title: System to obtain exercise respiratory flow waveforms.
abstract: A system for obtaining respiratory flow rate waveforms, tidal volume, minute volume, respiration rate, inhalation time and exhalation time is described. The system is based on a microcomputer with analog-to-digital converter board. System software allows calibration, data acquisition and data analysis. Data can be obtained automatically at fixed time intervals. The system is inexpensive and reliable.
authors.affiliation: Agricultural Engineering Department, University of Maryland, College Park 20742.
authors.forename: A T
authors.initials: AT
authors.lastname: Johnson
authors.forename: C R
authors.initials: CR
authors.lastname: Dooly
mesh_terms: D000703:Analog-Digital Conversion; D002138:Calibration; D004867:Equipment Design; D015444:Exercise / Q000502:physiology*; D006801:Humans; D008838:Microcomputers; D008991:Monitoring, Physiologic / Q000379:methods; D012123:Pulmonary Ventilation; D012016:Reference Values; D012129:Respiratory Function Tests / Q000379:methods*; D012815:Signal Processing, Computer-Assisted; D012984:Software; D012985:Software Design; D013990:Tidal Volume; D014160:Transducers, Pressure