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https://www.readbyqxmd.com/read/29768026/return-to-play-and-performance-outcomes-of-professional-athletes-in-north-america-after-hip-arthroscopy-from-1999-to-2016
#1
Michael S Schallmo, Thomas H Fitzpatrick, Hunter B Yancey, Alejandro Marquez-Lara, T David Luo, Allston J Stubbs
BACKGROUND: The effect of hip arthroscopy on athletic performance compared with preinjury levels for professional athletes in different sports remains unknown. In addition, while return rates have been reported for professional baseball, football, and hockey players, return rates have not been reported for professional basketball players. HYPOTHESIS: Professional athletes in 4 major North American sports would be able to return to their sport and preoperative level of performance at a high rate after arthroscopic hip surgery...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29738598/epidemiology-workload-and-performance-of-major-league-baseball-pitchers-placed-on-the-disabled-list
#2
Nathan E Marshall, Toufic R Jildeh, Kelechi R Okoroha, Ankur Patel, Vasilios Moutzouros, Eric C Makhni
There is limited information on the effect of pitcher workload, pitch type, and performance of Major League Baseball pitchers placed on the disabled list (DL). This study evaluated demographic, performance, workload, and injury data of 330 Major League Baseball pitchers with 454 injuries who were placed on the DL during the 2014 and 2015 seasons. Upper extremity, lower extremity, core, hip/groin, and other injuries were analyzed, and injury year data were compared with career data as well as against other injury groups...
May 8, 2018: Orthopedics
https://www.readbyqxmd.com/read/29629813/summative-report-on-time-out-of-play-for-major-and-minor-league-baseball-an-analysis-of-49-955-injuries-from-2011-through-2016
#3
Christopher L Camp, Joshua S Dines, Jelle P van der List, Stan Conte, Justin Conway, David W Altchek, Struan H Coleman, Andrew D Pearle
BACKGROUND: Recent epidemiologic reports have demonstrated rising injury rates in Major League Baseball (MLB) and Minor League Baseball (MiLB). Although several studies have recently been published on specific injuries, the majority of injuries have not yet been formally studied. PURPOSE: The purpose of this study is to (1) generate a summative analysis of all injuries that occur in MLB and MiLB, (2) identify the 50 most common injuries, and (3) generate focused reports and fact sheets on the characteristics of each of those diagnoses...
April 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29543598/decreased-hip-internal-rotation-increases-the-risk-of-back-and-abdominal-muscle-injuries-in-professional-baseball-players-analysis-of-258-player-seasons
#4
Christopher L Camp, Andrea M Spiker, John M Zajac, Dave Pearson, Alec M Sinatro, Joshua S Dines, Anil S Ranawat, Struan H Coleman
INTRODUCTION: The relationship of hip range of motion (ROM) to shoulder, elbow, abdominal, and back injuries remains undefined. METHODS: We assessed hip ROM on players reporting to Major League Spring Training for an organization over six seasons (2010 to 2015). Hip ROM was correlated with player abdominal, back, shoulder, and elbow injury status for those seasons using multivariate binomial logistic regression analysis. RESULTS: A total of 258 player-seasons (129 pitchers and 129 position players) resulted in 20 back and 35 abdominal injuries across all players and 28 elbow and 25 shoulder injuries in pitchers...
March 14, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29435468/the-impact-of-workload-on-the-evolution-of-hip-internal-and-external-rotation-in-professional-baseball-players-over-the-course-of-the-season
#5
Christopher L Camp, John M Zajac, Dave Pearson, Dean Wang, Alec S Sinatro, Anil S Ranawat, Joshua S Dines, Struan H Coleman
Background: Although restricted hip range of motion (ROM) is associated with an increased risk for injuries in baseball players, the evolution of hip ROM over the season remains undefined. Hypothesis: Hip ROM profiles would be symmetric between hips and positions (pitchers vs position players) but would decrease from preseason to postseason. Additionally, it was hypothesized that this decrease in motion would correlate with workload. Study Design: Cohort study; Level of evidence, 2...
February 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29364042/correlation-among-y-balance-test-lower-quarter-composite-scores-hip-musculoskeletal-characteristics-and-pitching-kinematics-in-ncaa-division-i-baseball-pitchers
#6
Adam Culiver, J Craig Garrison, Kalyssa M Creed, John E Conway, Shiho Goto, Sherry Werner
CONTEXT: Numerous studies have reported kinematic data on baseball pitchers using 3D motion analysis, but no studies to date have correlated this data with clinical outcome measures. OBJECTIVE: To examine the relationship among Y Balance Test-Lower Quarter (YBT-LQ) composite scores, musculoskeletal characteristics of the hip and pitching kinematics in NCAA Division I baseball pitchers. DESIGN: Cross-sectional. SETTING: 3D motion analysis laboratory...
January 24, 2018: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29330669/hip-and-groin-injuries-in-baseball-players
#7
REVIEW
Ryan A Mlynarek, Struan H Coleman
PURPOSE OF REVIEW: To discuss the clinical significance of the most common hip and groin injuries in baseball players, as well as an algorithmic approach to diagnosis and treatment of these injuries. RECENT FINDINGS: (a) Limitations in throwing velocity, pitch control, and bat swing speed may be secondary to decreased mobility and strength within the proximal kinetic chain, which must harness power from the lower extremities and core. (b) Approximately 5.5% of all baseball injuries per year involve the hip/groin and may lead to a significant amount of time spent on the disabled list...
