Biomechanics of double transtibial amputee sprinting using dedicated sprinting prostheses

The purpose of this study was to examine the overall kinetics and the kinetics at the joints of the lower limb while sprinting at maximum speed, and to compare the data of a double transtibial amputee and able‐bodied controls running at the same level of performance. One double transtibial amputee, using dedicated sprinting prostheses, and five able‐bodied sprinters participated in the study. The athletes performed submaximal and maximal sprints (60 m) on an indoor track. All of the participants ran three times at each speed (maximal and submaximal). The athletes’ kinematics were recorded using the Vicon 624 system with 12 cameras operating at 250 Hz. Four Kistler force plates (1250 Hz) were used to record ground reaction forces (GRF). External joint moments, joint work, and joint power were calculated from the GRF and the kinematic data. The analysis of total body kinetics revealed lower mechanical work during the stance phase for the double transtibial amputee using Cheetah prostheses than for the able‐...

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