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https://www.readbyqxmd.com/read/28328567/effects-of-a-simulated-game-on-upper-extremity-pitching-mechanics-and-muscle-activations-among-various-pitch-types-in-youth-baseball-pitchers
#1
Gretchen D Oliver, Hillary Plummer, Lisa Henning, Michael Saper, Gabrielle Glimer, Allison Brambeck, James R Andrews
BACKGROUND: Throwing requires proper stability and orientation of the pelvis and scapula for efficient energy transfer during pitching. Fatigue of the pelvis and scapular musculature throughout the course of a game can impair pitching performance, and place excessive demands on the throwing arm leading to injury. The purpose of this study was to examine differences in pelvis, torso, and upper extremity pitching mechanics and muscle activations between the fastball, change-up, and curveball pitches in youth baseball pitchers following a simulated game...
March 21, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28325273/length-of-time-between-surgery-and-return-to-sport-after-ulnar-collateral-ligament-reconstruction-in-major-league-baseball-pitchers-does-not-predict-need-for-revision-surgery
#2
Brandon J Erickson, Peter N Chalmers, Bernard R Bach, Joshua S Dines, Nikhil N Verma, Charles A Bush-Joseph, Steven B Cohen, Anthony A Romeo
HYPOTHESIS: Pitchers who return to sport (RTS) sooner will have a higher risk of revision ulnar collateral ligament reconstruction (UCLR) than those who return later. METHODS: All professional (major and minor league) baseball pitchers who underwent UCLR between 1974 and 2016 were identified. Date of the index UCLR was recorded. The date of the first game back at any professional level after surgery and the date the pitcher returned to the same level of play (if applicable) were recorded...
April 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28323792/the-effect-of-intermittent-vest-cooling-on-thermoregulation-and-cardiovascular-strain-in-baseball-catchers
#3
Stacy Bishop, David J Szymanski, Greg A Ryan, Robert L Herron, Phil A Bishop
Baseball catchers are exposed to multiple physiological challenges while playing outside during the spring and summer months, many of which deal with recovery and thermoregulation. The purpose of this study was to investigate the effect of intermittent cooling on core temperature, cardiovascular strain, exertion, and recovery during a simulated catching performance in the heat. Six trained college-aged baseball catchers performed in a controlled, hot (35 °C) and humid (25% relative humidity) environment in a counter-balanced, cross-over design...
March 20, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28321431/osteochondritis-dissecans-of-the-humeral-capitellum-in-young-athletes-comparison-between-baseball-players-and-gymnasts
#4
Shiro Kajiyama, Satoshi Muroi, Hiroyuki Sugaya, Norimasa Takahashi, Keisuke Matsuki, Nobuaki Kawai, Makoto Osaki
BACKGROUND: Osteochondritis dissecans (OCD) lesions are often observed in the humeral capitellum both in young baseball players and gymnasts. It is generally believed that capitellar OCD in baseball players can be seen on an anteroposterior (AP) radiograph with the elbow in 45° of flexion. However, the mechanism of injury seems to be different in baseball players and gymnasts. Repetitive valgus overload with the elbow in flexion is believed to be the cause of capitellar OCD lesions in baseball players, whereas weightbearing with the elbow in extension may be the cause of OCD in gymnasts...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321427/the-effect-of-the-number-of-carries-on-injury-risk-and-subsequent-season-s-performance-among-running-backs-in-the-national-football-league
#5
Matthew J Kraeutler, John W Belk, Eric C McCarty
BACKGROUND: In recent years, several studies have correlated pitch count with an increased risk for injury among baseball pitchers. However, no studies have attempted to draw a similar conclusion based on number of carries by running backs (RBs) in football. PURPOSE: To determine whether there is a correlation between number of carries by RBs in the National Football League (NFL) and risk of injury or worsened performance in the subsequent season. STUDY DESIGN: Cohort study; Level of evidence, 3...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28314694/stress-ultrasound-in-baseball-players-with-ulnar-collateral-ligament-injuries-additional-value-for-predicting-rehabilitation-outcome
#6
Na Ra Kim, Sung Gyu Moon, Jin-Young Park, Jin Woo Choi, Kyung-Soo Oh
BACKGROUND: The purpose of this study was to evaluate the additional value of stress ultrasound (US) for predicting rehabilitation outcome in baseball players with ulnar collateral ligament (UCL) injury. METHODS: Stress US and magnetic resonance imaging (MRI) in 41 baseball players with UCL injury who received rehabilitation treatment for more than 6 weeks were retrospectively compared between the rehabilitation group (n = 23) and surgery group (n = 18)...
March 14, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28314422/maxillofacial-and-mandibular-fractures-in-sports
#7
REVIEW
Christopher F Viozzi
Sports account for 3% to 29% of facial injuries and 10% to 42% of facial fractures. Fractures of the facial skeleton most commonly occur owing to interpersonal violence or motor vehicle crashes. Facial fractures from sporting activities has clearly decreased over time owing to better preventive measures. However, this decreasing trend is offset by the emergence of more dangerous sports activities, or "pushing the envelope" of traditional sports activities. Fractures can occur from contact between athletes, and between athletes and their surroundings...
