How walking patterns after knee injury affect knee cartilage and arthritis risk
Official title: Discovering the Mechanisms Linking Gait to Osteoarthritis Onset and Progression
Funded at Univ of North Carolina Chapel Hill · NIH-11261749 · Data updated 2026-11-12
This project tests whether certain walking patterns after knee injury harm knee cartilage in young people at risk for knee osteoarthritis.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Univ of North Carolina Chapel Hill NIH-funded |
| Lab location | 1 site (Chapel Hill, United States) |
| Project start | January 20, 2025 |
| Project end | December 31, 2029 |
| Funding year | 2026 |
| Award (this year) | $555,421 |
| NIH project number | 5R01AR083952-02 |
| Project ID | NIH-11261749 on NIH RePORTER |
Who could benefit from this research
✓Could help
Ideal candidates are people, often younger adults, who recently had an ACL or other knee injury or repair and are considered at high risk for knee osteoarthritis.
✕Less likely to help
People without prior knee injury or those who already have advanced knee osteoarthritis are unlikely to get direct benefit from this project.
What this research studies
If you join, researchers will measure how you walk and record the forces through your injured knee during everyday walking. They will use imaging and lab tests to see how those forces change cartilage strain and the biochemical makeup of your joint tissue and blood. The team will combine human measurements with lab experiments, models, and tissue studies to trace the chain from gait to cartilage changes. Results are intended to guide more precise walking-based rehab to prevent knee osteoarthritis after injury.
Why it matters
Potential benefit: If successful, this work could lead to personalized gait rehabilitation that reduces the chance of developing knee osteoarthritis after injury.
How similar studies have gone: Previous studies link gait changes to osteoarthritis risk and show gait retraining can improve symptoms, but the specific biological pathway from walking forces to cartilage damage is largely unproven.
Where this research is happening
-
Univ of North Carolina Chapel Hill
Chapel Hill, United States Active
Researchers
- Principal investigator: Pietrosimone, Brian — Univ of North Carolina Chapel Hill
- Study coordinator: Pietrosimone, Brian
Related research
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About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page.