A Model for Determining Induced Physiological Stress During Respirator Wear

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Description

A model was developed to predict the increased physiological effort of wearing a respiratory protective device. Specifically, the model was designed to predict the effects of varying ventilatory demands on eleven respiratory variables of the man-respirator system, breath frequency (f_b), tidal volume (V_t), inspiratory flow (dvi/dt), expiratory flow (dve/dt), inspiratory mask pressure (P_mi), expiratory mask pressure (P_me), inspiratory intrathoracic pressure (P_ii), expiratory intrathoracic pressure (P_ie), inspiratory mask work (W_mi), expiratory mask work (W_me), and mask leakage index (L_i). The model was tested by experiment in which three male subjects underwent maximal exercise testing with and without the "pressure-demand" respirator. The ... continued below

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v, 81 leaves : ill.

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Meyer, Steve D. (Steve Douglas) December 1984.

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This thesis is part of the collection entitled: UNT Theses and Dissertations and was provided by UNT Libraries to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 19 times . More information about this thesis can be viewed below.

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  • Meyer, Steve D. (Steve Douglas)

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A model was developed to predict the increased physiological effort of wearing a respiratory protective device. Specifically, the model was designed to predict the effects of varying ventilatory demands on eleven respiratory variables of the man-respirator system, breath frequency (f_b), tidal volume (V_t), inspiratory flow (dvi/dt), expiratory flow (dve/dt), inspiratory mask pressure (P_mi), expiratory mask pressure (P_me), inspiratory intrathoracic pressure (P_ii), expiratory intrathoracic pressure (P_ie), inspiratory mask work (W_mi), expiratory mask work (W_me), and mask leakage index (L_i). The model was tested by experiment in which three male subjects underwent maximal exercise testing with and without the "pressure-demand" respirator. The eleven variables were determined for each thirty second period utilizing on-line computer analysis. Application of the model to these experimental conditions resulted in significant (p<.001) relationships between each of the predicted and observed variables.

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v, 81 leaves : ill.

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UNT Theses and Dissertations

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  • December 1984

Added to The UNT Digital Library

  • May 10, 2015, 6:16 a.m.

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  • Nov. 29, 2016, 11:05 a.m.

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Citations, Rights, Re-Use

Meyer, Steve D. (Steve Douglas). A Model for Determining Induced Physiological Stress During Respirator Wear, thesis, December 1984; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc503866/: accessed January 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .