Dissertations and Theses @ UNI
Availability
Open Access Thesis
Keywords
Body composition--Measurement; Body weight--Measurement;
Abstract
Body density (DB) and ratings of perceived exertion (RPE) were determined from hydrostatic weighing (HW) performed at residual volume (RV), total lung capacity (TLC), and peak inspiratory tidal volume (PITV). Subjects were 31 females with a mean age of 23.4 ± 4.7 years. RV was measured on land by using a simplified method of oxygen dilution. VC was measured by spirometer with the subject submerged to the neck in water. PITV was measured with the subject completely submerged at the time of weighing. DB was 1.045 ± .010, 1 . 050 ± .010, and 1.046 ± .010 for HW at RV, TLC, and PITV, respectively. RPE values from the modified Borg scale were 3.5 ± 1.1, 1.6 ± 0.9, and 3 . 1 ± 1.5 for HW at RV, TLC, and PITV, respectively. Analysis of variance followed by a post hoc comparison indicated that there was no significant difference in DB with HW at PITV versus RV and TLC. However, there was a small but statistically significant difference in the DB with HW between RV and TLC. Results of the subjective evaluation showed a significant difference between RPE values for HW at TLC versus RV and PITV, with no significant difference between HW at RV and PITV . This indicated that subjects perceived weighing at TLC as easier than HW at both RV and PITV. Correlation coefficients for DB determined from HW at each of the three lung volumes ranged between r = . 82 to . 89. The RPE values (r = .01 to .14) were insignificant, but this relationship may have been due to the truncated range of the Borg Scale ratings . Based on these results, HW at PITV can be considered a viable alternative to HW at RV in that it is more comfortable for the subject while providing an accurate estimation of body density.
Year of Submission
1985
Degree Name
Master of Arts
Department
Department of Health, Physical Education, and Recreation
First Advisor
Forrest Dolgener
Second Advisor
Larry A. Hensley
Third Advisor
Joanne Spaide
Date Original
1985
Object Description
1 PDF file (82 leaves)
Copyright
©1985 Holly Ann Grenier
Language
en
File Format
application/pdf
Recommended Citation
Grenier, Holly Ann, "Differences in Body Density and Perceived Exertion Determined by Hydrostatic Weighing at Three Selected Lung Volumes" (1985). Dissertations and Theses @ UNI. 2767.
https://scholarworks.uni.edu/etd/2767
Comments
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