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https://www.readbyqxmd.com/read/28546875/spinal-cord-infarct-caused-from-suspected-fibrocartilaginous-embolism
#1
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
#2
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
#3
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
#4
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
https://www.readbyqxmd.com/read/28530502/the-effect-of-stride-length-and-lateral-pelvic-tilt-on-elbow-torque-in-youth-baseball-pitchers
#5
Noah X Tocci, David R Howell, Dai Sugimoto, Corey Dawkins, Amy Whited, Donald Bae
High elbow torque during a pitch may contribute to injury risk. Our objective was to determine the pitch mechanics associated with elbow varus torque in youth baseball pitchers. Eighteen male youth pitchers (age=15.5±1.6 years) threw three fastballs and three change-ups from a windup position while undergoing three-dimensional kinematic analysis. Independent variables included ball release point distance, stride length, lateral pelvic tilt, and ball velocity. Two multiple regression models, separated by pitch type (fastball, change-up) were used to determine the association of independent variables with peak varus torque at the elbow...
May 22, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28513271/college-pitchers-demonstrate-directional-differences-in-shoulder-joint-position-sense-compared-to-controls
#6
John Andrew Badagliacco, Andrew Karduna
CONTEXT: The relationship between overhead throwing and its effect on proprioception is not well understood. It is important to gain a better understanding of how these are related to protect overhead athletes from an increased risk of injury. OBJECTIVE: To investigate proprioceptive alterations in the overhead thrower's shoulder. DESIGN: Cross-Sectional Study. Independent variables are: limb (dominant and non-dominant), group (thrower or control), and target angle...
May 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28510477/performance-based-outcomes-after-anterior-cruciate-ligament-reconstruction-in-professional-athletes-differ-between-sports
#7
Harry T Mai, Danielle S Chun, Andrew D Schneider, Brandon J Erickson, Ryan D Freshman, Benjamin Kester, Nikhil N Verma, Wellington K Hsu
BACKGROUND: Excellent outcomes have been reported for anterior cruciate ligament (ACL) reconstruction (ACLR) in professional athletes in a number of different sports. However, no study has directly compared these outcomes between sports. PURPOSE: To determine if differences in performance-based outcomes exist after ACLR between professional athletes of each sport. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: National Football League (NFL), National Basketball Association (NBA), National Hockey League (NHL), and Major League Baseball (MLB) athletes undergoing primary ACLR for an acute rupture were identified through an established protocol of injury reports and public archives...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28508338/fluid-balance-in-team-sport-athletes-and-the-effect-of-hypohydration-on-cognitive-technical-and-physical-performance
#8
REVIEW
Ryan P Nuccio, Kelly A Barnes, James M Carter, Lindsay B Baker
Sweat losses in team sports can be significant due to repeated bursts of high-intensity activity, as well as the large body size of athletes, equipment and uniform requirements, and environmental heat stress often present during training and competition. In this paper we aimed to: (1) describe sweat losses and fluid balance changes reported in team sport athletes, (2) review the literature assessing the impact of hypohydration on cognitive, technical, and physical performance in sports-specific studies, (3) briefly review the potential mechanisms by which hypohydration may impact team sport performance, and (4) discuss considerations for future directions...
May 15, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28504915/prevalence-of-os-styloideum-in-national-hockey-league-players
#9
Harry G Greditzer, Ian D Hutchinson, Christian S Geannette, Robert N Hotchkiss, Bryan T Kelly, Hollis G Potter
BACKGROUND: Os styloideum describes an accessory carpal ossicle between the trapezoid, the capitate, and the second and third metacarpals. Injuries to this tissue have been described as part of the carpal boss syndrome. While the etiology of os styloideum remains uncertain, it may represent a physiologic response to altered loading forces in the wrist, similar to the development of cam-type deformity in the hips of ice hockey players or the Bennett lesion in the shoulders of baseball pitchers...
