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Reference Values in the 6-Minute Walk Test in Chilean Children Aged 3-10 Years and Relationship With Cardiometabolic Risk. | LitMetric

AI Article Synopsis

  • The study assessed the 6-minute walking test (6MWT) performance and cardiometabolic risk factors in 1,165 healthy Chilean children aged 3-10 years, aiming to establish age- and sex-specific reference values.
  • Results showed a significant prevalence of overweight and obesity among preschool and school-age children, with walking performance improving yearly from ages 3 to 10 based on various health metrics.
  • A reference equation and percentile curve for 6MWT performance were created, highlighting that performance is primarily influenced by age but also affected by factors like resting heart rate and blood pressure.

Article Abstract

Purpose: The aim of this study was to evaluate the performance of healthy Chilean children aged 3-10 years in the 6-minute walking test (6MWT) and cardiometabolic risk variables and to determine sex- and age-specific reference values.

Methods: This study involved 1165 healthy children (age = 6.36 [1.70] y old). The 6MWT was used to evaluate exercise performance. Furthermore, anthropometric measures were collected, like weight, height, body mass index, waist circumference, and skin folds. Resting heart rate and blood pressure (BP) were also evaluated.

Results: The prevalence of overweight and obesity was 35.0% and 25.4% in preschoolers and 29.0% and 36.2% in school-age children, respectively, showing significant differences (P < .05) between age groups. The distance walked (6-min walk distance) increased significantly year on year at ages from 3 to 10 years. According to the regression analysis, 6MWT performance was positively related to age, systolic BP, and height, whereas it was negatively related to ∑4 skinfold fat, resting heart rate, diastolic BP, and waist circumference.

Conclusions: This study provides a reference equation and an age- and sex-adjusted percentile curve to assess the predicted 6MWT performance in a cohort of prepubertal Chilean children. The 6-minute walk distance depends mainly on age; however, other variables, such as resting heart rate, BP, skinfold fat, and waist circumference, add significant information and should be taken into account.

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Source
http://dx.doi.org/10.1123/pes.2023-0127DOI Listing

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