Comparison of hydrostatic weighing to bioelectrical impedance analysis in women greater than thirty percent body fat

Body composition - Measurement;Adipose tissues;Hydrostatics;Impedance;Bioelectric;Overweight women - Anthropometry

Bauer, ShariPorcari, J. ;

University of Wisconsin

关键词: Body composition - Measurement;    Adipose tissues;    Hydrostatics;    Impedance;    Bioelectric;    Overweight women - Anthropometry;   

Others  :  https://minds.wisconsin.edu/bitstream/handle/1793/48640/Obauershari1991.pdf?sequence=1&isAllowed=y

瑞士|英语

来源: University of Wisconsin

【 摘 要 】

Twenty-five female Ss age 18-65 years who had participated in acommunity weight loss class volunteered to have their body compositiondetermined via hydrostatic weighing (HW) and bioelectrical impedanceanalysis (BIA), All subjects were greater than 30% body fat. It wasdiscovered that bioelectrical impedance analysis using the BES 200Zanalyzer significantly (p<.05) underpredicted percent fat in all 25subjects, compared to HW. Percent fat predicted using the BES 2002analyzer was poorly correlated (r - .59) to percent fat using HW. Meanpercent fat determined by BIA was 33.9 +/- 6.39 compared to 42.8 +/- 6.30using HW. Mean fat free mass (FFM) was significantly overestimated(p<.05) using BIA (54.8 + 6.89) compared to HW (44.1 + 6.80). Newprediction equations were developed for the impedance analyzer. Thehighest correlation for a developed prediction equation was r - .97.This equation predicted FFM using the variables height squared (ht2),weight, age, impedance (R), and waist-to-hip ratio (WHR). Furtherinvestigation needs to be done to validate the accuracy of this equationfor the BES 200Z analyzer.