Development and validation of anthropometric equations for determination of body composition in the elderly /
The purpose of this dissertation was to develop and cross-validate anthropometric body composition equations for the elderly (i.e., > 65 y). This was undertaken because none of the published predictive body composition equations were developed solely on and for an elderly population. The lack o...
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| Format: | Thesis Book |
| Language: | English |
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[Place of publication not identified] :
[publisher not identified] ;
1996.
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| Subjects: | |
| Online Access: | http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=739363461&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD |
| Summary: | The purpose of this dissertation was to develop and cross-validate anthropometric body composition equations for the elderly (i.e., > 65 y). This was undertaken because none of the published predictive body composition equations were developed solely on and for an elderly population. The lack of accurate and reliable predictive equations for this population leads to errors when estimating the elderly's body composition values. One-hundred and fifty male and female elderly (75 males and 75 females) with a mean +/- SD age of 70 +/- 3.71 y were randomly assigned to either an equation development sample (n--50) or an equation validation sample (n--25), respectively. The male and female development and validation sample groups, respectively, were joined to make combined development (n=100) and validation (n=50) samples. The development samples were combined in order that gender could be included as an independent variable. Hydrodensitometry was used to determine subject body density, percent fat, fat-free mass, and fat weight. The hydrostatically determined measures were used as the criterion variables by which the prediction equations were developed and validated. The results of this study indicate that accurate and reliable anthropometric predictive equations may be developed for an elderly population. Three equations were developed for the estimation of body density (2 male, I combined). Four equations were developed for the estimation of percent fat (2 male, 2 combined). Five equations were developed for the estimation of fat-free mass (2 male, I female, 2 combined), and six equations are presented for the estimation of fat weight (2 male, I female, 3 combined). The equations provided estimates which were not statistically different from the hydrostatically determined criterion variables. The equations possessed standard errors of estimate ranging from +/- .002 g/L for body density to +/-1.472 kg for fat-free mass. |
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| Item Description: | Vita. "Major Subject: Kinesiology". |
| Physical Description: | xv, 281 leaves : illustrations ; 28 cm. Issued also on microfiche from University Microfilms Inc. |
| Bibliography: | Includes bibliographical references: pages 131-143. |