The Impact of Pitch Counts and Days of Rest on Performance Among Major-League Baseball Pitchers

2012 ◽  
Vol 26 (5) ◽  
pp. 1181-1187 ◽  
Author(s):  
John C. Bradbury ◽  
Sean L. Forman
Keyword(s):  
Major League Baseball ◽  
Major League ◽  
Baseball Pitchers ◽  
The Impact

scholarly journals Should We Limit Innings Pitched Following Ulnar Collateral Ligament Reconstruction in Major League Baseball Pitchers?

2016 ◽  
Vol 4 (7_suppl4) ◽  
pp. 2325967116S0010
Author(s):  
Brandon J. Erickson ◽  
Gregory Cvetanovich ◽  
Bernard R. Bach ◽  
Charles A. Bush-Joseph ◽  
Nikhil N. Verma ◽  
...  
Keyword(s):  
Ligament Reconstruction ◽  
Major League Baseball ◽  
Ulnar Collateral Ligament ◽  
Collateral Ligament ◽  
Major League ◽  
Baseball Pitchers ◽  
Ulnar Collateral Ligament Reconstruction

scholarly journals The Impact of Temperature on Major League Baseball

2013 ◽  
Vol 5 (4) ◽  
pp. 359-366 ◽  
Author(s):  
Brandon Lee D. Koch ◽  
Anna K. Panorska
Keyword(s):  
United States ◽  
Major League Baseball ◽  
The United States ◽  
Cold Weather ◽  
Baseball Game ◽  
Batting Average ◽  
Warm Weather ◽  
Major League ◽  
National League ◽  
The Impact

Abstract Major League Baseball is played from the beginning of April through the end of October each year, encompassing three of the four meteorological seasons: spring, summer, and fall. The 30 teams play in cities across the United States and Canada in many types of weather. This work studies the impact of temperature on a Major League Baseball game by examining the association between temperature and several Major League Baseball game statistics, including runs scored, batting average, slugging percentage, on-base percentage, home runs, walks, strikeouts, hit-batsmen, stolen bases, and errors. Data from 22 215 games, spanning the 2000–11 regular seasons, were studied. Temperature was categorized as “cold,” “average,” and “warm.” Analyses were performed on the following populations: all Major League Baseball games, games played in the National League, games played in the American League, and games played in 23 different stadiums that are currently being used by Major League Baseball teams. Home and away teams' performances were analyzed separately for each population of games. The results of this study show that runs scored, batting average, slugging percentage, on-base percentage, and home runs significantly increase while walks significantly decrease in warm weather compared to cold weather.

scholarly journals Magnetic Resonance Imaging Findings of the Asymptomatic Elbow Predict Injuries and Surgery in Major League Baseball Pitchers

2019 ◽  
Vol 7 (1) ◽  
pp. 232596711881841 ◽  
Author(s):  
Grant H. Garcia ◽  
Anirudh K. Gowd ◽  
Brandon C. Cabarcas ◽  
Joseph N. Liu ◽  
John R. Meyer ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Major League Baseball ◽  
Operative Procedure ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Major League ◽  
Mri Scans ◽  
Baseball Pitchers

