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Updated: Aug 12, 2025

Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings
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Ground Reaction Forces in Children's Gait.

Nancy L Greer1, Joseph Hamill2, Kevin R Campbell3

  • 1School of Physical Education and Recreation, 110 Cooke Hall, University of Minnesota, Minneapolis, MN 55455, USA.

Pediatric Exercise Science
|February 2, 2023
PubMed
Summary
This summary is machine-generated.

Young children (3-4 years) exhibit distinct walking ground reaction forces compared to adults, with sex-based differences emerging early. Boys show greater vertical forces and mediolateral excursions than girls.

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Area of Science:

  • Pediatrics
  • Biomechanics
  • Human Movement Science

Background:

  • Understanding pediatric gait development is crucial for identifying atypical movement patterns.
  • Ground reaction forces (GRFs) provide key insights into the biomechanics of walking.

Purpose of the Study:

  • To analyze and compare GRF patterns in 3- and 4-year-old children with adult data.
  • To investigate sex-based differences in pediatric GRF during barefoot walking.

Main Methods:

  • Observed GRF patterns in 18 children (3-4 years old) walking barefoot.
  • Evaluated vertical, anteroposterior, and mediolateral force components at self-selected pace.
  • Compared pediatric data to established adult biomechanical norms.

Main Results:

  • Children exhibited higher relative vertical forces, lower minimum vertical forces, earlier braking-to-propulsion transitions, and greater mediolateral excursions than adults.
  • Boys demonstrated greater vertical peak force differences, lower minimum forces, increased braking forces, and higher mediolateral excursions compared to girls.

Conclusions:

  • Children aged 3-4 years display unique GRF patterns distinct from adults.
  • Significant sex-based differences in GRF parameters are observable in young children.