Design and run user studies related to cardiovascular fitness & energy expenditure, including calories burned, metabolic rate, aerobic fitness level measurement/tracking and other key physiological measurements. Candidate will be knowledgeable about the physiological effects being measured and how to avoid potential inaccuracy and experimental error due DOE flaws and/or reference monitor (i.e. metabolic cart, etc.) usage issues. The role will need to apply relevant knowledge to the design of products and their testing/validation through user studies.