O’Reilly MA, Slevin P, Ward T, Caulfield B

JMIR Mhealth Uhealth. 2018 Jan 31;6(1):e33. doi: 10.2196/mhealth.8115.
This study demonstrated an overall positive evaluation of Formulift in the categories of usability, functionality, perceived impact, and subjective quality. Users also suggested a number of changes for future iterations of the system. These findings are the first of their kind and show great promise for wearable sensor-based exercise biofeedback systems.