Metabolic syndrome and physical activity measured by pedometer among adolescents

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Sofien Regaieg
Faten Hadj kacem
Nadia Charfi
Dorra Ghorbel
Rim Marrakchi
Sourour Yaich
Jamel Dammak
Kamel Jamoussi
Mohamed Abid

Abstract

Background: The aim of this study was to describe the prevalence of metabolic syndrome and to study the association of physical activity
measured by pedometer with the metabolic syndrome components, in a sample of overweight and obese adolescents from Sfax City.
Methods: This study concerned 51 obese and overweight adolescents (28 girls and 23 boys), between the ages of 15 and 18 years, recruited
by the unit of obesity and metabolic syndrome department of endocrinology, Hedi Chaker Hospital, University of Sfax, between december 2012
and october 2013. Metabolic syndrome was defined with the International Diabetes Federation (IDF) criteria. Physical activity was monitored
with pedometer (Digi-Walker SW-200; Yamax Co, Tokyo, Japan)
Results: The frequency of metabolic syndrome was 21.6%. It was significantly higher in obese (25%) than in overweight (15,81%) adolescents
(p=0.04). The most common component, associated with abdominal obesity, was hypoHDLemia observed in 58.8 % of the sample.
The average steps / day measured by pedometer was significantly higher in subjects without metabolic syndrome than with (9648, 25±2297,
726 vs 7365, 91±1505, 65 steps/day; p=0, 03). Pedometer determined steps/day was inversely correlated with waist circumference (P<0.05),
blood pressure (P<0.05) and triglycerides (P<0.05).
Conclusion: Metabolic syndrome is prevalent in our young population. A more physically active lifestyle appears to be associated with lower
probability of metabolic syndrome.

Keywords:

Obesity, adolescent, metabolic syndrome, physical activity, pedometer

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