The primary outcome measure used was the KOOS4, a "mean score for the KOOS subscale scores for Pain, Symptoms, ADL and QOL." One of the secondary outcome measures was a 20 min walk test, which is a snapshot of a patient's activity level but may not reflect day to day activity. What isn't included is a functional outcome measure of daily physical activity, pre and post interventions. There are a number of activity monitors for recreational use that can have great clinical applications, including the simple accelerometer.
What do you think about the primary and secondary outcome measures used? And what are your thoughts on activity monitoring as an outcome measure for patients with knee OA (both in this study and in practice)?
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