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Effects of rocking on neuromuscular development in the premature

D L Clark1, L Cordero, K C Goss

  • 1Department of Anatomy, Ohio State University College of Medicine, Columbus.

Biology of the Neonate
|January 1, 1989
PubMed

Insights

Motion stimulation significantly improved neuromuscular development in premature infants. While weight gain showed a trend, sensory stimulation via rocking is crucial for developmental progress in preterm babies.

Area of Science:

  • Developmental Pediatrics
  • Neonatology
  • Neuroscience

Background:

  • Postnatal development in premature infants can be influenced by external stimuli.
  • Motion stimulation is hypothesized to accelerate developmental trajectories.
  • Preterm infants often exhibit delays in neuromuscular and behavioral development.

Purpose of the Study:

  • To investigate the effects of rocking (motion stimulation) on premature infants' body weight gain and neuromuscular development.
  • To assess the impact of a 2-week rocking intervention on developmental outcomes.
  • To compare developmental progress between infants receiving motion stimulation and a control group.

Main Methods:

  • A randomized controlled study involving 26 premature infants.
  • Treatment group received 15-minute sessions of sinusoidal oscillation, three times daily for 2 weeks.
  • Neuromuscular development was assessed using the Dubowitz examination at baseline, post-treatment, and 2 weeks later.

Main Results:

  • Infants receiving motion stimulation demonstrated significant improvements in overall neuromuscular development compared to controls.
  • Specific gains were observed in passive muscle tone (posture, arm recoil, popliteal angle) and active motility (arm traction, head lag, ventral suspension).
  • Auditory and visual orientation, alertness, and defensive reactions also showed significant improvement in the treatment group.

Conclusions:

  • Motion stimulation significantly enhances neuromuscular development and specific behavioral areas in premature infants.
  • Duration of motion stimulation appears critical for influencing weight gain.
  • This sensory stimulation approach addresses developmental delays commonly seen in preterm infants.

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