Astronaut Suni Williams Tests the V02max (IMAGE) NASA/Johnson Space Center Caption NASA astronaut Sunita Williams, Expedition 32 flight engineer, performs a VO2max test while using the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory. Credit NASA 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.