March 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29283678/pitch-volume-and-glenohumeral-and-hip-motion-and-strength-in-youth-baseball-pitchers
#8
Josie L Harding, Kelsey J Picha, Kellie C Huxel Bliven
CONTEXT:   Increased pitch volume and altered glenohumeral (GH) and hip range of motion (ROM) and strength contribute to injury risk in baseball pitchers. Although these factors affect one another, whether they are related is unknown. OBJECTIVE:   To examine relationships among cumulative and seasonal pitch volume, ROM, and strength of the GH and hip joints in youth baseball pitchers. DESIGN:   Cross-sectional study. SETTING:   Baseball practice facilities...
January 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29225021/implications-of-core-and-hip-injuries-on-major-league-baseball-pitchers-on-the-disabled-list
#9
Nathan E Marshall, Toufic R Jildeh, Kelechi R Okoroha, Ankur Patel, Vasilios Moutzouros, Eric C Makhni
PURPOSE: To investigate the frequency of core and hip injuries in Major League Baseball (MLB) pitchers and their impact on performance, workload, and pitch type. METHODS: Demographic, performance data, and injury data were acquired for 330 MLB pitchers with 454 injuries placed on the disabled list (DL) from 2014 to 2015 seasons. Core and hip/groin injuries were analyzed in which injury year data were compared with career data and against other injury groups. RESULTS: Core injuries represented 14% of all injuries and hip/groin injuries represented 7%...
February 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29170690/correlation-between-the-functional-movement-screen-and-hip-mobility-in-ncaa-division-ii-athletes
#10
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
#11
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...
November 2017: Tohoku Journal of Experimental Medicine
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...
February 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28632063/kinetic-analysis-of-the-lower-limbs-in-baseball-tee-batting
#13
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...
September 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28632045/comparison-of-crossover-and-jab-step-start-techniques-for-base-stealing-in-baseball
#14
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...
November 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28532867/ultrasound-study-of-elbow-ulnar-collateral-ligament-changes-in-collegiate-baseball-players-a-pilot-study
#15
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/28504915/prevalence-of-os-styloideum-in-national-hockey-league-players
#16
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...
September 2017: Sports Health
https://www.readbyqxmd.com/read/28358221/descriptive-epidemiology-of-non-time-loss-injuries-in-collegiate-and-high-school-student-athletes
#17
Zachary Y Kerr, Robert C Lynall, Karen G Roos, Sara L Dalton, Aristarque Djoko, Thomas P Dompier
CONTEXT:   Research on non-time-loss (NTL) injuries, which result in less than 24 hours of restriction from participation, is limited. OBJECTIVE:   To describe the epidemiology of NTL injuries among collegiate and high school student-athletes. DESIGN:   Descriptive epidemiology study. SETTING:   Aggregate injury and exposure data collected from a convenience sample of National College Athletic Association varsity teams and 147 high schools in 26 states...
May 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28157450/changes-in-lower-extremity-kinematics-and-temporal-parameters-of-adolescent-baseball-pitchers-during-an-extended-pitching-bout
#18
Stacey M Kung, Sarah P Shultz, Andreas Kontaxis, Andrew P Kraszewski, Mandi W Gibbons, Sherry I Backus, Philip W Fink, Stephen Fealy, Howard J Hillstrom
BACKGROUND: Few studies have investigated detailed 3-dimensional lower extremity kinematics during baseball pitching in adolescent athletes during extended play. Changes in these parameters may affect performance outcomes. PURPOSE: To investigate whether adolescent baseball pitchers experience changes in lower extremity kinematics and event timing during a simulated game-length pitching bout. STUDY DESIGN: Descriptive laboratory study. METHODS: Twelve male adolescent pitchers (aged 14-16 years) threw 6 sets of 15 fastball pitches from an artificial pitching mound to a target at regulation distance...
April 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27713579/differences-in-hip-range-of-motion-among-collegiate-pitchers-when-compared-to-youth-and-professional-baseball-pitcher-data
#19
Scott W Cheatham, Kathryn Kumagai Shimamura, Morey J Kolber
The purpose of this study was to measure passive hip internal (IR) and external rotation (ER) range of motion (ROM) in collegiate baseball pitchers and compare to published youth and professional values. Measures were taken on the bilateral hips of 29 participants (mean age 20.0±1.4, range 18-22 years). Results identified no significant differences between the stance and stride hip in collegiate right handed pitchers for IR (p= 0.22, ES 0.23) and ER (p=.08, ES= 0.25). There was no significant difference in left handed pitchers for IR (p= 0...
September 2016: Journal of the Canadian Chiropractic Association
https://www.readbyqxmd.com/read/27604190/physical-risk-factors-for-a-medial-elbow-injury-in-junior-baseball-players-a-prospective-cohort-study-of-353-players
#20
Jun Sakata, Emi Nakamura, Makoto Suzukawa, Atsushi Akaike, Kuniaki Shimizu
BACKGROUND: The physical risk factors for a medial elbow injury in junior baseball players are unknown. PURPOSE: To identify the risk factors for an initial medial elbow injury in junior baseball players. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: Junior baseball players (aged 6-12 years) without a history of elbow pain underwent a clinical assessment, ultrasonography, and physical function measurements before the baseball season started...
January 2017: American Journal of Sports Medicine
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