Relationship between segmental trunk control and gross motor development in typically developing infants aged from 4...

Area of Science:

• Pediatric motor development
• Infant motor control
• Gross motor skill acquisition

Background:

• Trunk control is crucial for gross motor development, but clinical data is limited.
• This study investigates the longitudinal relationship between segmental trunk control and gross motor development in infants.
• Previous assumptions about trunk control and motor development lacked empirical validation.

Purpose of the Study:

• To examine the longitudinal development of segmental trunk control in infants.
• To assess the relationship between trunk control and gross motor development from 4 to 12 months.
• To provide clinical data validating the connection between trunk control and motor milestones.

Main Methods:

• Recruited 20 healthy, full-term infants.
• Assessed infants monthly from 4 to 12 months.
• Utilized the Segmental Assessment of Trunk Control and Alberta Infant Motor Scale.

Main Results:

• Segmental trunk control demonstrated a clear developmental trend.
• Static vertical upright trunk control emerged before active and reactive control.
• Significant correlations (p < 0.004) were observed between trunk control and gross motor skills in prone and sitting positions from 8 months onwards.

Conclusions:

• Preliminary clinical evidence supports the inter-dependency of trunk control and gross motor development.
• Upright trunk control is particularly important as infants gain functional upright skills.
• A dual approach to training trunk control and gross motor skills may benefit infants with movement disorders.