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|Title: ||A pilot study comparing bioelectrical impedance analysis and body mass index in determining obesity among staff of a Ghanaian University|
|Authors: ||Hayford, Frank Ekow Atta|
Appiah, Collins Afriyie
Al Hassan, Taofik
Body mass index
Bioelectrical impedance analysis
Total body fat
|Issue Date: ||2018|
|Publisher: ||Emerald Publishing Limited|
|Abstract: ||Purpose – In Ghana, the body mass index (BMI) is widely used in clinical practice in assessing weight status,
but it is limited as a measure of adiposity. The purpose of this study was to compare bioelectrical impedance
analysis (BIA) and body mass index (BMI) methods in determining obesity among some Ghanaians.
Design/methodology/approach – This was a cross-sectional survey involving 134 participants whose
BMI were determined. Percentage body fat mass (%BF) and percentage visceral fat (%VF) were obtained by
BIA using a hand-to-hand Omron body composition monitor with a weighing scale.
Findings – Based on the WHO BMI criteria, 6.0 per cent of the participants were obese. However, according
to BIA 18.7 and 20.9 per cent of the participants were obese according to % BF and %VF, respectively. The
BMI and %BF showed higher prevalence of obesity among female participants (8.2 and 34.4 per cent,
respectively) than male participants (4.1 and 5.5 per cent, respectively), whereas for %VF, obesity was higher
among male participants than female participants (26.0 per cent, 14.8 per cent). There was significant positive
correlation between BMI and%BF (r = 0.604, p = 0.001); and between BMI and %VF(r = 0.555, p = 0.001. Research limitations/implications – There are discrepancies in the prevalence of obesity in the study
population as measured by BMI and BIA methods. This suggests that the BMI and BIA may not be reliable
tools for assessing obesity in this population. Further studies are needed to determine the cut-offs for BMI and
BIA that are associated withmetabolic risk in the population. The small sample size limits the generalizability
of findings of this study.
Originality/value – Body composition tends to vary by ethnicity and race; hence, it is essential to
determine the appropriate tool for assessing adiposity in African populations for prompt and targeted
|Description: ||An article published by Emerald Publishing Limited and also available at DOI 10.1108/NFS-02-2018-0061|
|Appears in Collections:||College of Science|
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