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Epidemiological studies have shown that OH is a high risk factor for falls and has a strong impact in quality of life (QoL) of the elderly's, especially for some cases such as Parkinsonians. Based on smartwatch data, it is explored here how statistical features of heart rate variability (HRV) can lead to DSBP prediction and estimation of the risk of fall. In this vein, a pilot study was conducted in collaboration with five Greek Parkinson's Foundation patients and ten healthy volunteers. Taking into consideration, the estimated DSBP and additional statistics of the user's medical\/behavioural history, a fuzzy logic inference system was developed, to estimate the instantaneous risk of fall. The latter is fed back to the user with a mechanism chosen by him\/her (i.e. vibration and\/or sound), to prevent a possible fall, and also sent to the attentive carers and\/or healthcare professionals for a home\u2010based monitoring beyond the clinic. The proposed approach paves the way for effective exploitation of the contribution of smartwatch data, such as HRV, in the sustain of QoL in everyday living activities.<\/jats:p>","DOI":"10.1049\/htl.2016.0064","type":"journal-article","created":{"date-parts":[[2016,10,13]],"date-time":"2016-10-13T16:08:23Z","timestamp":1476374903000},"page":"263-268","source":"Crossref","is-referenced-by-count":20,"title":["Fuzzy logic\u2010based risk of fall estimation using smartwatch data as a means to form an assistive feedback mechanism in everyday living activities"],"prefix":"10.1049","volume":"3","author":[{"given":"Dimitrios E.","family":"Iakovakis","sequence":"first","affiliation":[{"name":"Department of Electrical and Computer Engineering Aristotle University of Thessaloniki  GR 54124 Thessaloniki Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fotini A.","family":"Papadopoulou","sequence":"additional","affiliation":[{"name":"Department of Automation Engineering Alexander Technological Educational Institute  Sindos GR 57400 Thessaloniki Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leontios J.","family":"Hadjileontiadis","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering Aristotle University of Thessaloniki  GR 54124 Thessaloniki Greece"},{"name":"Department of Electrical and Computer Engineering Khalifa University  P.O. 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