VO2 Max is the maximum amount of oxygen your body can utilize. As we increase intensity, our body needs to produce more energy. Like a combustion engine, it needs fuel (e.g. carbs or fat) and oxygen to facilitate the “burning” process. As we increase the intensity that we perform a given task (e.g. running, cycling, rowing, etc.) we increase our demand for both fuel and oxygen. Eventually, we will reach a physiological limit where our oxygen utilization starts to plateau – this is our VO2 Max. Why is it important?