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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- Chao-Yi, Zheng Sai-Wei, Yang
outline • Instruments • Method and procedure • Results • Conclusion
Pedar • Center of pressure • Pressure distribution • Rs scan • Static balance
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)
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
results Absorption
1: insole Left foot 3: shoe Left foot 2: insole Right foot 4: shoe Right foot
results Support and stability
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