The Development of a Prediction Equation to Determine Either Density Or Percent Body Fat in Males Over Sixty Years of Age PDF Download
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Author: Lisa Mia Hohl
Publisher:
ISBN:
Category : Adipose tissues
Languages : en
Pages : 206
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Author: Lisa Mia Hohl
Publisher:
ISBN:
Category : Adipose tissues
Languages : en
Pages : 206
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Author: Dierk Sandner
Publisher:
ISBN:
Category : Body composition
Languages : en
Pages : 242
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Author: J. A. Hodgdon
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
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In October of 1981, OPNAVINST 6110.1B was promulgated establishing the percentage of body weight contributed by fat mass (%BF) as the basis for weight control decisions. Tables based upon the work of Wright, Dotson, and Davis allowing prediction of %BF from abdominal and neck circumferences were accepted for use on an interim basis. This report covers validation of the equation of Wright and his co-workers, as well as the development and cross- validation of a new equation which offers improved prediction of %BF for U.S. Navy male personnel. Anthropometric measures consisting of 8 skinfold thicknesses, 12 body circumferences, height, and body weight were made on 602 male U.S. Navy personnel aged 18-56 years (mean age = 32 yrs). In addition, each participant had her body density and %BF determined by underwater weighing. Validity of the equation of Wright and co-workers was assessed by correlation between predicted and measured %BF. The correlation coefficient = 0.87 (std. err. meas. = 3.99 %BF). Errors in prediction near the Navy minimum standard of 22% BF, dictated development of a new equation.
Author: Robert E. Mance
Publisher:
ISBN:
Category : Adipose tissues
Languages : en
Pages : 176
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Author: Scarlet Rae Johnson
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ISBN:
Category :
Languages : en
Pages :
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Author: T. A. Lamke
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 424
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Author: Gazanfer Dogu
Publisher:
ISBN:
Category :
Languages : en
Pages : 212
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Author: Janice Brown
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ISBN:
Category :
Languages : en
Pages :
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Author: Joseph M. Koenig
Publisher:
ISBN:
Category : Body composition
Languages : en
Pages : 152
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This study developed prediction formulas (PF) for residual volume (PRV) and functional residual capacity (PFRC) using the variables age (A), height (Ht), weight (Wt), chest depth (CD), and smoking history (SH)in 100 male subjects between the ages of 18-69 years. A and Ht were the only variables which contributed significantly to PRV. A, Ht, and Wt were the only variables to contribute significantly to PFRC. A test-retest correlation between two trials of RV (r=.99) and FRC (r=.98) determinations indicated that reliable measures were taken by the closed circuit oxygen dilution technique. Through the use of multiple step-wise regression the following PRV and PFRC formulas were developed: PRV (liters)=.0260376(A) + .0256005(Ht) - 3.89794 PFRC (liters) = .0493365(Ht) + .0116958(A) - 00919313(Wt)-6.20966 The standard error of estimation (S.Y.E.) of the PRV and PFRC formulas (241 and 403 mls, respectively) were all lower than those reported by Boren et al . (1966) (B), Crapo et al . (1982) (C), Goldman and Becklake (1959) (GB). and Grimby and Soderholm (1963) (GS). The variation (R ~) attributed to the independent variables was .72 and .4l for PRV and PFRC, respectively. These R' values were higher than those reported by B, C, and GS. Using the data obtained in this study, an ANOVA with repeated measures followed by a Scheffe' post hoc test determined significant differences (p.05) between PRV and the PF of C and GB. Significant differences (p
Author: Janice Brown
Publisher:
ISBN:
Category : Body composition
Languages : en
Pages : 290
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