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Purpose: Individuals with anterior cruciate ligament reconstruction (ACLR) are at heighted risk for developing post-traumatic osteoarthritis. Aberrant knee mechanics are modifiable factors implicated in the PTOA process. For example, ACLR patients offload the injured knee seen through smaller knee flexion moments (KFM) and peak flexion angles (KFA) during functional tasks compared to the contralateral knee. Further, lesser vertical ground reaction forces (vGRF) during gait are associated with increased serum markers of type II cartilage turnover. Elevated cartilage turnover is indicative of an imbalance between cartilage degradation relative to synthesis and thus offloading of the ACLR limb may negatively impact cartilage metabolism and hasten degeneration. Yet, gait assessments are seldom included in standard clinical practice after ACLR limiting the clinical utility to detect biomechanical risk factors for PTOA …