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Postural development in school children: a cross-sectional study.

Danik Lafond1, Martin Descarreaux, Martin C Normand

  • 1Département des Sciences de l'activité physique, Université du Québec à Trois-Rivières, 3351, boul, des Forges, C,P, 500, Trois-Rivières (QC), G9A 5H7, Canada. danik.lafond@uqtr.ca

Chiropractic & Osteopathy
|January 6, 2007
PubMed
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Childhood posture shows a linear trend of increasing sagittal plane translations in the head, pelvis, and knees as children age. This study provides normative data for pediatric postural alignment.

Area of Science:

  • Pediatric orthopedics
  • Biomechanical analysis
  • Developmental kinesiology

Background:

  • Limited quantitative data exists on sagittal plane postural alignment and its evolution in children.
  • Understanding postural development is crucial for identifying potential maturation-related critical phases.

Purpose of the Study:

  • To document the evolution of static, upright sagittal posture in children aged 4-12 years.
  • To identify critical phases in postural maturation.

Main Methods:

  • 1084 children (4-12 years) underwent sagittal postural evaluation using the Biotonix system.
  • Measurements included sagittal translation distances (mm) of the head, shoulder, pelvis, and knee relative to the tarsal joint.
  • Statistical analysis involved two-way ANOVA for age and gender effects and polynomial trend analyses for age-related changes.

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Main Results:

  • A significant linear association was found between increasing child age and anterior translations of the head, shoulder, pelvis, and knee (p < 0.001 for all).
  • Age had a significant main effect on all 4 sagittal postural variables; gender was significant for all except head translation.
  • A notable break in the age-related trend for anterior knee translation occurred between ages 11 and 12 years.

Conclusions:

  • Children aged 4-12 years exhibit a significant linear trend of increasing sagittal plane postural translations.
  • These findings establish preliminary normative data for sagittal plane postural alignment in children.
  • The study highlights the dynamic nature of postural development during childhood.