The study analyzed the effect of different sports shoe insole structures on decreasing ground reaction force for individuals with flat feet. Researchers analyzed foot patterns to classify participants as normal or flat footed. Both groups then ran on a force platform wearing three different shoe types (shoe 1, shoe 2, shoe 3) and barefoot. Ground reaction force data was collected and analyzed to determine which shoe structure provided the greatest reduction in force for those with flat feet.

2. Method Method I : Analysis of foot pattern and specifi c selection Method II: Running on Force Platform Method III : Analysis of data A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot Pattern

3. Method I : Analysis of foot pattern and specific s election Group persons into normal foot and flat foot by using Foot Scan program Specifically select 5 persons of normal foot 5 persons of flat foot A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot Pattern

4. Method II : Running on Force Platform 4.5 meters Track Force Platform Video Camera Time Sensor start finish A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot Pattern

5. Weigh subjects on force platform Run Testing on Track Run on Force Platform with the velocity 3.5 m/s ± 5 % , 3 times A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot Pattern Method II : Running on Force Platform Shoes 2 Shoes 3 Bare foot Shoes 1

6. Shoes 2 Shoes 3 Shoes 1 A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot Pattern Method II : Running on Force Platform

7. A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot Pattern Method II : Running on Force Platform

8. Method III : Analysis of data Choose the suitable data Analyze data A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot Pattern

9. Results A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot Pattern

10. A Study of the Sports Shoes' insole Structures that Affect Decreasing Ground Reaction Force on Foot of Flat Foot Pattern Results