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METHOD FOR MEASURING ENERGY EXPENDITURE USING INDIRECT CALORIMETRY
METHOD FOR MEASURING ENERGY EXPENDITURE USING INDIRECT CALORIMETRY
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机译:间接量热法测量能源消耗的方法
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摘要
The present invention describes an apparatus and method for determining the energy expenditure of a subject by indirect calorimetry where respiratory gases O 2 and CO 2 are captured in a tent mask coupled through a pneumotach flow meter to a vacuum inlet of a blower fan whose speed is controlled by a computer running a program that ensures that the bias flow being drawn through the mask always exceeds the subject's peak expiratory flow. VO 2 and VCO 2 and flow values are measured on a breath-by-breath basis and used in arriving at a bias flow adjustment voltage to be applied to the blower fan for adjusting its speed.
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机译:本发明描述了一种用于通过间接量热法确定对象的能量消耗的装置和方法,其中呼吸气体O 2和CO 2被捕获在通过气动马达流量计耦合到速度为200℃的鼓风机的真空入口的帐篷面罩中。由运行程序的计算机控制,该程序可确保通过面罩吸入的偏流始终超过受试者的呼气峰流量。 VO 2和VCO 2以及流量值是在逐次呼吸的基础上进行测量的,并用于获得偏置流量调整电压,以施加到鼓风机上以调节其速度。
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