Background: Repetitive pitching produces significant stress on the elbow that may result in structural abnormalities discernable on magnetic resonance imaging (MRI) without causing symptoms. Purpose: To determine whether there exists an association between subclinical MRI findings in asymptomatic elbows of Major League Baseball (MLB) players and future placement on the disabled list (DL) or future operative procedure. Study Design: Cohort study; Level of evidence, 3. Methods: MRI scans of the elbows of professional-level baseball pitchers, taken during routine presigning imaging at a single organization from 2005 to 2017, were retrospectively reviewed. Publicly available databases were queried to exclude pitchers with an injury before the earliest session of elbow MRI. Three blinded reviewers reviewed all MRI scans independently to evaluate for the presence of chondral damage to the joint, loose bodies, ulnar collateral ligament (UCL) heterogeneity or tears, flexor pronator mass defects, and signs of posteromedial (PM) impingement. Binary imaging findings were related to future placement on the DL for elbow complaints and future elbow surgery. Results: A total of 41 pitchers had asymptomatic MRI findings with no prior DL placement. For players who eventually went on the DL, there were a statistically greater number of players with UCL heterogeneity ( P = .021), humeral-sided partial UCL tears ( P = .031), and PM impingement ( P = .004) on preinjury MRI compared with players who remained healthy. PM impingement was related to future elbow-related surgery ( P = .003). Pitchers with UCL heterogeneity were associated with reduced career strike zone percentage, innings pitched, and fastball percentage ( P < .05 for all). Conclusion: UCL heterogeneity, PM impingement, and humeral-sided partial tears were correlated with future DL placement for elbow-related reasons in MLB pitchers. Asymptomatic PM impingement may be a precursor to future surgery.

Asymptomatic MRI findings of the elbow predict injury and surgery in Major League Baseball pitchers

2019 ◽  
Vol 28 (6) ◽  
pp. e202-e203
Author(s):  
Grant H. Garcia ◽  
Anirudh K. Gowd ◽  
Brandon C. Cabarcas ◽  
Joseph N. Liu ◽  
Anthony A. Romeo ◽  
...  
Keyword(s):  
Major League Baseball ◽  
Mri Findings ◽  
Major League ◽  
Baseball Pitchers

Treatment of Grade III Acromioclavicular Separations in Professional Baseball Pitchers: A Survey of Major League Baseball Team Physicians

2018 ◽  
Vol 47 (7) ◽  
Author(s):  
Joseph N. Liu ◽  
Grant H. Garcia ◽  
K. Durham Weeks ◽  
Jacob Joseph ◽  
Orr Limpisvasti ◽  
...  
Keyword(s):  
Major League Baseball ◽  
Professional Baseball ◽  
Major League ◽  
Baseball Pitchers ◽  
Baseball Team ◽  
Grade Iii

Changes in pitching mechanics after ulnar collateral ligament reconstruction in major league baseball pitchers

2017 ◽  
Vol 26 (8) ◽  
pp. 1307-1315 ◽  
Author(s):  
Daniel A. Portney ◽  
Jake M. Lazaroff ◽  
Lucas T. Buchler ◽  
Stephen M. Gryzlo ◽  
Matthew D. Saltzman
Keyword(s):  
Ligament Reconstruction ◽  
Major League Baseball ◽  
Ulnar Collateral Ligament ◽  
Collateral Ligament ◽  
Major League ◽  
Baseball Pitchers ◽  
Ulnar Collateral Ligament Reconstruction

Quantile Insights on Market Structure and Worker Salaries: The Case of Major League Baseball

2019 ◽  
Vol 20 (8) ◽  
pp. 1066-1087 ◽  
Author(s):  
Rodney Fort ◽  
Young Hoon Lee ◽  
Taeyeon Oh
Keyword(s):  
Empirical Investigation ◽  
Major League Baseball ◽  
Marginal Revenue ◽  
Total Revenue ◽  
Marginal Revenue Product ◽  
Major League ◽  
Independent Variable ◽  
The Impact ◽  
Do So ◽  
Revenue Product

The vast majority of the empirical investigation of player marginal revenue product (MRP) and monopsony exploitation rates (MER) implicitly assumed that MRP is constant across the revenue distribution of teams. The few works that do attempt to capture the impact of revenue variation across teams do so via independent variable specification. We bring quantile estimation to bear that allows MRP to vary across the entire revenue distribution in Major League Baseball. Completely in keeping with economic common sense, MRP increases as total revenue rises (to higher and higher quantiles). As with past findings, there is interesting MER dispersion over the length of player tenure in the league and between star and mediocre players. Heretofore unexplored, we also find interesting dispersion in MRP and MER between larger revenue and smaller revenue markets. Our results suggest that independent variable specifications overstate MRP and MER for smaller revenue teams and understate the same for larger revenue team.

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