An Acceleration-Based Gait Assessment Method for Children with Cerebral Palsy

Area of Science:

• Biomedical Engineering
• Clinical Biomechanics
• Pediatric Rehabilitation

Background:

• Cerebral palsy (CP) significantly impacts motor function and gait.
• Objective assessment tools are crucial for CP diagnosis and therapy.
• Current gait analysis methods may lack objectivity or accessibility.

Purpose of the Study:

• To develop an objective, acceleration-based gait assessment tool for children with CP.
• To establish a method for evaluating the degree of gait abnormality in CP patients.
• To aid in clinical diagnosis and rehabilitation therapy for CP.

Main Methods:

• Utilized three inertial measurement units (IMUs) placed on the lower trunk and thigh.
• Collected gait acceleration data from children with CP and healthy controls.
• Employed grey relational analysis and five gait parameters (Pearson coefficient, variance ratio, extreme points, harmonic ratio, symmetry).

Main Results:

• Significant differences in gait acceleration modes were observed between CP children and healthy subjects.
• The proposed method effectively identified and quantified gait abnormalities in CP children.
• Motor dysfunction severity in CP correlated with gait acceleration mode abnormalities.

Conclusions:

• An objective, acceleration-based gait assessment method for CP is feasible.
• This method provides a valuable tool for evaluating gait in children with CP.
• The findings support the use of IMU-based gait analysis in CP clinical practice and rehabilitation.