Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/19379

Title: Fatness biases the use of estimated leg length as an epidemiological marker for adults in the NHANES III sample
Authors: Bogin, Barry
Varela Silva, Maria Ines
Keywords: Body fatness
Estimated leg length
Sitting height ratio
Issue Date: 2008
Publisher: Oxford University Press on behalf of the International Epidemiological Association / © The Author 2008
Citation: BOGIN, B. and VARELA SILVA, M.I., 2008. Fatness biases the use of estimated leg length as an epidemiological marker for adults in the NHANES III sample. International Journal of Epidemiology, 37 (1), pp.201-209
Abstract: Background: We analyse the NHANES III sample to assess the suitability of measured stature and sitting height to estimate leg length (tibia + femur) and predict fatness. High rates of overweight in the United States population may lead to greater gluteo-femoral fat mass which will increase sitting height and artificially decrease estimates of both absolute and relative leg length. Methods: The analyses include 3076 women and 3233 men, 20.0-49.9 years of age of White, Black or Mexican-American ethnicity. The poverty index ratio, measured stature, sitting height, upper leg length, weight, four skinfolds, buttocks circumference and elbow, biacromial and biiliac breadths were extracted from the database. The sitting height ratio, % body fatness, % upper leg length (ULL/stature), and other indices were estimated. Correlation and principle component analysis were used to assess the relationship between measures of body fatness, relative leg length and the other variables. Results: For adults in the NHANES III %body fat is more strongly correlated with buttocks circumference (r = 0.87 and 0.78 for women and men), than with any measure of estimated leg length (r's range from -0.28 to -0.10 for both sexes). Principle components analysis separates fatness, stature and estimated leg length into uncorrelated factors for this sample. Conclusion: Reports of a negative association between leg length and fatness for adults of the NHANES III are likely spurious, due to greater gluteo-femoral fat thickness increasing sitting height. Future rounds of the NHANES, and similar surveys in other nations with high body fat populations, should measure lower extremity length directly to better assess its relationship to health and disease risk. © The Author 2008; all rights reserved.
Description: This paper is closed access.
Version: Closed access
DOI: 10.1093/ije/dym254
URI: https://dspace.lboro.ac.uk/2134/19379
Publisher Link: http://dx.doi.org/10.1093/ije/dym254
ISSN: 0300-5771
Appears in Collections:Closed Access (Sport, Exercise and Health Sciences)

Files associated with this item:

File Description SizeFormat
Bogin and Varela-Silva final.pdfPublished version157.8 kBAdobe PDFView/Open


SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.