The Science Behind PAI [INFOGRAPHIC]

Cardiorespiratory fitness, or CRF for short, is the ability of the circulatory and respiratory systems to supply oxygen to skeletal muscles during sustained physical activity. Measuring V02 max, or how much oxygen a person can utilize during intense exercise, is the most precise measure of CRF. 

Take a look at the below infographic to learn more about the science behind PAI and why we value heart health so much. Or, click here to see the PDF version

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Data from the HUNT study was used to develop and validate PAI as an effective tool in prescribing personalized amounts of life-extending physical activity. It was determined that if a person achieved and maintained 100 weekly PAI, they would lower their risk of cardiovascular disease