May 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28500954/finger-forces-in-fastball-baseball-pitching
#10
Hiroshi Kinoshita, Satoshi Obata, Daiki Nasu, Koji Kadota, Tomoyuki Matsuo, Glenn S Fleisig
Forces imparted by the fingers onto a baseball are the final, critical aspects for pitching, however these forces have not been quantified previously as no biomechanical technology was available. In this study, an instrumented baseball was developed for direct measurement of ball reaction force by individual fingers and used to provide fundamental information on the forces during a fastball pitch. A tri-axial force transducer with a cable having an easily-detachable connector were installed in an official baseball...
May 10, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28499094/the-epidemiology-and-effect-of-sliding-injuries-in-major-and-minor-league-baseball-players
#11
Christopher L Camp, Frank C Curriero, Keshia M Pollack, Stephanie W Mayer, Andrea M Spiker, John D'Angelo, Struan H Coleman
BACKGROUND: Although sliding occurs frequently in professional baseball, little is known about the epidemiology and effect of injuries that occur during sliding in this population of elite athletes. PURPOSE: To describe the incidence and characteristics of sliding injuries, determine their effect in terms of time out of play, and identify common injury patterns that may represent appropriate targets for injury prevention programs in the future. STUDY DESIGN: Descriptive epidemiologic study...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28492862/establishing-baseline-normative-values-for-the-child-sport-concussion-assessment-tool
#12
M Alison Brooks, Traci R Snedden, Benjamin Mixis, Scott Hetzel, Timothy A McGuine
Importance: The Child Sport Concussion Assessment Tool (SCAT3) is a postconcussion sideline assessment tool measuring symptoms, cognition, and balance in preadolescent children. Minimal normative baseline data exist to aid decision making in clinical and athletic settings. Objective: To collect normative baseline data for the Child SCAT3 in a large cohort of young athletes. Design, Setting, and Participants: A cross-sectional study was conducted from May 31 to August 12, 2014, at various sporting events (basketball, soccer, baseball, and swimming) in Central Wisconsin among children 5 to 13 years of age who were English-speaking and did not report a lower leg injury within the past 2 months or a concussion within the past month...
May 8, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28486333/the-relationship-between-the-push-off-ground-reaction-force-and-ball-speed-in-high-school-baseball-pitchers
#13
Sakiko Oyama, Joseph B Myers
Baseball pitching is a sequential movement that requires transfer of momentum from the lower extremity to the throwing arm. Therefore, the ground reaction force (GRF) during push off is suggested to play a roll in production of ball speed. The purpose of this study was to investigate the correlation between GRF characteristics during push off and ball speed in high school baseball pitchers. A total of 52 pitchers performed fast pitches from an indoor pitching mound. A force plate embedded in an indoor mound was used to capture the push off GRF...
May 5, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28478963/shoulder-and-elbow-pain-in-elementary-school-baseball-players-the%C3%A2-results-from-a-nation-wide-survey-in-japan
#14
Kenji Takagishi, Tetsuya Matsuura, Takashi Masatomi, Etsuo Chosa, Tsuyoshi Tajika, Mikihiko Watanabe, Tetsu Iwama, Toshiro Otani, Katsunori Inagaki, Hiroyasu Ikegami, Mitsuhiro Aoki, Ko Kato, Toru Okuwaki, Koichi Sairyo, Yasushi Kameyama, Akira Maeda, Moroe Beppu
BACKGROUND: Despite recommendations on how to prevent baseball injuries in youths by the Japanese Society of Clinical Sports Medicine, shoulder and elbow pain still frequently occurs in young baseball players. We conducted a questionnaire survey among baseball players at elementary schools across the country to understand the practice conditions of players, examining the risk factors of shoulder and elbow pain in baseball players. METHODS: The questionnaire survey was conducted among elementary school baseball players as members of the Baseball Federation of Japan in September 2015...
May 3, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28451622/the-effects-of-elbow-bracing-on-medial-elbow-joint-space-gapping-associated-with-repetitive-throwing-in-high-school-baseball-players
#15
Hiroshi Hattori, Kiyokazu Akasaka, Takahiro Otsudo, Keiichi Takei, Mitsuru Yamamoto
BACKGROUND: Throwing athletes risk medial elbow injury from extreme valgus stress generated across the medial elbow during throwing. Braces have been developed to protect the elbow joint; however, no previous study has investigated the effects of elbow bracing on medial elbow joint space gapping associated with repetitive throwing. HYPOTHESIS/PURPOSE: The purpose of this study was to investigate the effects of elbow bracing on medial elbow joint space gapping during repetitive throwing...
