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European Journal of Pediatrics

, Volume 167, Issue 5, pp 563–568 | Cite as

Predictors of 6-minute walk test and 12-minute walk/run test in obese children and adolescents

  • Patrick CaldersEmail author
  • Benedicte Deforche
  • Sabine Verschelde
  • Jacques Bouckaert
  • Frederic Chevalier
  • Eddy Bassle
  • Ann Tanghe
  • Patrick De Bode
  • Hilde Franckx
Original Paper

Abstract

The purpose of this study was to identify predictors of the distance achieved during a 6-minute walk test and a 12-minute walk/run test (Cooper test) in obese children and adolescents and to evaluate the influence of a residential treatment on the association of these predictors with the distance. A search of the Revalidation Centre Zeepreventorium (De Haan, Belgium) medical records database of all children and adolescents (age 10 to 18 yrs) treated for obesity between September 2003 and February 2006, revealed 65 charts with all relevant data (anthropometrical, maximal graded exercise, lung function, 6-minute walk test and 12-minute walk/run test) at admission as well as after 3 months treatment. The multidisciplinary treatment has a positive influence on anthropometrical variables, endurance capacity, vital capacity, and residual volume (p < 0.05). The distance covered during the 6-minute walk test and the 12-minute walk/run test is correlated with all anthropometrical data and peak VO2 (p < 0.05). After 3 months of treatment, bivariate correlation was stronger for almost every parameter compared to admission. Following a stepwise regression, BMI z-score is a dominant predictor of both field tests at admission and after 3 months treatment. VO2peak contributes only significantly in the 12-minute walk/run test at admission. Conclusion: In obese children and adolescents BMI z-score is the most dominant predictor of the variability in performances on the 6-minute walk test and the 12-minute walk/run test at admission as well as after 3 months of treatment.

Keywords

Obesity 6-minute walk test 12-minute walk/run test BMI z-score VO2peak 

Abbreviations

peakVO2, VO2peak

peak oxygen consumption

6MWT

6-minute walk test

6MWD

6-minute walk distance

BMI

body mass index

AHR

airway hyperresponsiveness

FVC

forced vital capacity

FEV1

forced expiratory volume

PEF

peak expiratory flow

RC

revalidation centre

FM

fat mass

FFM

fat free mass

TBW

total body water

BIA

bioelectrical impedance analysis

Rpm

rounds per minute

SRAW

specific airway resistance

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Patrick Calders
    • 1
    Email author
  • Benedicte Deforche
    • 2
  • Sabine Verschelde
    • 1
  • Jacques Bouckaert
    • 2
  • Frederic Chevalier
    • 3
  • Eddy Bassle
    • 3
  • Ann Tanghe
    • 3
  • Patrick De Bode
    • 3
  • Hilde Franckx
    • 3
  1. 1.Revalidation Sciences and Physiotherapy GhentCampus Heymans 1B3GhentBelgium
  2. 2.Department of Movement and Sports SciencesGhentBelgium
  3. 3.Revalidation Centre ZeepreventoriumDe HaanBelgium

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