Bioelectrical impedance as a measure of change in body composition in young children
Summary Background and objectives The ability of bioelectrical impedance (BIA) to measure change in body composition in children has rarely been examined. Methods Body composition was estimated by BIA (Tanita BC‐418) and dual‐energy x‐ray absorptiometry (DXA) in 187 children aged 4–8 years at baseli...
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Published in | Pediatric obesity Vol. 10; no. 4; pp. 252 - 259 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
England
Blackwell Publishing Ltd
01.08.2015
Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Summary
Background and objectives
The ability of bioelectrical impedance (BIA) to measure change in body composition in children has rarely been examined.
Methods
Body composition was estimated by BIA (Tanita BC‐418) and dual‐energy x‐ray absorptiometry (DXA) in 187 children aged 4–8 years at baseline and at 12 months. Change in body composition was compared between the two methods using mixed models.
Results
Estimates of change in fat mass did not differ between BIA and DXA for overweight girls (mean difference between methods, 95% confidence interval: 0.04 kg, −0.19 to 0.28) or boys (0.07 kg, −0.14 to 0.27). BIA was also able to accurately detect change in fat‐free mass, with no significant differences between methods (−0.14 kg, −0.10 to 0.38 in girls and −0.07 kg, −0.35 to −0.20 in boys). Change in percentage fat produced similar estimates in both genders (0.18%, −0.82 to 0.46 in girls and 0.38%, −0.37 to 1.13 in boys). BIA/DXA comparisons in normal weight children were also not significantly different, with the exception of percentage fat in girls, where BIA slightly underestimated change compared with DXA (0.7%, 0.02–0.37).
Conclusion
BIA performed well as a measure of change in body composition, providing confidence for its use as an outcome measure in children. |
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Bibliography: | ArticleID:IJPO263 University of Otago, New Zealand ark:/67375/WNG-CBNR4QX6-W istex:950262D7A95B2A2465654E306F613B77B3C83397 Health Research Council of New Zealand ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2047-6302 2047-6310 |
DOI: | 10.1111/ijpo.263 |