Quantifying the Effectiveness of Shear Cushioning by Mobile Platform in Different Gait Situations.

• Main Authors: Hsieh, Chen Fang, 謝振芳
• Other Authors: Shiang, Tzyy Yuang
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/15631761448343884916

碩士 === 國立臺灣師範大學 === 運動科學研究所 === 101 === Purpose: The purpose of this study was to explore the different conditions on the stiffness of mobile platform to determine the ideal stiffness which can postpone the occurrence of impact and reduce the horizontal forces. Methods: Twelve healthy male participants (age: 23.2±1.3 years, height: 173.3±2.5 cm, weight: 67.1±7.2 kg) were volunteered for this study. In the first stage, each participant was asked to perform walking (1.5 ± 0.2 ms-1), jogging (2.5 ± 0.2 ms-1) and running (3.5 ± 0.2 ms-1) on five different mobile platform conditions in randomized sequence. Lower extremity kinematics and kinetics were calculated in this study. Two-way mixed design ANOVA was used to do the statistical analysis, the significant level was set α=.05. In the second stage, the appropriate stiffness conditions were placed on the sole to observe the shear cushioning effect in real situation. Results: Appropriate stiffness of mobile platform could provide better horizontal cushion and reduce lower extremity joint loading, but not to affect the lower limbs joint angle. Conclusions: To apply our findings on real situation, we can provide appropriate stiffness in different gait situations to raise the effect of shear cushioning.