Cross-validation of modified fatness-specific bioelectrical impedance equations
| Deutscher übersetzter Titel: | Kreuzvalidierung modifizierter koerperfettspezifischer Bioimpedanz-Gleichungen |
|---|---|
| Autor: | Lockner, D.W.; Heyward, V.H.; Griffin, S.E.; Marques, M.B.; Stolarczyk, L.M.; Wagner, D.R. |
| Erschienen in: | International journal of sport nutrition and exercise metabolism |
| Veröffentlicht: | 9 (1999), 1, S. 48-59, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource |
| Sprache: | Englisch |
| ISSN: | 1050-1606, 1543-2742 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU199906309804 |
| Quelle: | BISp |
Abstract des Autors
The Segal fatness-specific bioelectrical impedance (BIA) equations are useful for predicting fat-free mass (FFM). Stolarczyk et al. proposed a modified method of averaging the two equations for individuals who are neither lean nor obese, thus eliminating the need to know %BF a priori. To cross-validate this modification, we compared FFM determined using the averaging method versus hydrostatic weighing for 76 adults. Per the averaging method, accuracy for males was excellent (r=.91, SEE=2.7 kg, E=2.7 kg), with 78% of individuals within +/-3.5% BF predicted by hydrostatic weighing. Accuracy for females was lower (r=.88, SEE=3.0 kg, E=3.1 kg), with % Bf of 51% within +/-3.5% of the reference method. The relative ease and practicality of the averaging method and the results of this study indicate this method may be useful with a diverse group. Verf.-Referat