Study of Cartilage Relaxometry and Physical Activity in Osteoarthritis

Efficacy of Strength and Aerobic Exercise on the Articular Cartilage of Patients With Mild and Moderate Knee Osteoarthritis Measured by T2 and T1 Rho MR Imaging - A Randomized Controlled Trial

Status

Withdrawn

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01797679

Enrollment

Registered

2013-02-22

Start date

2013-03-31

Completion date

2017-03-31

Last updated

2020-01-14

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

Conditions

Osteoarthritis

Keywords

Osteoarthritis,Articular Cartilage, Relaxometry, Morphometry, MRI, T2 mapping, T1 rho

Brief summary

This study is the radiological component of an earlier registered trial under the title: Efficacy of Exercise on Physical Function and Cartilage Health in Patients With Knee Osteoarthritis. The main purpose in this component of the study is to evaluate the efficacy of aerobic exercise and strength training on the T2 and T1 rho relaxation times of the articular cartilage. It has been proven that exercise can improve function and reduce the need for analgesics in patients with osteoarthritis. With this study, we wish to investigate if different kinds of exercise can cause measurable improvements in T2 and T1 rho relaxation times of the articular cartilage, and also if this improvements are transient or permanent.

Interventions

OTHERStrength Training

OTHERAerobic Exercise

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

DIAGNOSTIC

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Age

45 Years to 65 Years

Healthy volunteers

Yes

Inclusion criteria

* Women and men aged 45-65 years * Clinical knee OA according to the American College of Rheumatology Clinical Criteria 17 * Kellgren and Lawrence radiographic OA grade 2 and 3 (mild to moderate radiographic OA)

Exclusion criteria

* Severe knee OA according to the Kellgren and Lawrence classification (grade 4) * Other known major musculoskeletal impairments in the lower extremities or the back or prostheses in any joint of the lower extremities * Known coronary heart diseases or cancer * Body mass index \> 35 * Scheduled for surgery in any joint * Known mental or psychologic diseases * Known drug abuse * Persons who already perform sports related moderate physical activity more than two times a week * Contraindications for magnetic resonance imaging (specific point list at Diagnostic Imaging Division, Akershus University Hospital) * Not speaking Norwegian

Design outcomes

Primary

Measure	Time frame	Description
Qualitative Cartilage Morphology Assessment	One year	Indirect cartilage morphology will by assessed by X-ray Direct cartilage morphology will be assessed by MRI morphometry The biochemical composition of the cartilage will be assessed by relaxometry (T2 and T1 rho relaxation times)

Secondary

Measure	Time frame	Description
Semiquantitative Cartilage Assessment	One year	Using semiquantitative techniques, the clinical manifestations of osteoarthritis assessed by MRI such as: cartilage lesions and bone marrow lesions will be assessed and quantified by MRI.

Countries

Norway

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026