Objective: To determine the reproducibility of anthropometric and body composition measures using the HERITAGE Family Study protocol. Design: Anthropometric and body composition measures were obtained on three separate days within a 3-wk period at each of the four HERITAGE Clinical Centers. Subjects: Sixty men and women representative of the HERITAGE subject population, 15 from each of four Clinical Centers. Measurements: Anthropometric measures included eight skinfolds, three girths and one length; and body composition measures included stature, mass, hydrostatic weight, residual volume, and body density, from which relative fat, fat mass and fat-free mass were estimated. Results: Reproducibility as determined by technical error, coefficient of variation, and intraclass correlations was very high for the total sample. For example, intraclass correlations for the total sample generally ranged from 0.95-0.99 for the anthropometric measures, and from 0.97-1.00 for the body composition measures. The results across Clinical Centers were in close agreement with each other and with the pooled data. Conclusions: The reproducibility of anthropometric and body composition measures using the HERITAGE Family Study protocol is sufficiently high that it should be possible to detect small changes in any of these measures and to determine the genetic basis of these changes consequent to a 20 wk endurance training program.
Bibliographical noteFunding Information:
The HERITAGE Family Study is supported by the National Heart, Lung and Blood Institute through the following grants: HL45670 (C. Bouchard, PI); HL47323 (A.S. Leon, PI); HL47317 (D.C. Rao, PI); HL47327 (J.S. Skinner, PI); and HL47321 (J.H. Wil-more, PI). Credit is also given to the University of Minnesota Clinical Research Center, NIH Grant MO1-RR000400. Further, JH Wilmore is supported by the Margie Gurley Seay Centennial Professorship and Art Leon is partially supported by the HL Taylor Professorship in Exercise Science and Health Enhancement. Thanks are expressed to all of the coprincipal investigators, investigators, co-investigators, local project coordinators, research assistants, laboratory technicians, and secretaries who have contributed to this study [see Bouchard et al4]. Finally, the HERITAGE consortium is very thankful to those hard-working families whose participation has made these data possible.
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- Anthropometric measurements
- Body composition