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https://www.readbyqxmd.com/read/28644935/triquetrohamate-impaction-syndrome-an-unrecognized-cause-of-ulnar-sided-wrist-pain-its-presentation-further-defined
#1
Gary M Lourie, Colin Booth, Ross Nathan
BACKGROUND: The aim of this review was to further define the clinical condition triquetrohamate (TH) impaction syndrome (THIS), an entity underreported and missed often. Its presentation, physical findings, and treatment are presented. METHODS: Between 2009 and 2014, 18 patients were diagnosed with THIS. The age, sex, hand involved, activity responsible for symptoms, and defining characteristics were recorded. The physical findings, along with ancillary studies, were reviewed...
July 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28644678/professional-athletes-return-to-play-and-performance-after-operative-repair-of-an-achilles-tendon-rupture
#2
David P Trofa, J Chance Miller, Eugene S Jang, Denzel R Woode, Justin K Greisberg, J Turner Vosseller
BACKGROUND: Most Achilles tendon ruptures are sports related. However, few studies have examined and compared the effect of surgical repair for complete ruptures on return to play (RTP), play time, and performance across multiple sports. PURPOSE: To examine RTP and performance among professional athletes after Achilles tendon repair and compare pre- versus postoperative functional outcomes of professional athletes from different major leagues in the United States...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28638354/investigating-team-coordination-in-baseball-using-a-novel-joint-decision-making-paradigm
#3
Rob Gray, Nancy J Cooke, Nathan J McNeese, Jaimie McNabb
A novel joint decision making paradigm for assessing team coordination was developed and tested using baseball infielders. Balls launched onto an infield at different trajectories were filmed using four video cameras that were each placed at one of the typical positions of the four infielders. Each participant viewed temporally occluded videos for one of the four positions and were asked to say either "ball" if they would attempt to field it or the name of the bag that they would cover. The evaluation of two experienced coaches was used to assign a group coordination score for each trajectory and group decision times were calculated...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28632063/kinetic-analysis-of-the-lower-limbs-in-baseball-tee-batting
#4
Kazumichi Ae, Sekiya Koike, Norihisa Fujii, Michiyoshi Ae, Takashi Kawamura
The purpose of this study was to investigate effects of the ground reaction forces on the rotation of the body as a whole and on the joint torques of the lower limbs associated with trunk and pelvic rotation in baseball tee batting. A total of 22 male collegiate baseball players participated in this study. Three-dimensional coordinate data were acquired by a motion capture system (250 Hz), and ground reaction forces of both legs were measured with three force platforms (1,000 Hz). Kinetic data were used to calculate the moment about the vertical axis through the body's centre of mass resulting from ground reaction forces, as well as to calculate the torque and mechanical work in the lower limb joints...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28632054/middle-finger-and-ball-movements-around-ball-release-during-baseball-fastball-pitching
#5
Tomoyuki Matsuo, Tsutomu Jinji, Daisaku Hirayama, Daiki Nasu, Hiroki Ozaki, Daisuke Kumagawa
The objectives of this study were to investigate middle finger movements and dynamics of ball movements around the instant of ball release during baseball pitching. Baseball pitching from an indoor mound among 14 semi-professional pitchers was captured using a motion capture system with 16 high-speed cameras (1,000 Hz). Kinematics of middle finger joints, ball rotation, and force applied to the ball were calculated. The proximal and distal interphalangeal joints continued to extend until the instant of ball release, then abruptly flexed...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28632045/comparison-of-crossover-and-jab-step-start-techniques-for-base-stealing-in-baseball
#6
Tomohisa Miyanishi, So Endo, Ryu Nagahara
Base stealing is an important tactic for increasing the chance of scoring in baseball. This study aimed to compare the crossover step (CS) and jab step (JS) starts for base stealing start performance and to clarify the differences between CS and JS starts in terms of three-dimensional lower extremity joint kinetics. Twelve male baseball players performed CS and JS starts, during which their motion and the force they applied to the ground were simultaneously recorded using a motion-capture system and two force platforms...
February 24, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28619609/recommendations-to-prevent-shoulder-and-elbow-injuries-due-to-over-training-in-elementary-school-baseball-players
#7
EDITORIAL
Kenji Takagishi
No abstract text is available yet for this article.
