The working principle of the plantar pressure distribution gait analysis system can be divided into the following core steps:
- Data acquisition
Sensor array
The system captures the pressure changes in various areas of the sole in real time through a high-density pressure sensor array embedded in the insole, gait board or ground equipment. These sensors usually have high precision and fast response characteristics, and can cover key areas such as the heel, forefoot, and arch.
Dynamic monitoring
When the subject stands or walks, the sensor records the pressure distribution data of the sole and the contact surface at a millisecond frequency to form a continuous dynamic pressure change map.
- Data transmission and processing
Signal conversion and transmission
The analog signal collected by the sensor is converted into a digital signal through a data acquisition device and transmitted to the analysis system. Some systems support wireless transmission to reduce motion interference.
Data preprocessing
The system filters, denoises and standardizes the raw data to ensure the accuracy of subsequent analysis.
- Analysis and visualization
Pressure distribution modeling
The algorithm is used to generate a 3D plantar pressure distribution model, dynamically displaying parameters such as pressure peak, center of gravity trajectory and symmetry.
Gait feature extraction
The analysis software calculates biomechanical indicators such as cadence, step length, foot rotation angle, arch morphology, etc., and compares them with normal reference values to identify abnormal patterns (such as flat feet, high arches, etc.).
Report generation
Output includes a comprehensive report containing pressure thermograms, time series curves and personalized suggestions to assist clinical diagnosis or rehabilitation program formulation.
IV. Application feedback
The system provides a quantitative basis for rehabilitation training, orthotic device design and sports injury prevention through real-time or offline analysis results.
