Journal article
Accuracy of the body adiposity index and body adiposity index FELS compared with air displacement plethysmography
Journal of Fitness Research, Vol.5(3), pp.28-37
2016
Abstract
The Body Adiposity Index (BAI) estimates a person's percent body fat using hip circumference and height. A slight variation of the BAI from the FELS longitudinal study (BAIFELS) has more recently proposed to estimate percent body fat better than the BAI. Purpose: Assess criterion validity of the BAI and BAIFELS with air displacement plethysmography (ADP). Methods: Percent body fat was estimated for 1636 volunteer healthy adults (881M; 755F, age: 36.9 ±10.5 yrs; BMI: 25.4±4.6 kg/m2) using ADP and BAI and BAIFELS. Differences in percent body fat between ADP, BAI, and BAIFELS were tested using an repeated measure ANOVA with post hoc analyses. Agreement between methods was tested using Bland-Altman plots. Results: Differences in percent body fat between each method were statistically significant (p<.05).Percent body fat assessed by ADP correlated moderately with BAI (r=0.534, p<0.001), BAIFELS (r=0.526, p<0.001),and BMI (r=0.476, p<0.001).BAI and BAIFELS underestimated percent body fat compared to ADP on average 2.1% and 1.1% respectively. BAI equations overestimated percent body fat for lean persons and overestimated percent body fat for overweight or obese persons.Agreement between BAI, BAIFELS was poor with wide limits of agreement. Conclusion: BAI and BAIFELS are easier and less expensive alternatives to estimate percent body fat in humans compared to ADP. However, health risk due to body fat will be better estimated using either ADP or waist circumference and waist-to-hip ration in addition to an BAI.BAI would be most suitable where resources for estimating percent body fat are most limited.
Details
- Title
- Accuracy of the body adiposity index and body adiposity index FELS compared with air displacement plethysmography
- Authors
- Justin R Brown (Author) - University of Utah, United StatesLaura M Young (Author) - University of Utah, United StatesTrever J Ball (Author) - University of Utah, United StatesAndrew T Del Pozzi (Author) - Ball State University, United States
- Publication details
- Journal of Fitness Research, Vol.5(3), pp.28-37
- Publisher
- Australian Institute of Fitness
- Date published
- 2016
- ISSN
- 2201-5655
- Copyright note
- Copyright © 2016 Australian Institute of Fitness. Reproduced with permission of the publisher.
- Organisation Unit
- University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99450805702621
- Output Type
- Journal article
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