Aerobic Fitness- Aerobic fitness will be determined using a treadmill-based graded exercise test with analysis of expired gases. The test will consist of 2-3 increasingly more challenging stages of walking/running (through the addition of speed or incline) at a submaximal intensity. The heart rate and oxygen consumption data collected will be used to extrapolate the data to estimate maximal values. All aerobic fitness tests will be administered under the supervision of a Canadian Society for Exercise Physiology Certified Exercise Physiologist. Prior to any exercise all participants will be required to complete a Physical Activity Readiness Questionnaire (PAR-Q+) safe exercise participation screening form for known or suspected chronic disease risk factors (this tool is used for screening purposes only).