Accelerometer-based measures of free-living gait are capable of capturing stride-to-stride variability which may be clinically relevant to understanding mobility decline in patients awaiting arthroplasty.

Patients with end-stage knee OA with lower BMI and achieving a minimum recommended level of daily activity engage in more vigorous daily physical activities pre-surgery.

Wearable IMUs can be used remotely to collect free-living gait characteristics of patients awaiting knee arthroplasty surgery that may be complementary to in-clinic video-based gait outcomes.

Incorporating objective physical activity measurement into pre-operative assessment of knee arthroplasty provides unique insight into patient variability that may be relevant for surgical management and decision-making