Abstract

BARRIOS, Yubire et al. Variables antropométricas que estiman adiposidad como predictores de resistencia a la insulina en mujeres posmenopáusicas con exceso de peso.. Rev. Venez. Endocrinol. Metab. [online]. 2013, vol.11, n.1, pp.9-17. ISSN 1690-3110.

Objective: To identify which of the anthropometric variables for estimating adiposity, are predictors of insulin resistance (IR) in postmenopausal Venezuelan women with overweight. Methods: A sample of 67 apparently healthy postmenopausal women aged between 45 and 65, with one year or more since amenorrhea, and with overweight according to the values of body mass index (BMI), was studied. The following anthropometric measurements were determined: weight, height, waist circumference (WC), hip circumference (HC), left upper arm circumference (LUAC), triceps skinfold (TSF), subscapular (TS) and percentage of body fat (% BF). The body mass index (BMI) and waist/hip index (W/H) were calculated. Serum glucose, insulin and estradiol were determined, and the IR was measured by HOMA (homeostasis model assessment). Results: Almost all women screened (98.5%) presented high values for WC, while about 50% of them showed RI and high values of % BF. Mean values for anthropometric variables and indices evaluated were higher for women with insulin resistance, with significant differences (p <0.05) for BMI, the LUAC, the WC and the W/H. According to ROC curves, the cutoff points for BMI and WC were 25.43 kg/m² and 84 cm respectively, these values predict a 97.4% IR in the women studied. Conclusions: A high percentage of the postmenopausal women studied, showed a central distribution of body fat and insulin resistance. The anthropometric measures with the highest predictive power for IR were BMI and WC.

Keywords : Anthropometric variables; insulin resistance; adiposity; postmenopause.

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