Literature DB >> 511713

Incorporating the gas analyzer response time in gas exchange computations.

R R Mitchell.   

Abstract

A simple method for including the gas analyzer response time in the breath-by-breath computation of gas exchange rates is described. The method uses a difference equation form of a model for the gas analyzer in the computation of oxygen uptake and carbon dioxide production and avoids a numerical differentiation required to correct the gas fraction wave forms. The effect of not accounting for analyzer response time is shown to be a 20% underestimation in gas exchange rate. The present method accurately measures gas exchange rate, is relatively insensitive to measurement errors in the analyzer time constant, and does not significantly increase the computation time.

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Year:  1979        PMID： 511713     DOI： 10.1152/jappl.1979.47.5.1118

Source DB:  PubMed          Journal:  J Appl Physiol Respir Environ Exerc Physiol        ISSN： 0161-7567


  8 in total

1.  A real-time algorithm to improve the response time of a clinical multigas analyser.

Authors:  L Wong; R Hamilton; E Palayiwa; C Hahn
Journal:  J Clin Monit Comput       Date:  1998-08       Impact factor: 2.502

2.  Automatisation of the single-breath nitrogen washout test.

Authors:  M F Melo; A Giannella Neto
Journal:  Med Biol Eng Comput       Date:  1989-03       Impact factor: 2.602

3.  Ventilation studied with circulatory occlusion during two intensities of exercise.

Authors:  W C Stanley; W R Lee; G A Brooks
Journal:  Eur J Appl Physiol Occup Physiol       Date:  1985

4.  Response characteristics of a mass spectrometer.

Authors:  S J Tavener; S J Withy; E A Harris
Journal:  Med Biol Eng Comput       Date:  1984-11       Impact factor: 2.602

5.  Noninvasive detection of the anaerobic threshold during computer-controlled exercise testing.

Authors:  T L Talbot; W H Schuette; H W Tipton; L E Thibault; F L Brown; R M Winslow
Journal:  Med Biol Eng Comput       Date:  1985-11       Impact factor: 2.602

6.  A Non-Invasive Method for Estimating Cardiopulmonary Variables Using Breath-by-Breath Injection of Two Tracer Gases.

Authors:  Lei Clifton; David A Clifton; Clive E W Hahn; Andrew D Farmeryy
Journal:  IEEE J Transl Eng Health Med       Date:  2013-07-17       Impact factor: 3.316

Review 7.  Algorithms, modelling and VO₂ kinetics.

Authors:  Carlo Capelli; Capelli Carlo; Michela Cautero; Cautero Michela; Silvia Pogliaghi; Pogliaghi Silvia
Journal:  Eur J Appl Physiol       Date:  2010-02-27       Impact factor: 3.078

Review 8.  Open-circuit respirometry: real-time, laboratory-based systems.

Authors:  Susan A Ward
Journal:  Eur J Appl Physiol       Date:  2018-05-04       Impact factor: 3.078
  8 in total

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