“…Eight of the studies identified (53.33%) [30,31,32,33,35,37,40,41] employed light monitoring, based on questionnaires and tests to get data and parameters from users. Three of the studies [29,36,39] (20%) employed heavy monitoring with controlled spaces or specific devices. Two studies [34,42] (13.33%) focused on medium monitoring, based on smartphones, wearables, and sensors.…”