Utilization of the Pediatric Modified Dynamic Gait Index: Issues Related to Child Development

Area of Science:

• Pediatric physical therapy
• Developmental pediatrics
• Biomechanics and motor control

Background:

• The Dynamic Gait Index (DGI) is a clinical tool used to assess balance and fall risk in adults.
• Modifications are needed to assess functional mobility in pediatric populations.
• The Pediatric Modified DGI (PM-DGI) was developed to evaluate gait and balance in children.

Purpose of the Study:

• To investigate the performance of typically developing children on the Pediatric Modified DGI (PM-DGI).
• To analyze age-related differences in PM-DGI scores among children.
• To identify specific gait and balance tasks that vary with age in children.

Main Methods:

• Cross-sectional study of 74 typically developing children aged 7–18 years.
• Administration of the Pediatric Modified DGI (PM-DGI).
• Statistical analysis using Kruskal-Wallis and Mann-Whitney U tests to compare three age groups (7–10, 11–14, 15–18 years).

Main Results:

• Significant differences in PM-DGI scores were found between the age groups (p < .05).
• Post hoc analysis revealed significant differences between younger (7–10) and older (15–18) groups, and between middle (11–14) and older (15–18) groups.
• Age-related differences were most notable in tasks involving head turns (horizontal and vertical) and pivot turns.

Conclusions:

• A child's age significantly influences performance on the Pediatric Modified DGI.
• The PM-DGI is a sensitive tool for detecting age-related changes in functional mobility in children.
• Future research should consider sensory system development in pediatric functional mobility assessments.