The Effect of Prosthetic Foot Type on Spatio- Temporal Parameters of Unilateral Below-Knee Amputees: A Case Study

The fit of the prosthetic limb of the amputee is a key factor for rehabilitation, as well as the type of prosthetic foot, which is one of the factors affecting the gait parameter. The study aims to measure the spatiotemporal parameters of below-knee amputation subjects and how it affected when the subjects fit to different prosthetic feet, also its effect on the rehabilitation process. Six male subjects with unilateral below-knee amputation were chosen to fit with four types of prosthetic feet (1S66 SACH foot Ottobock inc., 1C30 Trias carbon Ottobock inc., Dynastep Proteor group and Dynacity Proteor group), asked them to walk with their usual speed on the straight pathway perpendicularly with the camera, The Spatio-temporal parameters for both amputated leg and the sound leg measured manually by using the Kinovea software (Kinovea-0.8.15 software) from the videos recorded. The results show there are no significant differences in the spatiotemporal parameters for p=0.05 between the four types of prosthetic feet on the sound and amputee leg and the comparison between the amputee and sound leg show a significant difference for the single support time when the patients fit to Trias 1C30 and Dynastep p<; 0.05. This study concludes that there is a little effect of the prosthetics foot type on the spatiotemporal parameters for the objects activity level k1-k3, as well as well-trained objects had less affected.