Exercise intensity based on heart rate while walking in spastic cerebral palsy

Area of Science:

• Exercise Physiology
• Neurology
• Pediatrics

Background:

• Spastic cerebral palsy (CP) affects motor function, impacting physical activity.
• Understanding exercise intensity in individuals with CP is crucial for safe and effective rehabilitation.

Purpose of the Study:

• To evaluate heart rate (HR) as a measure of exercise intensity during walking in individuals with spastic cerebral palsy (CP).
• To compare exercise responses between different Gross Motor Function Classification System (GMFCS) levels in CP and healthy controls.

Main Methods:

• Recruited 17 participants with spastic CP (GMFCS levels I-III) and 7 healthy controls.
• Measured heart rate and walking speed during a standardized walking test.
• Analyzed HR responses relative to GMFCS level and compared with controls.

Main Results:

• Individuals with CP, even at GMFCS level I, exhibited significantly higher HRs during walking compared to controls, despite similar walking speeds.
• Walking speed was reduced in GMFCS levels II and III, accompanied by significantly elevated HRs.
• A substantial proportion of participants with GMFCS levels II and III (70%) reached HRs over 150 bpm during walking.

Conclusions:

• Walking elicits moderate exercise intensity in individuals with spastic CP, generally appropriate for exercise.
• For individuals with more severe CP (GMFCS levels II-III), walking may exceed recommended exercise intensities and could be detrimental.
• Heart rate monitoring is a valuable tool for assessing and managing exercise intensity in individuals with CP during ambulation.