Quantifying the Movement Dynamics of Adults Living With Total Knee Arthroplasty and Knee Osteoarthritis

What this Trial Is About

This research explores differences in walking and movement mechanics, exercise response, and physical activity among adults with knee osteoarthritis (OA), those who have had total knee replacement surgery, and healthy individuals. The study aims to better understand why people with OA or joint replacements tend to be less physically active despite pain relief from surgery. It focuses on identifying factors like unhealthy movement patterns and reduced fitness that may affect physical activity levels and quality of life. Participants include adults aged 40 to 85 with symptomatic knee OA, total knee replacement, or healthy controls. This is an observational cross-sectional study where participants undergo biomechanical movement testing without receiving any intervention. The study compares movement dynamics across groups to inform future treatments and rehabilitation strategies. During testing visits lasting about 2 hours, researchers assess peak knee adduction moments and other biomechanical measures. Participants also provide information on their physical activity and exercise responses. The study monitors walking ability and movement patterns to understand factors influencing physical function and activity. The overall goal is to improve clinical outcomes and quality of life for people with knee OA and those after joint replacement surgery.

Movement Dynamics of Knee Osteoarthritis and Total Knee Replacement