Dr.-Ing.Rainer Blind, formerly Universität Stuttgart · Institute for Systems Theory and Automatic Control developed aTrainingTracker, and called it an Android app for “the really serious athletes” https://github.com/rainerblind/aTrainingTracker Since several years, we where reviewing consumer grade low-cost high-quality physiological sensor devices. But our goal is to study the effect of practicing mediation on physiological parameters. Why did we …