Inclusion criteria | Exclusion criteria |
---|---|
Fulfil the National Institute for Health and Care Excellence (NICE) clinical criteria for osteoarthritis: • Age ≥ 50 years;a • Have activity related joint pain; and • Have morning stiffness ≤30 min. | Health conditions that prevent safe participation in physical activity interventions as listed in the American College of Sports Medicine Guidelines (e.g., cardiac or lung disease) |
Average knee pain intensity (overall and/or while walking) of ≥4 on 11-point numeric rating scale (NRS, where 0 = no pain; 10 = worst pain possible) in the past week | For those identified as at risk from the pre-exercise screening, general practitioner does not give medical clearance |
Moderate disability due to the knee over the past week (≥ 3 on the Global Disability Rating Scale) | Pain in other body areas that currently limits walking ability (e.g., back pain, foot pain, hip pain) |
Knee pain of at least 6 months duration | Neurological disorders affecting lower limb movement (e.g., multiple sclerosis or stroke) |
Current levels of moderate/vigorous physical activity (MVPA) below physical activity guideline recommendations (< 150 min/week of MVPA; assessed using the Active Australia Physical Activity Questionnaire) | Inflammatory arthritis (including rheumatoid arthritis) |
Current purposeful walking for exercise of ≤30 mins/day on ≤5 days/week | Fibromyalgia |
Able to give informed consent and to participate fully in the interventions and the assessment procedures | Planned knee replacement/surgery (next 12 months); and/or recent knee replacement on the non- or less-painful knee (< 6 months) |
Previously operated knee is the most painful knee | |
Intra-articular therapy use in the 12 weeks preceding enrolment | |
Any condition impacting decision-making/memory (e.g., Alzheimer’s, dementia) | |
Severe depression (> 17 on the 4-item PROMIS depression subscale) | |
Current moderate/vigorous physical activity levels above guideline recommendations (≥150 min/week; assessed using the Active Australia Physical Activity Questionnaire) | |
Current purposeful walking for exercise of ≥30 mins/day on ≥5 days/week. | |
Currently undergoing regular, active intervention for the knee (e.g., seeing a physiotherapist) | |
Unable to commit to study requirements (unable to attend study appointments or complete study outcomes) |