Presented at the 62nd Annual Meeting of the American Academy of Forensic Sciences, February 22–27, 2010, in Seattle, WA.
The Effect of Weight on the Femur: A Cross-Sectional Analysis*
Article first published online: 6 JAN 2011
© 2011 American Academy of Forensic Sciences
Journal of Forensic Sciences
Volume 56, Issue 2, pages 339–343, March 2011
How to Cite
Agostini, G. M. and Ross, A. H. (2011), The Effect of Weight on the Femur: A Cross-Sectional Analysis. Journal of Forensic Sciences, 56: 339–343. doi: 10.1111/j.1556-4029.2010.01648.x
- Issue published online: 22 FEB 2011
- Article first published online: 6 JAN 2011
- Received 24 Sep. 2009; and in revised form 28 Dec. 2009; accepted 13 Feb. 2010.
- forensic science;
- forensic anthropology;
- long bones;
- bone functional adaptation
Abstract: This study assessed whether obesity significantly affects femoral shape. Femora of 121 white men were divided into two weight classes based on body mass index (BMI) of the deceased. Five external anteroposterior (AP) and mediolateral (ML) measurements were taken at consistent percentages of diaphyseal length. These were then subject to statistical tests. After controlling for age, multivariate statistics show a significant (p < 0.05) effect of BMI on the femur, with the greatest significance in ML measurements. T-tests confirm these dimensions are significantly larger in the overweight (p < 0.05). The effect of BMI on size-transformed and shape-transformed variables was also evaluated, with ANOVA results showing a significant BMI effect on ML size (p < 0.05), but not shape. Significant size-transformed ML variables were then subject to discriminate function analyses with a cross-validation correction. Results show a correct classification rate of 88% in normal weight and 77% in overweight individuals.