Cycling Study Photo (IMAGE) Experimental Biology Caption The University of Texas at Austin Human Performance Lab studied health and performance benefits associated with four-second bursts of high-intensity exercise. Credit Remzi Satiroflu 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.