Motor performance in the third, not the second month, predicts further motor development

Area of Science:

• Pediatric Neurology
• Developmental Pediatrics
• Motor Development Assessment

Background:

• Early detection of developmental delays is crucial for timely intervention.
• Predictive markers for long-term motor outcomes in infants are actively researched.
• Standardized assessments are needed to evaluate infant motor performance accurately.

Purpose of the Study:

• To determine if motor performance at two or three months of age is a superior predictor of further infant development.
• To compare the predictive validity of early motor assessments for long-term developmental trajectories.
• To identify optimal timing for assessing infant motor skills to forecast future developmental milestones.

Main Methods:

• A cohort of 111 infants was assessed at 2, 3, 6, and 9 months of age.
• Global motor development was evaluated by a neurologist and a physiotherapist.
• Qualitative motor assessments were conducted by a physiotherapist at 2 and 3 months.

Main Results:

• Physiotherapeutic assessments at three months showed higher concordance with neurological assessments.
• Adequate motor performance at three months predicted a motor skill level of at least seven months by nine months of age.
• A qualitative score exceeding 7 out of 15 points at three months predicted appropriate nine-month motor development.

Conclusions:

• The third month of life represents a critical and more accurate window for assessing predictive infant motor development.
• Early identification of motor performance at three months can reliably forecast developmental trajectories.
• Qualitative motor assessments in the third month are valuable predictors of long-term motor outcomes.