Meeuwsen 2010 Clin Nutr
Meeuwsen S, Horgan GW, Elia M (2010) The relationship between BMI and percent body fat, measured by bioelectrical impedance, in a large adult sample is curvilinear and influenced by age and sex. Clin Nutr 29:560-6. |
Meeuwsen S, Horgan GW, Elia M (2010) Clin Nutr
Abstract: OBJECTIVE: The study aimed to establish the effects of age, gender and age-gender interactions on BMI-% fat relationships over a wide range of BMI and age. It also aimed to examine controversies regarding linear or curvilinear BMI-% fat relationships.
METHODS: Body composition was measured using validated bio-impedance equipment (Bodystat) in a large self-selected sample of 23,627 UK adults aged 18-99 (99 % β€70) years, of which 11,582 were males with a mean BMI of 26.3Β±4.7 (sd) kg/m(2), and 12,044 females, with a mean BMI of 25.7Β±5.1 kg/m(2). Multiple regression analysis was used.
RESULTS: BMI progressively increased with age in women and plateaued between 40 and 70 years in men. At a fixed BMI, body fat mass increased with age (1.9 kg/decade), as did % fat (1.1-1.4 % per decade). The relationship between BMI and % fat was found to be curvilinear (quadratic) rather than linear, with a weaker association at lower BMI. There was also a small but significant age-gender interaction.
CONCLUSION: The association between BMI and % body fat is not strong, particularly in the desirable BMI range, is curvilinear rather than linear, and is affected by age.
Copyright Β© 2010 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.
β’ Bioblast editor: Gnaiger E
Labels: MiParea: Gender
Pathology: Aging;senescence, Obesity
Organism: Human Tissue;cell: Fat Preparation: Intact organism
BMI, Fat