April 2017: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/28303472/chronic-exertional-compartment-syndrome-in-the-forearm-of-a-collegiate-softball-pitcher
#8
REVIEW
Austin Cole, John L Hiatt, Christopher Arnold, Terry Sites, Ramon Ylanon
BACKGROUND: Chronic exertional compartment syndrome (CECS) is a recognized condition in the lower limb, with many reports in the literature. However, very few instances include CECS of the upper limb. This article presents the case of a collegiate softball pitcher presenting with CECS in her right forearm. To our knowledge, this is the first case report of a softball player with CECS, with only one similar incident in a major league baseball player. PURPOSE: The rarity of this condition normally places it low on the differential diagnosis...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28287034/exploration-of-us-men-s-professional-sport-organization-concussion-policies
#9
Graham Dean Cochrane, Matthew Owen, Joseph D Ackerson, Mathew H Hale, Sara Gould
OBJECTIVE: Concussion policies are increasingly being developed and adopted among professional sports organizations. We sought to compare the policies of the National Hockey League (NHL), the National Basketball Association (NBA), the National Football League (NFL), and Major League Baseball (MLB). Our objective was to summarize each policy and evaluate the extent to which each policy is organization-specific and/or consistent with medical guidelines. DESIGN: We visited websites for the NHL, NBA, NFL, and MLB...
March 11, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28282749/visual-abilities-distinguish-pitchers-from-hitters-in-professional-baseball
#10
David Klemish, Benjamin Ramger, Kelly Vittetoe, Jerome P Reiter, Surya T Tokdar, Lawrence Gregory Appelbaum
This study aimed to evaluate the possibility that differences in sensorimotor abilities exist between hitters and pitchers in a large cohort of baseball players of varying levels of experience. Secondary data analysis was performed on 9 sensorimotor tasks comprising the Nike Sensory Station assessment battery. Bayesian hierarchical regression modelling was applied to test for differences between pitchers and hitters in data from 566 baseball players (112 high school, 85 college, 369 professional) collected at 20 testing centres...
February 15, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28277893/risk-factors-for-shoulder-and-elbow-pain-in-youth-baseball-players
#11
Tetsuya Matsuura, Toshiyuki Iwame, Naoto Suzue, Kokichi Arisawa, Koichi Sairyo
OBJECTIVES: This study sought to quantify the 1-year cumulative incidence of shoulder and elbow pain among youth baseball players and identify risk factors associated with the occurrence of shoulder and elbow pain. METHODS: In total, 900 youth baseball players (aged 7-11 years) were enrolled in a 1-year prospective follow-up study. One year later, the players were asked whether they had experienced episodes of shoulder or elbow pain and the following risk factors for such pain were investigated: age, position, length of baseball experience, training hours per week, and history of shoulder or elbow pain...
March 9, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28276988/are-professional-handball-players-at-risk-for-developing-a-glenohumeral-internal-rotation-deficit-in-their-dominant-arm
#12
Pedro Seabra, Carola F Van Eck, Márcia Sá, João Torres
OBJECTIVES: Overhead athletes, such as baseball players, have been shown to have adaptive changes in the shoulder range of motion (ROM) of their dominant arm. Professional handball players are a unique subtype of overhead athletes with very different demands from baseball players. The aim of this study was to determine if professional handball players demonstrate differences in shoulder ROM between their dominant and non-dominant arm and try to relate them with new variables. METHODS: Fifty professional male handball players were included and completed a questionnaire regarding age at which they started to play, number of hours they practice a week, field position and arm dominance...
February 28, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28276581/application-of-the-matching-law-to-pitch-selection-in-professional-baseball
#13
David J Cox, Jacob Sosine, Jesse Dallery
This study applied the generalized matching equation (GME) to pitch selection in professional baseball. The GME was fitted to the relation between pitch selection and hitter outcomes for five professional baseball pitchers during the 2014 Major League Baseball season. The GME described pitch selection well. Pitch allocation varied across different game contexts such as inning, count, and number of outs in a manner consistent with the GME. Finally, within games, bias decreased for four of the five pitchers and the sensitivity parameter increased for three of the five pitchers...
March 9, 2017: Journal of Applied Behavior Analysis
https://www.readbyqxmd.com/read/28262856/resting-serum-concentration-of-high-sensitivity-c-reactive-protein-hs-crp-in-sportsmen-and-untrained-male-adults
#14
COMPARATIVE STUDY
F A Niyi-Odumosu, O A Bello, S A Biliaminu, B V Owoyele, T O Abu, O L Dominic
There is an inverse relationship between regular physical activity and concentration of serum inflammatory markers, with variations in resting CRP in trained and untrained subjects. The effect of acute and prolonged exercises has been studied on inflammatory markers with dearth of information and controversies on the resting serum values of high sensitivity CRP (hs-CRP). Therefore, this study sought to identify and compare variations that occur in serum levels of high sensitivity CRP in groups of sportsmen (6) and physically active untrained subjects...
