Abstract
Purpose:
The purpose of this investigation was to compare a practical measurement of fat free mass index (FFMI) from bioelectrical impedance analysis (BIA) to the dual energy X-ray absorptiometry (DEXA) value in collegiate athletes.Methods:
Thirty-three male baseball players and 16 female gymnasts volunteered to participate in this study during their respective pre-season. Subjects visited the laboratory once and had their measurements taken in the following order: weight, height, DEXA, and Omron HBF-500.Results:
The BIA device investigated was not a valid estimate of FFMI when compared to the DEXA. The TE was 0.93 kg/ m2 for males and 0.78 kg/ m2 for females. There were also significant mean differences between the BIA prediction and the DEXA value for males (BIA=20.6 kg/m2 vs. DEXA=21.1 kg/m2,Conclusions:
The BIA device investigated in this study did not provide a valid estimate of FFMI in male and female collegiate athletes. Although there was a general tendency for the BIA to underestimate FFMI compared to DEXA, 98% of the estimates were within plus or minus 2 kg/ m2. Therefore, while slightly biased, BIA may provide a reasonable ( 2 kg/ m2) estimate of nutritional status for practitioners who are unable able to afford more expensive equipment.Keywords
Body Mass Index Body Fat Sports Fat Free Mass Dual Energy X-ray Absorptiometry DEXA Scan
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© 2012, Author(s). This open-access article is available under the Creative Commons Attribution 4.0 (CC BY 4.0) International License (https://creativecommons.org/licenses/by/4.0/), which allows for unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited.