Resumen de Comparative evaluation of physical activity parameters based on wrist-wearable devices
T. Hübner, Gema Garcia Saez, J. M. Iniesta, J. Tapia, C. Pérez Gandía, María Elena Hernando Pérez
Physical activity is a significant part of the treatment and prevention of a wide range of diseases. A modern approach to classification of physical activity is the use of accelerometers that are available in many devices. This work compares characteristic parameters for physical activity which are measured by wrist-wearable devices. The amount of calories burnt, the number of steps taken and the heart rate of four users were recorded while the user is exercising on a treadmill in a physical activity session that included different intensity levels estimated as metabolic equivalents of tasks (METs). The measured amount of calories burnt and number of steps taken showed to be very similar over all of the devices and users. Higher intensity levels produce a greater variance in the measured data. The measurement of the heart rate showed indistinctive results as the data varied strongly over users and devices. A deeper analysis is needed to overcome synchronization problems. The study showed that the measurement of physical activity with wrist-wearable devices is reliable and the results for commercial devices and a proprietary algorithm are comparable to each other.
