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http://dx.doi.org/10.7236/JIWIT.2012.12.6.303

Development of energy expenditure measurement device based on voice and body activity  

Im, Jae Joong (Dept. of Electronic Engineering, Chunbuk National University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.12, no.6, 2012 , pp. 303-309 More about this Journal
Abstract
Energy expenditure values were estimated based on the voice signals and body activities. Voice signals and body activities were obtained using PVDF contact vibration sensor and 3-axis accelerometer, respectively. Vibration caused by voices, activity signals, and actual energy consumption were acquired using data acquisition system and gas analyzer. With the use of power values from the voice signals and weight as independent variables, R-square of 0.918 appeared to show the highest value. For activity outputs, use of signal vector magnitude, body mass index, height, and age as independent variables revealed to provide the highest correlation with actual energy expenditure. Estimation of energy expenditure based on voice and activity provides more accurate results than based on activity only.
Keywords
Energy expenditure; 3-axis accelerometer; PVDF vibration sensor; Voice; Gas analyzer;
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Times Cited By KSCI : 3  (Citation Analysis)
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