Computational analysis of gait patterns in transfemoral amputees: polycentric and weight-activated knee joints
by Sushree Sangita Nayak; Aswini Kumar Mohapatra; Srikanta Maharana; Biswaranjan Mishra; Bijay Kishor Shishir Sekhar Pattanaik; Bijay Kumar Paikaray
International Journal of Computational Biology and Drug Design (IJCBDD), Vol. 16, No. 2, 2024

Abstract: In this article, we fitted polycentric or weight-activated knee joints to ten young, active amputees with transfemoral amputations. We compared the gait patterns of the amputees with those of 10 individuals using a polycentric or weight-activated knee. We compared the performance of participants with each knee type using a paired t-test. The results showed that a polycentric knee performed better than a weight-activated knee. The polycentric knee creates a balance between stability and mobility. The participants with a polycentric knee had a walking speed of 80.74 metres per minute, compared to 68.50 metres per minute with a weight-activated knee (P < 0.05). The symmetry of walking with the polycentric gait was greater than that of the participants with the weight-activated knee, based on the values of gait parameters in time-space. This research will help determine how the asymmetric gait of transfemoral amputees affects their prosthetic knee joints and open the door to better prosthetic components.

Online publication date: Wed, 16-Oct-2024

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