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Tango™ wellness motivator for supporting permanent lifestyle change

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Original languageEnglish
Title of host publicationWorld Congress on Medical Physics and Biomedical Engineering 2018
Subtitle of host publicationJune 3-8, 2018, Prague, Czech Republic
Number of pages5
ISBN (Electronic)978-981-10-9023-3
ISBN (Print)978-981-10-9022-6
Publication statusPublished - 1 Jan 2019
Publication typeA4 Article in a conference publication
EventWorld Congress on Medical Physics and Biomedical Engineering -
Duration: 3 Jun 20188 Jun 2018

Publication series

NameIFMBE Proceedings
ISSN (Print)1680-0737


ConferenceWorld Congress on Medical Physics and Biomedical Engineering
Abbreviated titleIUPESM 2018
Internet address


We present a system designed for assisting people in obtaining healthier lifestyle. The system includes a monitoring device worn on the chest and a web portal that visualizes the measured parameters and provides the user motivating tips for healthier lifestyles. The monitored parameters include heart rate, step count, calorie consumption, activity level, heart rate variability and sleep quality. A unique feature of the system is that the communication from the wearable unit to the backend server is arranged via direct mobile network connection, thus avoiding the need for a separate gateway device. The measured data can be viewed with a web browser user interface. We evaluated the beat-to-beat heart rate estimation performance with ten subjects in a controlled exercise protocol and with three subjects in 24-h free-living conditions. The average mean absolute error of the R-R interval estimation was 8.0 ms and 6.4 ms in the two test scenarios, respectively and the corresponding coverages of the obtained R-R intervals 76% and 94%.

ASJC Scopus subject areas


  • Lifestyle coaching, Wearable monitoring

Publication forum classification

Field of science, Statistics Finland