This paper describes a novel, unobtrusive photoplethysmographic device and experiments conducted in a dynamic condition. The device complements a photoplethysmograph with a dynamometer, an accelerometer, and a thermometer. We built it in the door handle of a refrigerator and made tests during the door opening and closing. Short-term PPG signals were obtained across all fingers pulling the handle. In parallel, we measured the standard ECG lead II as a reference for the detected heartbeat verification. The blood pressure of each participant was registered before each experimental trial by a standard sphygmomanometer. Based on the PPG signals, we ran our computer algorithms for detecting the heartbeats and estimating the mean blood pressure. Satisfactory results were achieved for heartbeats, with 97.62% sensitivity and 90.31% precision. However, blood pressure estimation appeared to be not very efficient – neither linear nor exponential modeling could lower the estimated mean absolute error in comparison to referential mean blood pressures below 6 mmHg.<\/p>\n\n\n\n
https:\/\/www.researchgate.net\/publication\/287583726_Blood_Pressure_Estimation_Accordig_to_Photoplethysmographic_Signal_Steepness<\/a><\/p>","protected":false},"excerpt":{"rendered":" This paper describes a novel, unobtrusive photoplethysmographic device and experiments conducted in a dynamic condition. The device complements a photoplethysmograph with a dynamometer, an accelerometer, and a thermometer. We built it in the door handle of a refrigerator and made Read More …<\/a><\/p>","protected":false},"author":7,"featured_media":1285,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13,11,19],"tags":[],"_links":{"self":[{"href":"https:\/\/au.feri.um.si\/leoss\/en\/wp-json\/wp\/v2\/posts\/227"}],"collection":[{"href":"https:\/\/au.feri.um.si\/leoss\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/au.feri.um.si\/leoss\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/au.feri.um.si\/leoss\/en\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/au.feri.um.si\/leoss\/en\/wp-json\/wp\/v2\/comments?post=227"}],"version-history":[{"count":2,"href":"https:\/\/au.feri.um.si\/leoss\/en\/wp-json\/wp\/v2\/posts\/227\/revisions"}],"predecessor-version":[{"id":575,"href":"https:\/\/au.feri.um.si\/leoss\/en\/wp-json\/wp\/v2\/posts\/227\/revisions\/575"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/au.feri.um.si\/leoss\/en\/wp-json\/wp\/v2\/media\/1285"}],"wp:attachment":[{"href":"https:\/\/au.feri.um.si\/leoss\/en\/wp-json\/wp\/v2\/media?parent=227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/au.feri.um.si\/leoss\/en\/wp-json\/wp\/v2\/categories?post=227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/au.feri.um.si\/leoss\/en\/wp-json\/wp\/v2\/tags?post=227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}