Document Detail


A comparison of dual-energy X-ray absorptiometry and somatometrics for determining body fat in rhesus macaques.
MedLine Citation:
PMID:  10023735     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Various approaches have been used to assess fat and fat distribution in nonhuman primates, including measurements of body weight, body dimensions, and estimates derived from these, such as body mass index. Methods such as tritiated water dilution and dual-energy X-ray absorptiometry (DXA) have also been used. The aim of the present study was to evaluate and compare DXA measurements and somatometrics. RESEARCH METHODS AND PROCEDURES: Body composition of 15 adult male rhesus macaques was measured by DXA and somatometrics at four time-points over a 4-year period. Additionally, DXA precision and somatometric variability were analyzed by repeated measurements of the same subjects. RESULTS: DXA estimates of body fat were positively correlated with body weight, body mass index, body circumferences, and abdominal skinfold thicknesses. DXA assessments of soft tissue composition were precise, with coefficients of variation below 3.3% for all compartments analyzed. The majority of the observed variability in somatometrics was explained by subject variance, rather than by inter- or intraobserver variability, or by observer experience level. DISCUSSION: We conclude that noninvasive DXA technology provides precise estimates of nonhuman primate body composition that correlate well with the traditional somatometric measures used in primate studies.
Authors:
R J Colman; J C Hudson; H S Barden; J W Kemnitz
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Obesity research     Volume:  7     ISSN:  1071-7323     ISO Abbreviation:  Obes. Res.     Publication Date:  1999 Jan 
Date Detail:
Created Date:  1999-04-20     Completed Date:  1999-04-20     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9305691     Medline TA:  Obes Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  90-6     Citation Subset:  IM    
Affiliation:
Wisconsin Regional Primate Research Center, Department of Anthropology, University of Wisconsin-Madison, 53715-1299, USA.
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MeSH Terms
Descriptor/Qualifier:
Absorptiometry, Photon / veterinary*
Adipose Tissue / anatomy & histology*
Animals
Body Composition / physiology*
Body Mass Index
Body Weight
Macaca mulatta / anatomy & histology*,  physiology
Male
Observer Variation
Skinfold Thickness
Grant Support
ID/Acronym/Agency:
P01AG011915/AG/NIA NIH HHS; P51 RR00167/RR/NCRR NIH HHS; R01 AG07831/AG/NIA NIH HHS

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