Familial aggregation of subcutaneous fat patterning: Principal components of skinfolds in the Québec family study

✍ Scribed by Zhaohai Li; Treva Rice; Louis Pérusse; Claude Bouchard; D. C. Rao

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 667 KB
• Volume: 8
• Category: Article
• ISSN: 1042-0533
• DOI: 10.1002/(sici)1520-6300(1996)8:4<535::aid-ajhb13>3.0.co;2-n

✦ Synopsis

Familial resemblance was examined for each of the principal components arising from a n analysis of six skinfolds (triceps, biceps, subscapular, abdominal, suprailiac, and medial calf) measured in 1,237 participants of the Quehec Family Study. Most of the phenotypic variance among the skinfolds (83%) was accounted for by the first two principal components. Examination of the skinfold loadings on each principal component, as well as intraindividual cross-trait correlations with other body composition and fat pattern measures (body mass index; total fat mass and fat-free mass estimated from body density obtained through underwater weighing; the sum of six skinfolds; and the ratio of trunk to extremity skinfolds) support the interpretation of the first component as a general measure of adiposity and