In recent years, baseball bat performance has come under scrutiny. Fans of Major League Baseball have seen homerun records broken and the governing organizations of both college and high school baseball have stepped in with tighter controls of baseball bat performance. This paper discusses a few of the ways that baseball bat performance is affected by changes in the material and physical proper...

we aimed to analyze the range of motion (rom) and internal rotation (ir) and external rotation (er) isokinetic strength according to humeral retroversion of the dominant shoulder.we included 40 elite baseball players in korea (obp group: n=20 players with careers spanning >10 years, age: 19.37±2.21 years, height: 181.00±5.41 cm, weight: 84.58±7.85 kg; bbp group: n=20 players with careers spanni...

We use a simple machine learning model, logistically-weighted regularized linear least squares regression, in order to predict baseball, basketball, football, and hockey games. We do so using only the thirty-year record of which visiting teams played which home teams, on what date, and what the final score was. No real ”statistics” are used. The method works best in basketball, likely because i...

Outcomes after lumbar disk herniation in baseball athletes are currently unknown. It has been postulated that the repetitive torque-producing motions of a baseball player may have negative implications after a disk injury. Sixty-nine lumbar disk herniations (40 treated operatively, 29 nonoperatively) in 64 professional baseball players were identified, and important outcome measures including s...

Since 1996, when the first article on pitch restriction recommendations was published, the number of research articles involving skeletally immature pitchers has increased. Potential shoulder injuries in this age group are proximal humeral epiphysiolysis, glenohumeral instability, rotator cuff dysfunction, and superior labrum anteroposterior lesions. Fatigue, improper biomechanics, and overuse ...

CONTEXT The high number of repetitions and high forces associated with overhead throwing lead to anatomical adaptations, such as humeral retrotorsion and posterior-capsule thickness, in elite and professional baseball athletes. However, little is known about the origin and progression of these changes that may account for the increasing trend of chronic shoulder injuries in youth baseball and p...

It is not known how the brain decides to act on moving objects. We demonstrated previously that neurons in the macaque supplementary eye field (SEF) reflect the rule of ocular baseball, a go/nogo task in which eye movements signal the rule-guided interpretation of the trajectory of a target. In ocular baseball, subjects must decide whether to pursue a moving spot target with an eye movement aft...

Background Identifying risk factors that contribute to shoulder and elbow pain within youth baseball players is important for improving injury prevention and rehabilitation strategies. Hypothesis Differences will exist between youth baseball players with and without a history of upper extremity pain on measures related to growth, shoulder performance, and baseball exposure. Study Design Cas...

BACKGROUND The purpose of this study was to assess major and minor league baseball players' return to professional baseball at a preinjury level or higher after surgery of the shoulder or elbow. HYPOTHESIS The majority of athletes will be able to return to their preinjury level after surgery. STUDY DESIGN Case series. METHODS Over a 4-season period, prospective injury and surgery records ...