A mobile system for assessment of physiological response to posture transitions

Posture changes initiate a dynamic physiological response that can be used as an indicator of the overall health status. We introduce an inconspicuous mobile wellness monitoring system (imWell) that continuously assesses the dynamic physiological response to posture transitions during activities of...

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Published in:2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) 2013-01, Vol.2013, p.7205-7208
Main Authors: Jovanov, Emil, Milosevic, Mladen, Milenkovic, Aleksandar
Format: Article
Language:English
Subjects:
Acceleration
Biomedical monitoring
Heart rate
Monitoring
Sensors
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container_title 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
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creator Jovanov, Emil
Milosevic, Mladen
Milenkovic, Aleksandar
description Posture changes initiate a dynamic physiological response that can be used as an indicator of the overall health status. We introduce an inconspicuous mobile wellness monitoring system (imWell) that continuously assesses the dynamic physiological response to posture transitions during activities of daily living. imWell utilizes a Zephyr BioHarness 3 physiological monitor that continually reports heart activity and physical activity via Bluetooth to a personal device (e.g. smartphone). The personal device processes the reported activity data in real-time to recognize posture transitions from the accelerometer data and to characterize dynamic heart response to posture changes. It annotates, logs, and uploads the heart activity data to our mHealth server. In this paper we present algorithms for detection of posture transitions and heart activity characterization during a sit-to-stand transition. The proposed system was tested on seven healthy subjects performing a predefined protocol. The total average and standard deviation for sit-to-stand transition time is 2.7±0.69 s, resulting in the change of heart rate of 27.36±9.30 bpm (from 63.3±9.02 bpm to 90.66±10.09 bpm).
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subjects Acceleration
Biomedical monitoring
Heart rate
Monitoring
Sensors
title A mobile system for assessment of physiological response to posture transitions
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