A mobile system for assessment of physiological response to posture transitions.
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Date
2013-10-10
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Abstract
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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Keywords
Client, Supply of equipment, Expenses related to commodity production, Prototype, Functionality, Short-term, Surveillance, Raw data, Bluetooth, Physiologic Biosensors