The mechanism of force transference in feet of children ages two to six

Mingyu Hu1, Nan Zhou1, Bo Xu1

  • 1National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, PR China.

Gait & Posture
|March 1, 2017
PubMed

Insights

This study developed an algorithm to measure plantar force in children aged 2-6. Findings reveal developing foot arches and shifting force distribution patterns as children grow, crucial for understanding gait development.

Area of Science:

  • Biomechanics
  • Pediatric Gait Analysis
  • Human Locomotion

Background:

  • Understanding pediatric foot development is crucial for identifying potential gait abnormalities.
  • Plantar force distribution analysis provides insights into the biomechanical function of the foot during walking.
  • Limited data exists on the quantitative changes in plantar force transference during early childhood.

Purpose of the Study:

  • To design and validate an algorithm for quantifying plantar force transference in children aged 2-6 years.
  • To analyze the developmental changes in relative force-time integral (FTIrel) distribution across different foot regions.
  • To investigate the role of developing foot arches in force transmission during gait.

Main Methods:

  • Recruited 319 healthy children (ages 2-6) with normal gait and BMI.
  • Measured plantar force distributions, dividing the foot into ten regions.
  • Calculated relative force-time integral (FTIrel) for each region to assess force transference.

Main Results:

  • FTIrel significantly transferred along transverse and longitudinal arches.
  • Children aged 2-3 showed forefoot/toe loading with posterior-to-anterior force shift.
  • Children aged 5-6 exhibited heel loading with anterior-to-posterior and lateral-to-medial force shifts.
  • Mid-foot loading decreased with age, indicating arch development.

Conclusions:

  • The developed algorithm effectively quantifies plantar force transference in children.
  • Foot arch development (transverse and longitudinal) begins in toddlerhood.
  • Arches are vital for the windlass mechanism and facilitate force transference during walking, crucial for normal gait development.

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