Thumb-base osteoarthritis — how muscle mechanics, joint looseness, and pain are connected
Carpometacarpal Osteoarthritis: Understanding the Intersection of Muscle Mechanics, Joint Instability, and Pain
This project looks at how thumb muscles and joint instability relate to pain and hand function in people with thumb-base osteoarthritis and in healthy volunteers.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Florida NIH-funded |
| Lab location | 1 site (Gainesville, United States) |
| Project ID | NIH-11330308 on NIH RePORTER |
What this research studies
You would be invited to join whether you have mild or severe thumb osteoarthritis or no symptoms, so researchers can compare different patterns of pain and instability. The team will use ultrasound to image thumb muscle structure and measure muscle size and fiber length, then use computer musculoskeletal models to estimate how well those muscles can generate force. Participants will also take part in experiments that record muscle activity and pain responses while the thumb is used, to see how muscle use links to pain or joint looseness. Together this will help identify muscle changes that make symptoms better or worse and define healthy targets for future treatments.
Who could benefit from this research
Good fit: Ideal candidates are adults with thumb-base (carpometacarpal) osteoarthritis across the full range of severity, as well as healthy volunteers for comparison.
Not a fit: People without thumb osteoarthritis or those seeking an immediate treatment are unlikely to gain direct clinical benefit from participation.
Why it matters
Potential benefit: If successful, this work could point to new ways to reduce thumb pain and improve strength and stability by targeting muscle structure or activity.
How similar studies have performed: Previous imaging and biomechanical studies have examined thumb structure or muscle activity, but combining ultrasound, musculoskeletal simulation, and pain-response testing in CMC osteoarthritis is relatively novel.
Where this research is happening
Gainesville, United States
- University of Florida — Gainesville, United States (Active)
Researchers
- Principal investigator: Nichols, Jennifer a. — University of Florida
- Study coordinator: Nichols, Jennifer a.
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 below.