Digital Knee Osteoarthritis Mindset Intervention

Inclusion Criteria:

   - Over 45 years of age

   - Self-reported doctor's diagnosis of knee osteoarthritis OR meets the National
   Institute for - - Health and Care Excellence osteoarthritis clinical criteria
   (activity-related knee pain and no knee morning stiffness lasting ≥ 30 minutes)

   - Knee pain for at least 3 months

   - Ability to walk unaided

   - Can read and write in English

   - Consistent internet access

   - Willingness and ability to comply with the study requirements

Exclusion criteria:

   - Past total knee arthroplasty or scheduled surgical procedure on any back or lower limb
   with osteoarthritis within the next 12 months

   - Recent serious injury (within the past 2 months) on the knee(s) with osteoarthritis

   - Any condition making it unsafe to participate in physical activity

   - Intra-articular therapy within the past 6 months (e.g. injections such as
   corticosteroids and hyaluronic acid)

   - Participates in physical exercise for 30 minutes or more 5 days per week