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A Comparative Study of Gait Characteristics between Single Axis Foot and Energy Storing Foot for Sports in Trans-tibial Amputee  

Chang, Yun-Hee (Korea Orthopedic and Rehabilitation Engineering Center)
Bae, Tae-Soo (Korea Orthopedic and Rehabilitation Engineering Center)
Kim, Shin-Ki (Korea Orthopedic and Rehabilitation Engineering Center)
Mun, Mu-Seong (Korea Orthopedic and Rehabilitation Engineering Center)
Publication Information
Abstract
This study examined the differences in spatio-temporal parameters, joint angle, ground reaction force (GRF), and joint power according to the changes of gait speed for trans-tibial amputees to investigate the features of the energy-storing foot for sports. The subjects walked at normal speed and at fast speed, wearing a single-axis type foot (Korec) and an energy-storing foot for sports (Renegade) respectively. The results showed that Renegade yielded faster gait speed as well as more symmetric gait pattern, compared to Korec. However, as gait speed was increased, there was no significant difference in kinematics, ground reaction force, and joint power between two artificial foots. This was similar to the results from previous studies regarding the energy-storing foot, where the walking velocity and gait symmetry have been improved. Nevertheless, the result of this study differed from the previous ones which reported that joint angle, joint power, and GRF increased as the gait speed increased except spatio-temporal parameters.
Keywords
Trans-tibial Amputee; Energy-storing Foot for Sports; Gait Characteristics;
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