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Feasibility of Resting Intervals During Exercise Programs for Individuals With Knee Osteoarthritis

Mechanical and Molecular Determinants of Cartilage Response to Exercise

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06857123
Acronym
CaRE
Enrollment
20
Registered
2025-03-04
Start date
2024-12-04
Completion date
2026-12-31
Last updated
2026-02-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Knee Osteoarthristis

Keywords

Knee, Osteoarthritis, exercise, feasibility

Brief summary

This pilot randomize trial tests the feasibility of administering two different exercise programs in people with knee osteoarthritis. One group receives the exercise program administered as usual, and the other group received the exercise program with resting intervals.

Detailed description

Participants will be randomly assigned to 1 of 2 treatment groups. Both groups do the same exercise program 3 times a week for 12 weeks on nonconsecutive days. The only difference is that one group will perform the exercises with small resting periods between exercises as normally done in clinical practice. The other group will have two long rests of 45 minutes during the exercise training session. Before and after the exercise programs, participants will undergo a series of assessments including gait analysis, MRI imaging of knees, tests of muscle strength and physical performance. Questionnaires will be completed. Blood and synovial fluid will be collected as part of this study.

Interventions

BEHAVIORALExercise with Rest

Participants in this arm exercise 3 times a week for 12 weeks. Exercise program consists of warm-up, strengthening exercises of the lower major extremity muscle groups, and aerobic training using a treadmill. These sessions include two 45 minute rest periods between exercises and take about two and a half hours.

BEHAVIORALExercise without Rest

Participants in this arm exercise 3 times a week for 12 weeks. Exercise program consists of warm-up, strengthening exercises of the lower major extremity muscle groups, and aerobic training using a treadmill. These sessions include minimal resting periods between exercises and take about one hour.

Sponsors

University of Pittsburgh
Lead SponsorOTHER
Carnegie Mellon University
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Investigator)

Eligibility

Sex/Gender
ALL
Age
45 Years to 79 Years
Healthy volunteers
No

Inclusion criteria

* Age between 45 and 79 yo. * Clinical diagnosis of primary, early to moderate stage knee osteoarthritis. * BMI range \< 35 kg/m2. * Sedentary lifestyle * Knee joint is the most painful joint in the body. * Ability to speak and understand English. * Willingness to comply with all study procedures and be available for the duration of the study.

Exclusion criteria

* Non-OA disease of the knee. * Advanced knee osteoarthritis * Knee injection in the past 3 months. * Major knee trauma/surgery in the past 5 years or previous knee surgery with hardware limiting cartilage assessment.. * Participate in regular exercise or physical activity . * Participation in an intervention study for knee OA. * Currently using a cane, walker or crutches to walk. * History of cardiovascular disease or hypertension not controlled by medication. * Two or more unexplained falls in the past year. * Inflammatory, autoimmune disorders, neurological, systemic, muscular, or connective tissue conditions that affect walking or ability to exercise. * Contraindication to MRI. * Medical condition or characteristic of the participant that could place the individual at increased risk or preclude s/he from complying with study procedures. * Pregnant female. * Acute or terminal illness.

Design outcomes

Primary

MeasureTime frameDescription
Feasibility of recruitmentThe time frame for this outcome is from the enrollment period up to randomization. This outcome measure is independent of treatment assignment.The number of eligible individuals who are randomized out of all eligible individuals.

Secondary

MeasureTime frameDescription
Safety of interventions3 months (window of 1 month)The number of adverse events related to study participation in each arm

Countries

United States

Contacts

CONTACTGaupp
awg26@pitt.edu412-383-0742
PRINCIPAL_INVESTIGATORSara Piva

University of Pittsburgh

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026