Do Infants at Risk of Developing Cerebral Palsy or Other Neurodevelopmental Disorders Learn What They Practice?

Area of Science:

• Pediatric Neurorehabilitation
• Developmental Pediatrics
• Motor Learning in Infancy

Background:

• Children at risk for cerebral palsy (CP) and neurodevelopmental disorders often have motor delays.
• Early intervention aims to optimize developmental trajectories.
• The "learn what you practice" hypothesis suggests targeted training enhances specific skill development.

Purpose of the Study:

• To test if infants at risk for CP learn what they practice, showing faster development in trained areas (hand use or mobility) versus untrained areas.
• To evaluate the impact of targeted hand use and mobility training on motor development in at-risk infants.

Main Methods:

• Secondary analysis of the Small Step Randomized Control Trial involving 19 infants.
• Intervention included targeted hand use and mobility training over six time points.
• Assessed using Peabody Developmental Motor Scales, Gross Motor Function Measure-66, and Hand Assessment for Infants.

Main Results:

• Gross motor function improved significantly more after mobility training compared to hand use training.
• Fine motor function showed similar improvements regardless of training type (mobility or hand use).
• Initial training period yielded significant improvements in both gross and fine motor skills, independent of final diagnosis.

Conclusions:

• The "learn what you practice" principle was strongly supported, particularly for gross motor development.
• Targeted motor interventions can lead to specific skill enhancements in infants at risk for developmental disorders.
• Developmental gains were observed irrespective of the child's diagnosis at two years of age.