For many sports, an individual’s VO2 max is a key determinant of performance and is considered the ‘gold-standard’ measure of cardio-respiratory fitness. VO2 max is relevant to any endurance athlete interested in accurately measuring their current level of aerobic fitness. In this assessment, we utilize a metabolic gas analysis system during an incremental ramp assessment. From the results, we can prescribe three key aerobic based training zones specifically relevant the individual.