Abstract

VASQUEZ, Fabian et al. Physical fitness and insulin sensitivity in a group of obese children from 8 to 13 years of age by puberal state. Nutr. Hosp. [online]. 2017, vol.34, n.4, pp.808-813. ISSN 1699-5198.  https://dx.doi.org/10.20960/nh.61.

Introduction: Insulin resistance is the most common metabolic disorder associated with obesity and highest cardiometabolic risk in children. If the inadequate physical condition is added, they have a high risk of developing cardiometabolic complications at an early age. Objective: To evaluate physical fitness and insulin sensitivity in obese school children of 8-13 years of age from three public schools in the Metropolitan Region of Santiago. Methods: the study was carried out in 61 obese school children (25 Tanner I-II y 36 Tanner III-V). Anthropometric measures, Tanner stages, body composition (using 4-compartment model), physical fitness with the six-minute test and laboratory indicators, glucose, insulin and HOMA-IR, were measured. Metabolic syndrome was diagnosed according to the criteria of Cook. Results: Obese prepubertal and pubertal children and adolescents showed inadequate physical fitness, reflected in the distance and heart rate during and after the six-minute test. In turn, the sample has a high prevalence of insulin resistance in conjunction with metabolic syndrome. Conclusions: Regardless of the pubertal status, obese schoolchildren have a poor physical fitness and decreased insulin sensitivity reflected in a compensatory hyperinsulinemia.

Keywords : Childhood obesity; Physical fitness; Insulin sensitivity.

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