June 12, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28605316/examining-differences-in-movement-competency-in-professional-baseball-players-born-in-the-united-states-and-dominican-republic
#8
Garrett S Bullock, Taylor Chapman, Thomas Joyce, Robert Prengle, Taylor Stern, Robert J Butler
CONTEXT: Dominican Republic (DR) players have different training norms, which can affect their resiliency and performance. The variance among DR players training regimens may be influenced by the degree of training incorporating fundamental movement patterns. OBJECTIVE: To examine differences in fundamental movement patterns in United States (US) versus DR born professional baseball players. PARTICIPANTS: 142 players (76 DR and 66 US born) that were recently selected by an MLB team...
June 12, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28604051/safe-or-out-does-the-location-of-attention-affect-judgments-at-first-base-in-baseball
#9
Ralph S Redden, Ghislain d'Entremont, Raymond M Klein
Titchener's law of prior entry states that attended stimuli are perceived before unattended stimuli. Prior entry effects measured with visual stimuli have been generated with both endogenous and exogenous attentional deployment (e.g., by Shore, Spence, & Klein, 2001). In theory, the endogenous form of prior entry may have implications for baseball umpire judgments. Conventionally, umpires are instructed to first attend to the ball when it is hit into play; however, where they attend at the imperative instant of the play at first base can vary between individuals and across scenarios...
June 2017: Canadian Journal of Experimental Psychology, Revue Canadienne de Psychologie Expérimentale
https://www.readbyqxmd.com/read/28594515/cervical-spine-injuries-in-the-athlete
#10
Gregory D Schroeder, Alexander R Vaccaro
Cervical spine injuries are common and range from relatively minor injuries, such as cervical muscle strains, to severe, life-threatening cervical fractures with spinal cord injuries. Although cervical spine injuries are most common in athletes who participate in contact and collision sports, such as rugby and American football, they also have been reported in athletes who participate in noncontact sports, such as baseball, gymnastics, and diving. Cervical spine injuries in athletes are not necessarily the result of substantial spine trauma; some athletes have chronic conditions, such as congenital stenosis, that increase their risk for a serious cervical spine injury after even minor trauma...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28590522/adolescents-smokeless-tobacco-susceptibility-by-perceived-professional-baseball-players-use
#11
Benjamin W Chaffee, Elizabeth T Couch, Stuart A Gansky
OBJECTIVE: Measure associations between adolescent baseball players' perceptions of smokeless tobacco (ST) use by professional baseball players and those adolescents' actual ST use and susceptibility. METHODS: Male baseball players (N = 360) at 25 rural California high schools completed tobacco behavior surveys and reported how likely they believed it was their favorite major league baseball player used ST. We compared ST use and, among ST never-users, willingness and expectations to use ST, according to perceived favorite player's use...
June 7, 2017: Journal of Public Health Dentistry
https://www.readbyqxmd.com/read/28589162/age-specific-prevalence-and-clinical-characteristics-of-humeral-medial-epicondyle-apophysitis-and-osteochondritis-dissecans-ultrasonographic-assessment-of-4249-players
#12
Kenichi Otoshi, Shinichi Kikuchi, Kinshi Kato, Ryohei Sato, Takahiro Igari, Takahiro Kaga, Shinichi Konno
BACKGROUND: Traction apophysitis of medial epicondyle (MEC) lesions and osteochondritis dissecans (OCD) of the capitellum are common elbow injuries in adolescent baseball players. However, the age-specific prevalence of these pathologies and their influence on elbow pain remain unknown. PURPOSE: To investigate the age-specific prevalence of each MEC lesion and capitellar OCD and to identify the incidence of elbow pain in each condition. STUDY DESIGN: Descriptive epidemiology study...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28577222/relationship-between-the-relative-age-effect-and-lengths-of-professional-careers-in-male-japanese-baseball-players-a-retrospective-analysis
#13
Hiroki Nakata
BACKGROUND: The mechanisms underlying the relative age effect in sport events have been investigated for more than two decades. The present study focused on the relationship between the relative age effect and lengths of professional careers among professional male Japanese baseball players. METHODS: The birth dates of players and lengths of professional careers were collected from an official publication, and data were divided into four quarters (Q1: April-June; Q2: July-September; Q3: October-December; Q4: January-March of the following year) grouped by 3 years...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28575638/elbow-injuries-in-professional-baseball-epidemiological-findings-from-the-major-league-baseball-injury-surveillance-system
#14
Michael G Ciccotti, Keisha M Pollack, Michael C Ciccotti, John D'Angelo, Christopher S Ahmad, David Altchek, James Andrews, Frank C Curriero
BACKGROUND: Elbow injuries cause significant disability for the throwing athlete. Scant data are available on the distribution and characteristics of these injuries in elite baseball players. No study exists that focuses solely on the epidemiological characteristics of elbow injuries in professional baseball players using a comprehensive injury surveillance system. HYPOTHESIS: Professional baseball players have a high occurrence of elbow injuries influenced by factors including length of time playing, time period within the annual baseball season, and specific position played...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28571923/talar-head-fracture-in-a-professional-baseball-player-a-case-report
#15
Nobuto Kitamura, Masashi Yokota, Teruhiko Nakagawa, Kazunori Yasuda, Masamitsu Tsuchiya
No abstract text is available yet for this article.
