An Aquatic Treadmill Alters Lower Limb Walking Dynamics in Typically Developing Children and Children with Cerebral...

Area of Science:

• Biomechanics
• Pediatric Gait Analysis
• Rehabilitation Technology

Background:

• Children with cerebral palsy (CP) often exhibit altered walking patterns.
• Understanding gait biomechanics is crucial for developing effective interventions.
• Aquatic therapy is a recognized modality for motor rehabilitation.

Purpose of the Study:

• To investigate the impact of a speed-modulated aquatic treadmill (AT) on the walking biomechanics of children.
• To compare gait regularity in children with CP and typically developing (TD) children under different treadmill conditions.
• To assess the effect of treadmill speed on gait complexity in pediatric populations.

Main Methods:

• A block-randomized crossover study design was employed.
• Eight children with CP and fifteen TD children participated.
• Joint angles were measured using inertial measurement units to calculate sample entropy (SE) for gait regularity analysis across aquatic treadmill (AT) and dry treadmill (DT) conditions at varying speeds.

Main Results:

• Children with CP demonstrated lower SE values for hip, knee, and ankle joints in the AT environment and at slower speeds compared to faster speeds.
• Typically developing children showed changes in SE values primarily at the knee and ankle joints.
• Lower SE values indicate increased gait regularity, suggesting a potential benefit of AT and slower speeds.

Conclusions:

• Aquatic treadmills show potential for acute improvement in walking biomechanics for children with CP.
• Slower treadmill speeds and the AT environment appear to enhance gait regularity in pediatric populations.
• Further research is warranted to explore the long-term efficacy of aquatic treadmills as a gait rehabilitation strategy for children with CP.