MLB Infographic (IMAGE) Penn State Caption David E. Conroy, Penn State professor of kinesiology, said "Research exists that shows how having extra weight can help with certain aspects of baseball." Credit Christie Clancy/Penn State Usage Restrictions Non commercial use only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.