anterior-posterior (SLAP) repairs in baseball players. Furthermore, the results of these previous studies varied widely and were based on small numbers of patients. Hypothesis/Purpose: The purpose was to report return-to-play (RTP) rates and validated subjective outcome scores for baseball players after SLAP repair. It was hypothesized that RTP rates and outcomes would be significantly different between pitchers and nonpitchers, as well as among baseball levels...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28930881/comparing-the-immediate-effects-of-a-total-motion-release-warm-up-and-a-dynamic-warm-up-protocol-on-the-dominant-shoulder-in-baseball-athletes
#13
Stephen C Gamma, Russell Baker, Alan Nasypany, James May, Jeff G Seegmiller, Steven M Iorio
PURPOSE: A decrease in total range of motion (ROM) of the dominant shoulder may predispose baseball athletes to increased shoulder injury risk; the most effective technique for improving ROM is unknown. The purpose of this study was to compare the immediate effects of Total Motion Release® (TMR) to a generic dynamic warm-up program in baseball athletes. METHODS: Baseball athletes (n=20) were randomly assigned to an intervention group: TMR® group (TMRG; n=10) or traditional warm-up group (TWG; n=10)...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28865566/decreased-shoulder-external-rotation-and-flexion-are-greater-predictors-of-injury-than-internal-rotation-deficits-analysis-of-132-pitcher-seasons-in-professional-baseball
#14
Christopher L Camp, John M Zajac, David B Pearson, Alec M Sinatro, Andrea M Spiker, Brian C Werner, David W Altchek, Struan H Coleman, Joshua S Dines
PURPOSE: The primary aims of this work were to (1) describe normal range of motion (ROM) profiles for elite pitchers, (2) describe the characteristics of shoulder and elbow injuries in professional pitchers over a 6-year period in one Major League Baseball organization, and (3) identify ROM measures that were independently associated with a future shoulder or elbow injury. METHODS: Over 6 seasons (2010-2015), a preseason assessment was performed on all pitchers invited to Major League Baseball Spring Training for a single organization...
September 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28806094/the-relationship-of-throwing-arm-mechanics-and-elbow-varus-torque-within-subject-variation-for-professional-baseball-pitchers-across-82-000-throws
#15
Christopher L Camp, Travis G Tubbs, Glenn S Fleisig, Joshua S Dines, David M Dines, David W Altchek, Brittany Dowling
BACKGROUND: Likely due to the high level of strain exerted across the elbow during the throwing motion, elbow injuries are on the rise in baseball. To identify at-risk athletes and guide postinjury return-to-throw programs, a better understanding of the variables that influence elbow varus torque is desired. PURPOSE: To describe the within-subject relationship between elbow varus torque and arm slot and arm rotation in professional baseball pitchers. STUDY DESIGN: Descriptive laboratory study...
November 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28781975/upper-extremity-range-of-motion-and-pitching-profile-of-baseball-pitchers-in-japan
#16
Ted Sueyoshi, Takuya Nakatani, Takashi Tsuruta, Gen Emoto
BACKGROUND: Shoulder range of motion and pitch count in baseball pitchers have been linked to pitching-related upper extremity injury. PURPOSE: To investigate upper extremity range of motion and pitching profiles in baseball pitchers in Japan as well as to make a comparison between injured and noninjured pitchers. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: Forty-one Little League to college-level baseball pitchers were measured for bilateral shoulder and elbow range of motion, including shoulder internal rotation (IR), external rotation (ER), shoulder horizontal adduction (HAD), and elbow extension (EXT)...
July 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28743205/do-baseball-pitchers-improve-mechanics-after-biomechanical-evaluations
#17
Glenn S Fleisig, Alek Z Diffendaffer, Brett Ivey, Kyle T Aune
The purpose of this study was to determine how often flaws in pitching mechanics identified from biomechanical analysis are corrected. The biomechanics of 46 baseball pitchers were evaluated twice, with an average of 12 months (range 2-48 months) between evaluations. Pitchers were healthy at the time of both evaluations, competing at the high school, college, minor league or Major League level. After warming up, each participant pitched 10 full-effort fastballs. Automated three-dimensional motion analysis was used to compute eight kinematic parameters which were compared with a database of elite professional pitchers...
July 25, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28692836/multi-body-dynamic-coupling-mechanism-for-generating-throwing-arm-velocity-during-baseball-pitching
#18
Kozo Naito, Tokio Takagi, Hideaki Kubota, Takeo Maruyama
The purpose of this study was to identify the detailed mechanism how the maximum throwing arm endpoint velocity is determined by the muscular torques and non-muscular interactive torques from the perspective of the dynamic coupling among the trunk, thorax and throwing and non-throwing arm segments. The pitching movements of ten male collegiate baseball pitchers were measured by a three-dimensional motion capture system. Using the induced-segmental velocity analysis (IVA) developed in this study, the maximum fingertip velocity of the throwing arm (MFV) was decomposed into each contribution of the muscular torques, passive motion-dependent torques due to gyroscopic moment, Coriolis force and centrifugal force, and other interactive torque components...
August 2017: Human Movement Science
https://www.readbyqxmd.com/read/28689823/performance-and-return-to-sport-in-elite-baseball-players-and-recreational-athletes-following-repair-of-the-latissimus-dorsi-and-teres-major
#19
Brandon J Erickson, Peter N Chalmers, Brian R Waterman, Justin W Griffin, Anthony A Romeo
BACKGROUND: Tears of the latissimus dorsi (LD) and teres major (TM) are rare but disabling injuries in the overhead athlete. METHODS: All patients who underwent an LD and/or TM repair between January 1, 2010, and June 6, 2016, with more than 12 months' follow-up were included. Demographic information and postoperative range of motion were recorded. Patients were contacted via phone and answered questions to provide the following: Kerlan-Jobe Orthopaedic Clinic (KJOC) shoulder and elbow outcome score, American Shoulder and Elbow Surgeons (ASES) shoulder score, and visual analog scale (VAS) score...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28680897/high-prevalence-of-nontraumatic-shoulder-pain-in-a-regional-sample-of-female-high-school-volleyball-athletes
#20
Kayt E Frisch, Jacob Clark, Chad Hanson, Chris Fagerness, Adam Conway, Lindsay Hoogendoorn
BACKGROUND: Shoulder pain is becoming increasingly problematic in young players as volleyball gains popularity. Associations between repetitive motion and pain and overuse injury have been observed in other overhand sports (most notably baseball). Studies of adult athletes suggest that there is a shoulder pain and overuse problem present in volleyball players, but minimal research has been done to establish rates and causes in juvenile participants. PURPOSE: To establish rates of shoulder pain, regardless of whether it resulted in a loss of playing time, in female high school volleyball players...
June 2017: Orthopaedic Journal of Sports Medicine
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