신체 활동 에너지 측정을 위한 부착형 센서 모듈

Abstract

For ubiquitous healthcare system, in-situ monitoring of energy expenditure is one of essential requirement. Ubiquitous healthcare means monitoring anyone, in everywhere without any dependence on time and location. Excess nutrient and energy imbalance are considered major important cause of chronic disease. Either of them is base on the individual energy consumption and caloric intake.

In this thesis, accurate quantification of physical activity energy expenditure has been evaluated by the wireless patch type sensor module. The combined heart rate and movement sensors method is used for measuring energy expenditure against indirect calorimetry Cosmed K4b2 (Cosmed, Srl, Italy). The sensing module for the heart rate (HR), movement index (MI) detection, is proposed to assess physical activity in populations. For the desired correlation equations between physical activity and energy expenditure; heart rate, movement data measured from Bruce protocol test on the treadmill (0~15Km/h). The experiment results verify that the chest patched type wireless sensor module AirBeat system has strong relationship with oxygen consumption (R2=0.78). However the wireless HR-MI sensor overestimated energy expenditure during low activities and underestimated the energy during the intensive activities (p<0.001).