Validity of foot-to-foot bioelectrical impedance for estimating body composition in NCAA division I male athletes : a 3-compartment model comparison
Deutscher übersetzter Titel: | Die Validität der bioelektrischen Fuß-zu-Fuß-Impedanzanalyse zur Bestimmung der Körperzusammensetzung männlicher Sportler der Division I der NCAA : ein 3-Kompartiment-Modell-Vergleich |
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Autor: | Nickerson, Brett S.; Snarr, Ronald L.; Ryan, Greg A. |
Erschienen in: | Journal of strength and conditioning research |
Veröffentlicht: | 33 (2019), 12, S. 3361-3366, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 1064-8011, 1533-4287 |
DOI: | 10.1519/JSC.0000000000002999 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201912007900 |
Quelle: | BISp |
Abstract des Autors
The purpose of this study was to validate single-frequency foot-to-foot bioelectrical impedance analysis (FF-BIA) against a 3-compartment (3C) model in NCAA Division I male athletes. Thirty-three athletes (football = 19, baseball = 8, basketball = 3, and cheerleading = 3) had body fat percentages (BF%) and fat-free mass (FFM) estimated using a 3C model and FF-BIA. The criterion 3C model was derived from body mass, body volume (air displacement plethysmography), and total body water (bioimpedance spectroscopy). The mean BF% and FFM values for FF-BIA were not statistically significant when compared with the 3C model (p = 0.14 and 0.28, respectively). The standard error of estimate (2.79% and 2.64 kg), total error (2.95% and 2.64 kg), and 95% limits of agreement (±5.67% and ±5.15 kg) were considered acceptable for BF% and FFM, respectively. However, there was a significant trend in the regression line of the Bland-Altman plot, which indicated proportional bias for BF% (r = −0.50; p < 0.01). No proportional bias was present for FFM (r = 0.26; p > 0.05). Foot-to-foot BIA seems to be valid for estimating group and individual athlete’s FFM. Similarly, FF-BIA can be used for estimating group BF%. However, proportional bias indicates that FF-BIA is not valid for individual estimates of BF%.