Application of Plantar Pressure Distribution System in Injury Prevention of Professional Athletes

The application of the plantar pressure distribution system in injury prevention of professional athletes is mainly reflected in the following aspects:

I. Core Detection Functions

Abnormal Load Identification
By detecting forefoot/rearfoot pressure peak values (normal range: forefoot 35–45%, rearfoot 55–65%), early identification of risks such as plantar fasciitis and stress fractures.

Gait Cycle Analysis
Quantifying ground contact time (normal value 200–300 ms) and push-off efficiency (ideal value >60%) to optimize running economy.

II. Clinical Prevention Programs

Dynamic Correction Guidance
Customized orthotic insoles combined with 3D scanning technology to reduce the standard deviation of pressure distribution to within 15% (original value often reaches 30–40%).

Muscle Fatigue Monitoring
By synchronously analyzing changes in plantar pressure and sEMG signals, providing early warning of gastrocnemius fatigue (MDF decrease >5 Hz requires intervention).

III. Technical Implementation Standards

Testing Protocol
Data collection should include static standing (30 s) + dynamic walking (3 round trips) + sport-specific movements (such as sudden stop and change of direction).

Data Standards
It is recommended to use COP trajectory length (normal value <30 mm) and pressure center deviation (<10 mm) as core evaluation indicators.

Note: The latest research recommends combining inertial sensors for three-dimensional motion analysis, which can improve injury prediction accuracy to 92%.