Researchers (IMAGE) San Francisco State University Caption Assistant Professor of Kinesiology Jimmy Bagley and Irene Tobias, a postdoctoral researcher at CSU Fullerton, analyze muscle fibers. Credit Andy Galpin, CSU Fullerton Usage Restrictions None 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.