Predicting The Right Advice at The Right Time in Patients With Hip and Knee OsteoArthritis: the e-cOAch Cross-over.

Summary

This study aims to learn how symptoms and daily functioning change over time in people with hip or knee osteoarthritis (OA). The goal is to use this information to build computer models that can predict these changes. In the future, these models may help give people with OA the right self-care advice at the right time through a web application called ArtroseCoach. People with OA will take part in this study for one year. Every two weeks, they will fill in online questionnaires covering various aspects of their health and daily functioning, such as pain, daily activities, and participation in life. During the year, participants will be randomly assigned to one of several self-care programs in the ArtroseCoach web app. These programs focus on physical activity, weight management, or sleep. Each program lasts 12 weeks. At four points during the year (weeks 3, 15, 27, and 39), participants will receive one of these programs or no program at all. No one will receive the same program twice. The ArtroseCoach web app provides education about OA, lifestyle advice, and tips to support behavior change. The study will help researchers understand which factors are linked to changes in pain and physical functioning over time. This knowledge will be used to improve the ArtroseCoach and other future tools that support people with OA in managing their condition on their own.

Eligibility

Inclusion Criteria:

1. Have a hip or knee joint that, self-administered through a questionnaire, meets the National

   Institute for Health and Care Excellence clinical criteria for osteoarthritis:
   1. Aged 45 years or over and;
   2. Activity-related pain at the joint and;
   3. Joint morning stiffness that lasts no longer than 30 minutes or no morning stiffness at the joint;
2. History of pain at the joint for at least 3 months;
3. Have access to a smartphone with internet connection and an email address;
4. Able to give informed consent and willing to commit to all study evaluation and assessment procedures
5. Able to read and understand texts in Dutch at B1 level.

Exclusion Criteria:

1. Self-reported systemic arthritis (e.g., rheumatoid arthritis, gout) avoid confounding due to overlapping symptoms;
2. Scheduled for lower limb joint surgery within the next year or underwent lower limb joint surgery (total hip, total knee) the last year as surgical interventions could affect outcomes and confound the assessment of treatment effects.

Conditions2

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