March 6, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
https://www.readbyqxmd.com/read/28255565/defining-the-long-toss-a-professional-baseball-epidemiological-study
#15
Austin V Stone, Sandeep Mannava, Anita Patel, Alejandro Marquez-Lara, Michael T Freehill
BACKGROUND: Despite widespread use of long-toss throwing in baseball as a component of arm conditioning, interval throwing programs, and rehabilitation, long-toss distance and throwing mechanics remain controversial. PURPOSE: To ascertain the perceived definition of long-toss throwing through a survey of professional pitchers, pitching coaches (PCs), and certified athletic trainers (ATCs) associated with Major League Baseball. STUDY DESIGN: Descriptive epidemiology study...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28241328/use-of-the-spencer-technique-on-collegiate-baseball-players-effect-on-physical-performance-and-self-report-measures
#16
Janine E Curcio, Matthew J Grana, Stacey England, Paige M Banyas, Benjamin D Palmer, Arielle E Placke, William A Rieck, Amber M Eade
CONTEXT: Repeated overhead throwing in baseball players alters range of motion (ROM), contributing to shoulder injury. The Spencer technique has been used, anecdotally, to reduce the effects of throwing-induced limitations in ROM. OBJECTIVE: To quantify the effects of a single administration of the Spencer technique on the ROM and performance of collegiate baseball pitchers. METHODS: Pitchers from the Seton Hill University men's baseball team were randomly assigned to 2 treatment groups: Spencer technique or sham therapy...
March 1, 2017: Journal of the American Osteopathic Association
https://www.readbyqxmd.com/read/28225709/the-relationship-between-trunk-rotation-upper-quarter-dynamic-stability-and-pitch-velocity
#17
Garrett S Bullock, Abigail C Schmitt, Patrick Chasse, Barrett A Little, Lee H Diehl, Robert J Butler
Understanding the relationship between upper quarter mobility, dynamic stability and pitching velocity may be beneficial in elucidating underlying factors that affect pitching performance. The purpose of this study was to investigate upper trunk rotation mobility and upper quarter dynamic stability and their correlation to pitch velocity in NCAA Division I collegiate pitchers. We hypothesized that collegiate pitchers with greater upper trunk rotation mobility and upper extremity dynamic stability would exhibit higher pitching velocity...
February 21, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28216208/a-rare-case-of-pediatric-lumbar-spinal-ependymoma-mimicking-meningitis
#18
Ezeali Mike Ekuma, Kiyoshi Ito, Akihiro Chiba, Yosuke Hara, Kohei Kanaya, Tetsuyoshi Horiuchi, Samuel Ohaegbulam, Kazuhiro Hongo
Spontaneous acute subarachnoid hemorrhage (SAH) from lumbar ependymoma in children is rare. We report a case of a14-year-old boy who developed sudden radicular low back pain while playing baseball. He was initially managed conservatively in a local hospital for suspected lumbar disc herniation, but later developed meningeal symptoms and fever before being referred to our hospital. There he underwent a diagnostic lumbar puncture in the emergency room; his cerebrospinal fluid suggested an SAH. Physical examination showed meningeal signs and cauda equina features...
February 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28203588/return-to-play-and-prior-performance-in-major-league-baseball-pitchers-after-repair-of-superior-labral-anterior-posterior-tears
#19
Ryan Smith, Daniel J Lombardo, Graysen R Petersen-Fitts, Charles Frank, Troy Tenbrunsel, Gannon Curtis, James Whaley, Vani J Sabesan
BACKGROUND: The published return-to-play (RTP) rates for Major League Baseball (MLB) pitchers who have undergone surgical repair of superior labrum anterior-posterior (SLAP) tears vary widely and are generally accepted to be lower in the subset of competitive throwers. The efficacy of surgical treatment for MLB players is largely unknown. PURPOSE: To examine the RTP rate and performance of MLB pitchers who have undergone SLAP tear repair between 2003 and 2010. STUDY DESIGN: Descriptive epidemiological study...
December 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28187157/distinct-eye-movement-patterns-enhance-dynamic-visual-acuity
#20
Dimitrios J Palidis, Pearson A Wyder-Hodge, Jolande Fooken, Miriam Spering
Dynamic visual acuity (DVA) is the ability to resolve fine spatial detail in dynamic objects during head fixation, or in static objects during head or body rotation. This ability is important for many activities such as ball sports, and a close relation has been shown between DVA and sports expertise. DVA tasks involve eye movements, yet, it is unclear which aspects of eye movements contribute to successful performance. Here we examined the relation between DVA and the kinematics of smooth pursuit and saccadic eye movements in a cohort of 23 varsity baseball players...
2017: PloS One
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