Sedentarism affects body fat mass index and fat-free mass index in adults aged 18 to 98 years.

Détails

ID Serval
serval:BIB_E62E6D7A3456
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Sedentarism affects body fat mass index and fat-free mass index in adults aged 18 to 98 years.
Périodique
Nutrition
Auteur⸱e⸱s
Kyle U.G., Morabia A., Schutz Y., Pichard C.
ISSN
0899-9007 (Print)
ISSN-L
0899-9007
Statut éditorial
Publié
Date de publication
03/2004
Volume
20
Numéro
3
Pages
255-260
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
OBJECTIVE: Body mass index does not discriminate body fat from fat-free mass or determine changes in these parameters with physical activity and aging. Body fat mass index (BFMI) and fat-free mass index (FFMI) permit comparisons of subjects with different heights. This study evaluated differences in body mass index, BFMI, and FFMI in physically active and sedentary subjects younger and older than 60 y and determined the association between physical activity, age, and body composition parameters in a healthy white population between ages 18 and 98 y.
METHODS: Body fat and fat-free mass were determined in healthy white men (n = 3549) and women (n = 3184), between ages 18 and 98 y, by bioelectrical impedance analysis. BFMI and FFMI (kg/m2) were calculated. Physical activity was defined as at least 3 h/wk of endurance-type activity for at least 2 mo.
RESULTS: Physically active as opposed to sedentary subjects were more likely to have a low BFMI (men: odds ratio [OR], 1.4; confidence interval [CI], 0.7-2.5; women: OR 1.9, CI 1.6-2.2) and less likely to have very high BFMI (men: OR, 0.2; CI, 0.1-0.2; women: OR, 0.1; CI, 0.02-0.2), low FFMI (men: OR, 0.5; CI, 0.3-0.9; women: OR, 0.7; CI, 0.6-0.9), or very high FFMI (men: OR, 0.6; CI, 0.4-0.8; women: OR, 0.7; CI, 0.5-1.0). Compared with subjects younger than 60 y, those older than 60 y were more like to have very high BFMI (men: OR, 6.5; CI, 4.5-9.3; women: OR, 14.0; CI, 9.6-20.5), and women 60 y and older were less likely to have a low BFMI (OR, 0.4; CI, 0.2-0.5).
CONCLUSIONS: A clear association was found between low physical activity or age and height-normalized body composition parameters (BFMI and FFMI) derived from bioelectrical impedance analysis. Physically active subjects were more likely to have high or very high or low FFMI. Older subjects had higher body weights and BFMI.
Mots-clé
Adipose Tissue/physiology, Adolescent, Adult, Age Factors, Aged, Aged, 80 and over, Aging/physiology, Body Composition, Body Mass Index, Body Weight, Confidence Intervals, Electric Impedance, Exercise/physiology, Female, Humans, Male, Middle Aged, Muscle, Skeletal/physiology, Odds Ratio, Sex Factors
Pubmed
Web of science
Création de la notice
21/01/2008 14:07
Dernière modification de la notice
20/08/2019 17:09
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