title: A simple model implementation to measure breath by breath the VO2 and VCO2 by the indirect calorimetry technique.
abstract: This paper proposes a discrete random time series modeling for the VO2 and VCO2 measurement in the indirect calorimetry technique (ICT). Mathematical equations are developed in order to establish clear differences between the breath-by-breath and mixing chamber measurement based calorimeters. This simple model offers not only a physiological ICT definition approach but also defines the idea of VO2 and VCO2 short-term variability information for research. The preliminary results show a new physiological information when a computer oriented algorithm model implementation was applied to a data acquisition system in order to obtain the power spectrum analysis from a typical observation subject submitted to the clino-ortho maneuver.
authors.affiliation: Department of Electrical Engineering, Universidad Autonoma Metropolitana, Iztapalapa, Mexico.
authors.forename: M
authors.initials: M
authors.lastname: Cadena
authors.forename: E
authors.initials: E
authors.lastname: Sacristan
authors.forename: O
authors.initials: O
authors.lastname: Infante
authors.forename: F
authors.initials: F
authors.lastname: Rodriguez
authors.forename: B
authors.initials: B
authors.lastname: Escalante
authors.forename: P
authors.initials: P
authors.lastname: Pérez
authors.forename: J
authors.initials: J
authors.lastname: Azpiroz
mesh_terms: D000465:Algorithms; D001944:Breath Tests / Q000295:instrumentation* / Q000379:methods; D002153:Calorimetry, Indirect / Q000379:methods*; D002245:Carbon Dioxide / Q000378:metabolism*; D004867:Equipment Design; D006801:Humans; D015233:Models, Statistical; D010100:Oxygen / Q000378:metabolism*; D010101:Oxygen Consumption; D015203:Reproducibility of Results; D012119:Respiration; D012137:Respiratory System; D012815:Signal Processing, Computer-Assisted; D012984:Software
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen