New exercise study aims to help knee arthritis patients conquer stairs safely
NCT ID NCT07424352
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a new exercise program using a flywheel device to improve stair-climbing in people with knee osteoarthritis. The training focuses on the muscle-lengthening phase of movement, which may build better muscle and coordination. Researchers will measure changes in movement smoothness and muscle health in 60 adults aged 40-70.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 60 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2025
- Expected to finish
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May 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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40 to 70 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria Osteoarthritis (OA) Group: * Aged 40-70 years * Radiographically confirmed knee OA (Kellgren-Lawrence \[KL\] Grade 2 or 3) * Able to walk independently (assistive devices permitted) Inclusion Criteria Healthy Control Group: * Aged 40-70 years * No radiographic evidence of knee OA (KL Grade 0 or 1) * No frequent knee pain * No history of: * Knee surgery (e.g., ACL reconstruction, meniscectomy, patellar realignment) * Significant knee injury (e.g., ligament tears, fractures, dislocations) * Diagnosed knee conditions (e.g., patellofemoral pain syndrome, bursitis) Exclusion Criteria: * Uncontrolled hypertension or other cardiovascular disease * A musculoskeletal condition preventing physical testing * Neurological muscle weakness (e.g., stroke, spinal cord injury) * BMI \>34.9 kg/m² * Recent hospitalization (past 3 months)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Colorado, Denver
RECRUITINGAurora, Colorado, 80045, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Talking through pain: could counseling unlock better exercise for knee arthritis?
- Can education boost exercise compliance for chronic pain sufferers?
- Could a simple X-Ray measurement outperform BMI in knee surgery safety?
- Can sound waves soothe aching knees?