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Does it matter which health professional gives advice to exercise for knee osteoarthritis (OA)? An online randomised controlled trial.

Does it matter which health professional gives advice to exercise for knee osteoarthritis (OA)? An online randomised controlled trial evaluating effects on beliefs about exercise and physical activity.

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12625000551493
Enrollment
258
Registered
2025-05-30
Start date
2025-11-02
Completion date
2025-11-09
Last updated
2026-02-16

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

Conditions

None listed

Brief summary

Unfortunately, many people will experience knee osteoarthritis at some point in their life. This can be diagnosed by a health professional. People often have beliefs about treatments for, and the prognosis of, their knee osteoarthritis. Currently, we do not know whether the advice someone receives makes any difference to their beliefs about osteoarthritis treatment or prognosis. This study is interested in learning more about this, and whether different ways of providing advice about knee osteoarthritis impacts people’s beliefs about the condition.

Interventions

The entire trial will be administered in one single online survey. Eligible participants will be asked to imagine a hypothetical scenario where they have developed chronic knee pain and made an appointment with a healthcare professional to find out what is wrong and how to treat it. Participants will then be automatically randomised by Qualtrics to one of three groups, all of whom will be asked to watch a pre-recorded ~2 minute video where they receive an: i) Exercise recommendation from a phy

The entire trial will be administered in one single online survey. Eligible participants will be asked to imagine a hypothetical scenario where they have developed chronic knee pain and made an appointment with a healthcare professional to find out what is wrong and how to treat it. Participants will then be automatically randomised by Qualtrics to one of three groups, all of whom will be asked to watch a pre-recorded ~2 minute video where they receive an: i) Exercise recommendation from a physiotherapist. ii) Exercise recommendation from a GP. iii) Exercise recommendation from an orthopaedic surgeon. The content of all three videos will be identical and delivered by the same person, but participants will be told that they are a different type of healthcare professional. In all scenarios, the healthcare professional will provide an evidence-based explanation of what osteoarthritis is, its prognosis, and how it can be managed. The healthcare professional will then recommend commencing an exercise program first before exploring other treatment options. They will describe the benefits of exercise and its safety for people with osteoarthritis. Participants will be required to confirm (via checkbox) that they had watched the whole video before completing outcome measures. Participants will complete outcome measures immediately after watching their allocated video.

Sponsors

The University of Melbourne
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Primary purpose
Treatment

Eligibility

Sex/Gender
All
Age
45 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Participants will be eligible for the study if they meet the following inclusion criteria: i) Adults aged 45 years or over; ii) Currently living in Australia; iii) Either have, and have not, experienced activity-related knee joint pain in the last 3 months; iv) Are skeptical about the benefits of exercise for knee OA; and v) Have never consulted a healthcare professional for chronic knee pain. Note: We will recruit a sample of 50% who have knee pain, and 50% who do not have knee pain.

Exclusion criteria

Inability to understand or read English

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 19, 2026