Background. Multidisciplinary intervention programs for overweight and obese children mainly focus on reducing bodyweight and body mass index (BMI), but they may also positively impact blood pressure (BP), and cardiorespiratory fitness (CRF), which is a stronger predictor for all-cause mortality than BMI. Objective. To evaluate whether Kids4Fit, a multidisciplinary weight reduction program, has a positive effect on CRF and BP in overweight and obese children in socially deprived areas. Methods. A quasi-experimental study design with a waiting list control period including children who participated in a multidisciplinary intervention program of 12 weeks was set-up. Blood pressure measurements and shuttle-run test (SRT) were performed at baseline, at the start of the intervention, at the end of intervention and after 52 weeks. The effect of Kids4Fit on BP and on SRT scores were analyzed using mixed models. Results. A total of 154 children were included [mean age 8.5 years (SD 1.8)]. No significant change was seen in systolic BP percentiles at 52 weeks after start of the Kids4Fit intervention (β 0.08, (95%CI −0.06, 0.22)). Diastolic BP percentiles increased significantly over time (β 0.20 (0.08, 0.31)). Effect plots showed an initial significant increase of the SRT scores but this effect diluted after the intervention. Conclusion. A local multidisciplinary intervention program in deprived areas had a significant positive effect on CRF, but this effect diluted after the intervention. Diastolic BP percentiles significantly increased over time. However, systolic BP did not change over time.

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Keywords Childhood obesity, diet, hypertension (high blood pressure), multidisciplinary care, physical activity/exercise.
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Journal Family Practice: an international journal
van Leeuwen, J.P.T.M, Andrinopoulou, E-R, Hamoen, M., Paulis, W.D, van Teeffelen, J., Kornelisse, K., … van Middelkoop, M. (2018). The effect of a multidisciplinary intervention program for overweight and obese children on cardiorespiratory fitness and blood pressure. Family Practice: an international journal, 36(2), 147–153. doi:10.1093/fampra/cmy061