An observational study in Knee Osteoarthritis and Physical Activity Behaviour, sponsored by Mälardalen University. Not yet recruiting at 1 site in Sweden. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-15.
Sponsored by Mälardalen University · Observational
This study aims to improve our understanding of how people with knee osteoarthritis think about, regulate, and adapt their physical activity while participating in Joint Academy's digital osteoarthritis programme for knee osteoarthritis. The study will investigate how understanding of the regulation of physical activity, psychological factors, and patterns of daily activity are related to participation in rehabilitation and changes in physical function over time. By gaining a better understanding of how people experience and manage physical activity in the context of knee osteoarthritis, we hope to improve the knee osteoarthritis programme and support rehabilitation that is better tailored to individual needs.
3,391 studies on the registry are indexed under Osteoarthritis, Knee; 628 are open to participants now.
This study's planned enrollment of 500 is above the median of 100 across 484 observational studies indexed under Osteoarthritis, Knee.
Browse Osteoarthritis, Knee studies →Mälardalen University is the lead sponsor of 11 studies on the registry; 2 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients with knee osteoarthritis enrolled in Joint Academy's rehabilitation programme in Sweden.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Another serious primary condition is judged to be the main cause of the participant's symptoms (e.g., cancer, inflammatory joint disease, neurological disease, or persistent disability following hip fracture).
Physical exercise is contraindicated. Another health condition currently causes more severe symptoms than the knee condition for which treatment is sought (e.g., chronic widespread pain or fibromyalgia).
Age below 18 years. Inability to understand or communicate in Swedish or English.
In addition, individuals will be excluded from the research project if they:
Have cognitive or intellectual impairments that prevent the provision of informed consent.
Have disabilities or medical conditions that substantially limit independent performance of daily activities.
Have speech, visual, or hearing impairments that cannot be adequately compensated for by assistive devices and therefore prevent participation in data collection or, where applicable, qualitative interviews.
Patient Specific Functional Scale
The Patient-Specific Functional Scale (PSFS) is a patient-reported outcome measure in which individuals identify activities that are important to them but are limited by their condition. Each activity is rated on a scale from 0 to 10, where 0 indicates inability to perform the activity and 10 indicates the ability to perform the activity at the pre-injury or pre-condition level. The PSFS is commonly used to monitor changes in function over time.
Time frame: From enrollment to the end of the treatment at 12 weeks
KOOS-12 Function subscale
The functional subscale of the 12-items Knee injury and Osteoarthritis Outcome Score (KOOS-12) assesses knee-related physical function. Higher scores indicate better status. The baseline score will be used as the primary functional outcome in cross sectional analysis of activity patterns and psychological factors.
Time frame: From enrollment to the end of the treatment at 12 weeks.
Plan to share: No — Individual participant data will not be made publicly available due to the sensitive nature of the health data and restrictions related to ethical approval, data protection requirements and data sharing agreements. Study material that do not contain individual-level participant data, such as the study protocol, statistical analysis plan and aggregated results may be made available where appropriate.
Start is estimated for Nov 2026; primary completion for Sep 2027, 10 months later.
Of 173 non-industry observational studies under Osteoarthritis, Knee, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 48. This study's planned 10 months is below that.
Counting every sponsor, half of 215 studies reached it within 25 months; a quarter within 13 and three quarters within 61.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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Mälardalen University