Differences of respiratory function according to level of the gross motor function classification system in children...

Area of Science:

• Pediatric Pulmonology
• Neurology
• Rehabilitation Medicine

Background:

• Cerebral palsy (CP) is a group of disorders affecting movement and posture, often impacting respiratory function.
• Gross Motor Function Classification System (GMFCS) levels categorize motor function in children with CP.
• Respiratory muscle strength and lung capacity are crucial for overall health and can be affected by motor impairments.

Purpose of the Study:

• To investigate differences in lung capacity and respiratory muscle strength among children with cerebral palsy based on GMFCS levels.
• To assess the relationship between motor function severity (GMFCS) and respiratory function parameters.

Main Methods:

• Recruited 49 children with CP classified as GMFCS levels I, II, or III.
• Conducted pulmonary function tests (PFTs) including forced vital capacity (FVC), forced expiratory volume at one second (FEV1), and slow vital capacity (SVC).
• Performed respiratory pressure testing to measure maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP).

Main Results:

• Children in GMFCS level III demonstrated significantly lower PFT scores (FVC, FEV1, SVC) and respiratory pressures (MIP, MEP) compared to GMFCS levels I and II.
• Post hoc analysis confirmed significant differences in FVC, FEV1, MIP, and MEP between GMFCS level III and the other groups.
• A significant difference in SVC was also noted between GMFCS level II and III.

Conclusions:

• Children with CP and lower motor function (higher GMFCS levels) exhibit poorer pulmonary capacity and respiratory muscle weakness.
• Clinical assessment of lung capacity and respiratory muscle strength is essential for children with CP, particularly those with limited physical activity.
• Findings underscore the importance of respiratory care in managing children with cerebral palsy and varying degrees of motor impairment.