May 29, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28567429/are-the-current-little-league-pitching-guidelines-adequate-a-single-season-prospective-mri-study
#16
Andrew V Pytiak, Phillip Stearns, Tracey P Bastrom, Jerry Dwek, Peter Kruk, Joanna H Roocroft, Andrew T Pennock
BACKGROUND: Little League throwing guidelines have recently been implemented in an attempt to lessen the growing number of elbow injuries occurring in youth baseball players. HYPOTHESIS/PURPOSE: The purpose of this study was to examine pre- and postseason changes seen on magnetic resonance imaging (MRI) in youth baseball players' elbows in an attempt to identify risk factors for pain and MRI abnormalities, with a particular focus on the current Little League guidelines...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28546875/spinal-cord-infarct-caused-from-suspected-fibrocartilaginous-embolism
#17
Ayham M Alkhachroum, Danielle Weiss, Alan Lerner, Michael A De Georgia
INTRODUCTION: We report a case of spinal cord infarct as a result of suspected fibrocartilaginous embolism (FCE). CASE PRESENTATION: A 23-year-old man presented with sudden onset cervical and upper back pain followed by progressive weakness in his extremities after throwing a baseball. History, neurologic examination and spinal cord imaging were consistent with spinal cord infarct. We believe the cause was from FCE. DISCUSSION: Though rare, physicians should be familiar with this diagnosis and the proposed mechanisms...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28545717/preseason-screening-of-shoulder-range-of-motion-and-humeral-retrotorsion-does-not-predict-injury-in-high-school-baseball-players
#18
Sakiko Oyama, Elizabeth E Hibberd, Joseph B Myers
BACKGROUND: Shoulder and elbow injuries are commonplace in high school baseball. Although altered shoulder range of motion (ROM) and humeral retrotorsion angles have been associated with injuries, the efficacy of preseason screening of these characteristics remains controversial. METHODS: We conducted preseason screenings for shoulder internal and external rotation ROM and humeral retrotorsion on 832 high school baseball players and tracked their exposure and incidence on throwing-related shoulder and elbow injuries during a subsequent season...
May 22, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28535098/ball-contact-injuries-in-11-national-collegiate-athletic-association-sports-the-injury-surveillance-program-2009-2010-through-2014-2015
#19
Melissa A Fraser, Dustin R Grooms, Kevin M Guskiewicz, Zachary Y Kerr
CONTEXT:   Surveillance data regarding injuries caused by ball contact in collegiate athletes have not been well examined and are mostly limited to discussions of concussions and catastrophic injuries. OBJECTIVE:   To describe the epidemiology of ball-contact injuries in 11 National Collegiate Athletic Association (NCAA) sports during the 2009-2010 through 2014-2015 academic years. DESIGN:   Descriptive epidemiology study. SETTING:   Convenience sample of NCAA programs in 11 sports (men's football, women's field hockey, women's volleyball, men's baseball, women's softball, men's and women's basketball, men's and women's lacrosse, and men's and women's soccer) during the 2009-2010 through 2014-2015 academic years...
May 23, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28532867/ultrasound-study-of-elbow-ulnar-collateral-ligament-changes-in-collegiate-baseball-players-a-pilot-study
#20
Johnathan Erb, Heather Sherman, Sydney Williard, Julien Bui, Aimie Kachingwe
OBJECTIVE: To assess changes in elbow ulnar collateral ligament length in college baseball pitchers over the course of a single season. DESIGN: Cohort Feasibility Study. METHODS: Diagnostic ultrasound was used to assess both the dominant and non-dominant medial elbow joint space in four pitchers and five fielders and compared to in-game pitching data. Shoulder, elbow, wrist, hip, knee, and ankle range of motion measurements were also taken...
April 2017: Journal of Bodywork and Movement Therapies
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