Validation of a Simple Metabolic-Equivalent-of-Task Sensor Based on a Low-Cost NFC RFID Wristband
Benjamin Saggin, Yassin Belaizi, Denis Mottet, Simon Pla, Karima Bakhti, Sylvain Fazilleau, Arnaud Vena, Brice Sorli · IEEE Sensors Journal · 2018
In this paper, a simple solution allowing continuous actimetry with an uniaxial magnetometer is presented. Worn on the wrist to monitor the forearm tilt, it can estimate the instantaneous metabolic-equivalent-of-task during physical activity. Autonomous acquisition and data transfer are managed by a radio frequency identification chip supporting the near field communication (NFC) standard. Thus, the solution can transfer measurements to an NFC-enabled device (computer and smartphone) that runs a custom algorithm. The algorithm output signal was indirectly calibrated to an accurate calorimetry device to display the real energy expenditure of the user during the physical activity session.