European Journal of Pediatrics

, Volume 176, Issue 5, pp 655–660 | Cite as

The effect of a physical activity consultation on body mass index z-score of overweight adolescents: results from a pediatric outpatient obesity clinic

Original Article

Abstract

Physical activity (PA) is recognized as having many health benefits. Despite of all the efforts, the majority of the overweight adolescents still present low levels of PA. PA consultation can be a cost-effective way of enhancing PA and improve weight status among overweight adolescents. The main aim of this study was to analyze whether adolescents attending a PA consultation in a clinical setting show more therapeutic success at 6 months, based on body mass index (BMI) z-score and waist circumference (WC), compared to those only followed by the pediatrician and nutritionist. Clinical records from 396 patients were analyzed: PA consultation (PAc) group, n = 198; standard consultation (STc) group, n = 198. Baseline differences between groups were analyzed using chi-square and independent sample t tests. Changes within groups and between groups were analyzed using paired sample t tests and independent sample t tests, respectively. Patients in both groups decreased their BMI z-score. The PAc has shown a higher decrease in the BMI z-score (PAc −0.12, p < 0.0001; STc −0.05, p < 0.0001). The WC of the PAc group has increased 2.2 cm less than the one of the STc group (p < 0.005). The difference in waist-to-height ratio between the PAc and STc groups was of 0.015 (p < 0.005), showing a trend to decrease in the PAc group (−0.005, p = 172).

Conclusion: Although the success of adolescent obesity management cannot be based only on BMI, a PA consultation on the top of the traditional pediatric and nutrition interventions may further improve the BMI z-score outcome at 6 months.

What is Known:

Physical activity (PA) plays an important role in weight management. However, most adolescents, in particular those who are overweight, present low levels of PA.

There is no consensus whether PA counseling influences PA behavior.

What is New:

A PA consultation (a structured form of PA counseling) as part of a multidisciplinary team may further be useful for weight management of overweight adolescents followed at the clinical setting, compared to the traditional approach including only the pediatric and nutrition consultations.

Waist-to-height ratio may be more suitable than waist circumference per se to track changes in abdominal adiposity among adolescents who are still growing.

Keywords

Adolescents Overweight Weight management Physical activity consultation Behavior change 

Abbreviations

BMI

Body mass index

PA

Physical activity

PAc

Physical activity consultation

STc

Standard consultation

WC

Waist circumference

WHtR

Waist-to-height ratio

Notes

Authors’ contributions

Both authors contributed to writing and reviewing the manuscript and approved the manuscript prior to submission. Both authors meet the standard criteria for authorship.

Compliance with ethical standards

This study was approved by the research ethics committee of the Faculty of Medicine of the University of Lisbon, Portugal (271/2016), and is in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.Lisbon Academic Medical Centre (CAML)LisbonPortugal
  2. 2.Pediatric Obesity Clinic, Department of PediatricsHospital de Santa MariaLisbonPortugal
  3. 3.Rheumatology Research Unit, Molecular Medicine Institute, Faculty of MedicineUniversity of LisbonLisbonPortugal

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