High Intensity Interval Training (IMAGE) Norwegian University of Science and Technology Caption This image shows a participant in the study. Credit Andrea Hegdahl Tiltnes / NTNU Usage Restrictions Credit: Andrea Hegdahl Tiltnes / NTNU 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.