Background: Lifestyle interventions are basic tool to treat obesity in the youth. They prevent from civilisation diseases. Globally, there are many programmes including regular meetings with dieticians, exercise specialists, and others. Results are promising, although theres no consensus regarding one model of recommended diet, exercises intensity and frequency of interventions.
Objective and hypotheses: Assessment of preliminary results of PoZdro!. Analysis of factors affecting reduction of body mass and change in body composition in programme participants.
Method: 870 adolescents with excessive body mass (BMI ≥90 pc), age 13.8±0.7 years, 388 (44.6%) girls, 482 (55.4%) boys were included in a two-year programme of lifestyle interventions. During the first year 6 interventions were realised, everyone included meeting with physician, dietician, exercise specialist, and psychologist, at six-week intervals at the beginning, and at three-month intervals in later period. Healthy diet, especially reduction of simple carbohydrates and regular exercises of moderate intensity were recommended. Laboratory tests (OGTT, HOMA-IR, lipid parameters, ALT) were performed at the beginning. Anthropometric parameters (height, mass, WHR, body composition) were evaluated during each intervention.
Results: 870 participants started programme, 125 (14.4%) have already had six interventions. Significant decrease in BMI and WHR was observed at each visit. BMI fell down from 26.77±3.06 to 25.97±3.06 at six visit, and WHR from 0.96±2.49 to 0.87±0.07. Reduction of body fat percentage (BFM (%)) from 30.07±7.67 to 27.5±7.84 and absolute body fat mass (BFM (kg)) from 22.79±7.75 to 21±7.15, increase in absolute muscle mass (MM (kg)) from 49.9 to 52.16±8.71 were stated. Decrease in BMI centile (pcBMI) at the last visit was observed in 311 (49.9%) participants, no changes in 175 (28.1%), and increase in 137 (22%). Change in BMI correlated inversely with baseline pcBMI (r=−0.102, P=0.011) and baseline MM (kg) (r=−0.116, P=0.004). Change in BFM (%) was inversely correlated with the baseline BFM (%) (r=−0.262, P<0.001) and positively correlated with baseline MM (kg) (r=0.081, P<0.001). Change in MM (kg) correlated positively with baseline WHR (r=0.120, P=0.003) and BFM (%) (r=0.156, P<0.001).
Conclusion: PoZdro! programme resulted in significant reduction of BMI and WHR and improvement in body composition. Participants with higher baseline BMI and MM (kg) achieved greater decrease in BMI. Changes in body composition were greater in more obese adolescents.
10 - 12 Sep 2016
European Society for Paediatric Endocrinology