Author/Authors :
Kalantari, Naser Department of Community Nutrition - School of Nutrition and Food Sciences - Shahid Beheshti University of Medical Sciences, Tehran , Keshavarz Mohammadi, Nastaran Department of Public Health - Shahid Beheshti University of Medical Sciences, Tehran , Malmir, Hanieh Department of Community Nutrition - School of Nutrition and Biochemistry - Tehran University of Medical Sciences, Tehran , Ashoori, Narjes Department of Community Nutrition - School of Nutrition and Food Sciences - Shahid Beheshti University of Medical Sciences, Tehran , Doaei, Saeid Student Research Committee - Department of community nutrition - Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute - Shahid Beheshti University of Medical Sciences, Tehran , Rafeifar, Shahram Department of Health Education and Promotion- Ministry of Health, Tehran , Eini‑Zinab, Hassan Department of Community Nutrition - School of Nutrition and Food Sciences - Shahid Beheshti University of Medical Sciences, Tehran , Aminifard, Atefeh Department of Food Industry - School of Food Sciences and Industry - Islamic Azad University, Khouzestan , Abdi, Sheyda Department of Nutrition - School of Nutrition and Food Sciences - Tabriz University of Medical Sciences, Tabriz , Gholamalizadeh, Maryam Student Research Committee - Cancer Research Center - Shahid Beheshti University of Medical Sciences, Tehran
Abstract :
Background: Obesity in adolescence is the strongest risk factor for obesity in adulthood. This study aimed to evaluate the effects of a comprehensive lifestyle intervention on different anthropometric indices in 12–16‑year‑old boy adolescents after 12 Weeks of Intervention.
Methods: A total of 96 male adolescents from two schools participated in this study. The schools were randomly assigned to intervention (53 students) and control school (43 students). Height and weight of students were measured and their body mass index (BMI) was calculated. Body fat percent (BF) and body muscle percent (BM) was assessed using a bioimpedance analyzer considering the age, gender, and height of students at baseline and after intervention. The obesity reduction intervention was implemented in the intervention school based on the Ottawa charter for health promotion.
Results: Twelve weeks of intervention decreased BF percent in the intervention group in comparison with the control group (decreased by 1.81% in the intervention group and increased by 0.39% in the control group, P < 0.01). However, weight, BMI, and BM did not change signifcantly. Conclusions: The result of this study showed that a comprehensive lifestyle intervention decreased the body fat percent in obese adolescents, although these changes was not reflected in the BMI. It is possible that BMI is not a good indicator in assessment of the success of obesity management intervention.
Keywords :
Adolescence obesity , BMI , body composition , lifestyle intervention
