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Preterm Birth Affects Early Motor Development in Pigs.

Charlotte Vanden Hole1, Miriam Ayuso1, Peter Aerts2

  • 1Laboratory of Comparative Perinatal Development, Department of Veterinary Sciences, Faculty of Biomedical, Pharmaceutical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium.

Frontiers in Pediatrics
|October 25, 2021
PubMed
Summary

Preterm pigs show rapid postnatal adaptation in gait, with early interventions potentially improving motor skills in both pigs and preterm infants. This study used pigs to model preterm birth effects on neuromotor development.

Keywords:
birth weightlocomotionpigprematurityspatio-temporal gait analysis

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Area of Science:

  • Comparative Medicine
  • Developmental Neuroscience
  • Animal Models

Background:

  • Preterm birth is linked to neuromotor dysfunction, but the mechanisms are unclear.
  • Postnatal development, not just post-conceptional age, influences neuromuscular maturation.
  • Early interventions may enhance motor skills in preterm infants.

Purpose of the Study:

  • Investigate neuromotor development in preterm infants using a pig model.
  • Analyze gait patterns and motor skills in preterm versus term piglets.
  • Assess the impact of reduced gestational age on motor development.

Main Methods:

  • Cesarean delivery and artificial rearing of preterm and term piglets.
  • Spatiotemporal gait analysis of locomotion from postnatal days 3 to 18.
  • Controlled for body weight and sex in neuromotor skill assessments.

Main Results:

  • Both preterm and term piglets achieved mature neuromotor skills by postnatal days 3-5.
  • Preterm piglets exhibited shorter steps and higher gait frequency than term piglets.
  • Male and low birth weight preterm piglets showed the most pronounced gait differences.

Conclusions:

  • Piglets delivered preterm demonstrate rapid postnatal adaptation of gait patterns.
  • Findings suggest similarities between pig and human preterm infant gait development.
  • Early physical training and medical interventions may benefit motor development in preterm neonates.