April 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28451602/exceeding-pitch-count-recommendations-in-little-league-baseball-increases-the-chance-of-requiring-tommy-john-surgery-as-a-professional-baseball-pitcher
#16
Brandon J Erickson, Peter N Chalmers, Michael J Axe, Anthony A Romeo
BACKGROUND: Empirical evidence has suggested a connection between youth pitch counts and subsequent elbow injury. For players within the Little League World Series (LLWS), detailed historical player data are available. Some of these players progress to both professional play and require an ulnar collateral ligament reconstruction (UCLR). PURPOSE: To determine the percentage of LLWS pitchers who proceed to play professional (major or minor league) baseball, the rate of UCLR in former LLWS pitchers who played professional baseball, and the risk to those who exceeded current pitch count recommendations while playing in the LLWS...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28451598/epidemiology-and-impact-of-abdominal-oblique-injuries-in-major-and-minor-league-baseball
#17
Christopher L Camp, Stan Conte, Steven B Cohen, Matthew Thompson, John D' Angelo, Joseph T Nguyen, Joshua S Dines
BACKGROUND: Oblique injuries are known to be a common cause of time out of play for professional baseball players, and prior work has suggested that injury rates may be on the rise in Major League Baseball (MLB). PURPOSE: To better understand the current incidence of oblique injuries, determine their impact based on time out of play, and to identify common injury patterns that may guide future injury prevention programs. STUDY DESIGN: Descriptive epidemiological study...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28430758/the-refractive-error-of-professional-baseball-players
#18
Daniel M Laby, David G Kirschen
PURPOSE: High levels of visual acuity are required to hit a baseball effectively. Research has shown that any decrease in vision is likely caused by low-order optical aberrations. This study is designed to validate the SVOne autorefractor, and describe the amount and type, of low-order optical aberrations present in a large cohort of professional baseball players. METHODS: A retrospective chart review on the 608 Major League Baseball players evaluated during the 2016 Spring Training Season was performed...
May 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28421395/clinical-interpretation-of-asymptomatic-medial-collateral-ligament-injury-observed-on-magnetic-resonance-imaging-in-adolescent-baseball-players
#19
Kenta Tanaka, Yoshikazu Okamoto, Takeshi Makihara, Kiyoshi Maehara, Tomohiro Yoshizawa, Manabu Minami, Masashi Yamazaki
PURPOSE: Magnetic resonance imaging (MRI) of medial collateral ligament (MCL) injury of the elbow was often observed in asymptomatic adolescent baseball players. We aimed to clarify the clinical interpretation of "asymptomatic MCL injury observed on MRI" by comparing MRI, ultrasonography (US), and physical findings. MATERIALS AND METHODS: Sixty-four asymptomatic adolescent baseball players (mean 11.2 years) were enrolled. An open-type 0.2T MRI was used. MCL function was evaluated by measuring the opening of the ulnohumeral joint using US...
April 18, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28402756/effectiveness-of-manual-therapy-and-stretching-for-baseball-players-with-shoulder-range-of-motion-deficits
#20
Lane B Bailey, Charles A Thigpen, Richard J Hawkins, Paul F Beattie, Ellen Shanley
BACKGROUND: Baseball players displaying deficits in shoulder range of motion (ROM) are at increased risk of arm injury. Currently, there is a lack of consensus regarding the best available treatment options to restore shoulder ROM. HYPOTHESIS: Instrumented manual therapy with self-stretching will result in clinically significant deficit reductions when compared with self-stretching alone. STUDY DESIGN: Controlled laboratory study. METHODS: Shoulder ROM and humeral torsion were assessed in 60 active baseball players (mean age, 19 ± 2 years) with ROM deficits (nondominant - dominant, ≥15°)...
April 1, 2017: Sports Health
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