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If you are an athlete, coach, trainer, or somebody who’s interested in using data to manage health and fitness, you may have heard of metabolic testing. Resting Metabolic Rate (RMR) and Maximal Oxygen Consumption (VO2 Max) testing are becoming more well known, and there are good reasons for doing them.

For many years lactic acid seemed to be the ultimate enemy of a workout. It was thought to accumulate in your muscles, break them down, prevent you from completing your sets, and even make you sore when simply walking up stairs the next day. Turns out it has all been a misconception.

Why is it that so many runners and athletes have chronic sacroiliac joint dysfunction? Well maybe we should back up just a second and converse about what sacroiliac dysfunction is. If you have ever noticed that your hip or low back feel “tight” or “twisted” when you’re running you’re likely to be experiencing this dysfunction.