Outcome | Variables | Measurement method | Time points (months) |
---|---|---|---|
Primary | Habitual physical activity | Accelerometry (ActiGraph worn on the hip) | 0, 1.5, 6 |
 | Sedentary behaviour | Accelerometry (activPAL worn on thigh) | 0, 1.5, 6 |
Secondary | Knee OA-specific functional ability and quality of life | WOMAC | 0, 1.5, 6 |
KOOS | |||
KSS | |||
OKS | |||
 | Activity | UCLA activity index | 0, 1.5, 6 |
 | Pain | VAS | 0, 1.5, 6 |
 | Sleep quality | Sleep questionnaire | 0, 1.5, 6 |