INTRODUCTION The Össur Pro-Flex is a 3-blade carbon fiber prosthetic foot designed to provide greater ankle range of motion compared to conventional energy storing and returning prosthetic feet1,2. To provide knowledge on Pro-Flex biomechanical performance, kinematic and kinetic gait parameters were evaluated and compared with the Össur Pro-Flex XC prosthetic foot. Outcomes from this study provide clinical professionals with important decision-making knowledge about two innovative energy storing and returning prosthetic feet. Abstract PDF Link: https://jps.library.utoronto.ca/index.php/cpoj/article/view/32003/24424 How to cite: Tomkin M, Gholizadeh H, Sinitski E, Lemaire E.D. TRANSTIBIAL AMPUTEE GAIT WITH THE PRO-FLEX FOOT DURING LEVEL, DECLINE, AND INCLINE WALKING. CANADIAN PROSTHETICS & ORTHOTICS JOURNAL, VOLUME 1, ISSUE 2, 2018; ABSTRACT, POSTER PRESENTATION AT THE AOPA’S 101ST NATIONAL ASSEMBLY, SEPT. 26-29, VANCOUVER, CANADA, 2018. DOI: https://doi.org/10.33137/cpoj.v1i2.32003 Abstracts were Peer-reviewed by the American Orthotic Prosthetic Association (AOPA) 101st National Assembly Scientific Committee. http://www.aopanet.org/