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Nutrición Hospitalaria

Print version ISSN 0212-1611

Abstract

GOMEZ-CABELLO, A. et al. Increased risk of obesity and central obesity in sedentary postmenopausal women. Nutr. Hosp. [online]. 2012, vol.27, n.3, pp.865-870. ISSN 0212-1611.  http://dx.doi.org/10.3305/nh.2012.27.3.5668.

Aims: To establish the influence of a sedentary behavior (sit time) on body composition in elderly women from Aragón. Methods: A total of 457 women participated in the study. Hours of walking were used to define the active behavior (> 1 vs. < 1 h/day) and hours of sitting were used to establish the sedentary behavior (> 4 vs. < 4 h/day). Anthropometric evaluation was conducted following the ISAK recommendations. Fat mass was estimated through electrical bio-impedance. Differences between groups were analyzed by ANOVA and logistic regression analysis was used to study the association between active and sedentary behaviors with body composition. Results: The sedentary group had higher weight, BMI, waist circumference and fat mass than the non-sedentary group (all p < 0.05). In addition, those women who sat more than 4 h/day had 1.7, 2.7 and 1.7-fold higher odds ratio for having overweight, obesity and central obesity, respectively, regardless of the hours of walking (95% IC [1.006-2.739]; [1.518-4.491] y [1.154-2.565]). When activity and sedentary levels were studied together, active and sedentary women were 2.0 times more likely to be overweight (95% CI [0.995-3.961]), 4.4 to be obese (95% CI [2.101-9.264]) and 2.3 for having central obesity (95% CI [1.329-3.939]) than women with an active and non-sedentary behavior. Conclusion: Being sitting more than 4 hours a day increases the risk of overweight, obesity and central obesity, regardless of the hours of walking in postmenopausal women.

Keywords : Physical activity; Sedentary; Adiposity; Aging.

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