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The effects of increased oxygen concentrations and acceleration forces on the mechanical properties of the lungs
dc.contributor.advisor | Fife, W. P. | |
dc.creator | Bush, Larry Todd | |
dc.date.accessioned | 2020-08-21T22:00:38Z | |
dc.date.available | 2020-08-21T22:00:38Z | |
dc.date.issued | 1976 | |
dc.identifier.uri | https://hdl.handle.net/1969.1/DISSERTATIONS-613882 | |
dc.description | Vita. | en |
dc.description.abstract | The effects of breathing increased concentrations of oxygen (FI0₂ of 0.6 to 1.0) on the pulmonary compliance and pulmonary resistance were examined in normal, seated males. Exposures were for one hour and volume history of the lungs was established a t 10 minute intervals. There were no significant changes in any of the parameters examined. In addition, the effects of breathing increased oxygen concentrations (FI0₂'s of 0.6 to 0.8) and exposure to increased acceleration forces (+5Gz for 120 seconds and +7Gz for 45 seconds) on pulmonary compliance and resistance were examined in normal, seated males. Pulmonary compliance decreased significantly in subjects breathing the increased FI0₂'s after exposure to acceleration forces when compared to room air controls. The decrease in compliance appeared to be a function of the FI0₂, with those subjects breathing the greater FI0₂ showing a greater decrease in compliance than those subjects breathing the lesser FI0₂. There was no significant difference in the degree of compliance decrease between the two acceleration levels for a particular FI0₂. The pulmonary compliance showed a gradual return towards the pre-acceleration exposure level during the 15 minute interval between acceleration force exposures. | en |
dc.format.extent | xi, 129 leaves ; | en |
dc.format.medium | electronic | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | |
dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | |
dc.subject | Pressure breathing | en |
dc.subject | Pulmonary function tests | en |
dc.subject | Major biology | en |
dc.subject.classification | 1976 Dissertation B978 | |
dc.subject.lcsh | Pressure breathing | en |
dc.subject.lcsh | Pulmonary function tests | en |
dc.title | The effects of increased oxygen concentrations and acceleration forces on the mechanical properties of the lungs | en |
dc.type | Thesis | en |
thesis.degree.grantor | Texas A&M University | en |
thesis.degree.name | Doctor of Philosophy | en |
dc.type.genre | dissertations | en |
dc.type.material | text | en |
dc.format.digitalOrigin | reformatted digital | en |
dc.publisher.digital | Texas A&M University. Libraries | |
dc.identifier.oclc | 2686179 |
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