PAI stands for Personal Activity Intelligence. You earn PAI points by elevating your heart rate. Anything that gets your body moving and your heart pumping counts (not just exercise and steps).
Your personal PAI score is based on your heart rate data and your personal profile, including age, sex, and fitness level. PAI uses this data to give you one simple, personalized score.
PAI's algorithm is based on data collected from the HUNT study, which took place over a 25-year period involving 45,000 participants. It was conducted by the Faculty of Medicine at the Norwegian University of Science and Technology and developed by Professor Ulrik Wisløff, one of the world’s leading scientists in Exercise in Medicine.
From this study, we were able to prove that you can live a longer, healthier life by maintaining a PAI score of 100 over a 7-day rolling period.