Brad Cardinal, Oregon State University (IMAGE) Oregon State University Caption Brad Cardinal is a professor of exercise and sport science at OSU and a national expert on the benefits of physical activity. Credit Photo: Katy Weaver 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.