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Insole for Marathoners pilot study -for normal subjects-

Insole for Marathoners pilot study -for normal subjects-. Chao-Yi, Zheng Sai-Wei, Yang. outline. Instruments Method and procedure Results Conclusion. instruments. Pedar Center of pressure Pressure distribution Rs scan Static balance. Methods and procedures.

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Insole for Marathoners pilot study -for normal subjects-

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  1. Insole for Marathoners pilot study-for normal subjects- Chao-Yi, Zheng Sai-Wei, Yang

  2. outline • Instruments • Method and procedure • Results • Conclusion

  3. instruments

  4. Pedar • Center of pressure • Pressure distribution • Rs scan • Static balance

  5. Methods and procedures

  6. Absorption and dynamic stability • Instrument: Pedar system, treadmill • Condition: insole and shoe, random, each for three trials • Procedure: • Subject ran on the treadmill, the speed gradually increased to 3.35 m/s • When subject get with that speed, recorded data for 20 steps • Variables: • Standard deviation of Cop X • Peak pressure and maximal force at heel (m, l), midfoot (m, l), mp (1,2,345), toe (1, 2, 345)

  7. Static balance: • Instrument: Rs scan • Condition: (bare, shoe, insole) X (right, left) , each for five trials • Procedure: • To use tandem gait stand for 30s for each condition • Variable: • Cop X, Cop Y, Cop total travel way, elliptical area

  8. results Absorption

  9. Maximum force and peak pressure

  10. 1: insole Left foot 3: shoe Left foot 2: insole Right foot 4: shoe Right foot

  11. results Support and stability

  12. Insole_Subject 1

  13. Noinsole_Subject 1

  14. Insole_Subject 2

  15. Noinsole_Subject 2

  16. Dynamic balance

  17. Conclusion • Pressure distribution: • Maximum force M2 ：right foot wearing insole may lower than wearing shoe • Peak pressure M345 ：it may has different between two legs with insole；right insole and left shoe may have different • Dynamic stability：it may has different between these two conditions, the SD value in insole is bigger than insole but the bias is very small(0.03) • Static stability： it seems has no different between wearing insole and without insole

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