BACKGROUND Concussions impair balance, visual acuity, and reaction time--all of which are required for high-level batting performance--but the effects of concussion on batting performance have not been reported. The authors examined this relationship between concussion and batting performance among Major League Baseball (MLB) players. HYPOTHESIS Batting performance among concussed MLB players...

Nos anos 1990 a disparidade no orçamento entre os times da Major League Baseball (MLB) causou uma queda competitividade na liga, tornando o uso de modelos estatísticos dados saída para clubes com menor orçamento. O objetivo deste artigo é aplicar metodologias mineração dados, utilizando bases MLB 1871 2019, entender quais são as estatísticas relevantes dentro do esporte e como elas se comportam...

PURPOSE Baseball requires an incredible amount of visual acuity and eye-hand coordination, especially for the batters. The learning objective of this work is to observe that traditional vision training as part of injury prevention or conditioning can be added to a team's training schedule to improve some performance parameters such as batting and hitting. METHODS All players for the 2010 to 2...

This article provides an overview of sabermetrics, the science of learning about baseball through objective evidence. Statistics and baseball have always had a strong kinship, as many famous players are known by their famous statistical accomplishments such as Joe Dimaggio’s 56-game hitting streak and Ted Williams’ .406 batting average in the 1941 baseball season. We give an overview of how one...

In this paper, we develop a hydraulic theory to describe the occurrence and structure of slugging in a confined two-layer gas–liquid flow generated by prescribed, constant, upstream volumetric flow rates in each layer. A linearized theory for the uniform flow is established, after which we use bifurcation theory to study fully non-linear periodic travelling wave structures. We find that a two-p...