Our activity tracker study aims to develop machine learning models that can accurately detect specific types of physical activity (e.g. standing, walking, stair climbing, cycling), in people living with Rheumatoid Arthritis (RA). The aim is to try and use these new models to see how accurately popular activity trackers like the Fitbit, are able to measure physical activity in people living with Rheumatoid Arthritis.
This is needed because most machine learning models that are currently used in activity trackers like the Fitbit, are not developed using data collected from people living with Rheumatoid Arthritis. This is important as movement patterns may be very different in people living with Rheumatoid Arthritis due to the daily challenges faced, such as symptoms and problems with mobility.
We also hope to be able to use the Rheumatoid Arthritis-specific models we develop to learn about links between activity patterns and health in people with Rheumatoid Arthritis, to provide personalised support for physical activity in the MISSION-RA app.
Who are we looking for? We are currently recruiting up to 150 people living with Rheumatoid Arthritis to help us develop our MISSION-RA machine learning models. You need to be over 18, have a clinical diagnosis of Rheumatoid Arthritis, and be able to stand and walk - this includes people who need to use an assistive device (e.g. cane or walking frame).
What would taking part involve? We would ask you to visit the University of Birmingham, where you would be given 3 activity trackers for a week. Two activity trackers would be worn on your wrist, and one on your ankle. We would also ask you to wear a camera clipped to your clothing for 2 days. The camera will take pictures of what you are doing every 20-30 seconds. You will be given instructions on how to use the camera, and your privacy will be protected. During the week you are wearing the activity trackers, we will also ask you to record your symptoms using the MISSION-RA app.
Where? The University of Birmingham. Your visit will take about 2 hours, and travel expenses would be paid.
When? Between January 2024 and May 2025
The video below provides more information about what to expect if you are interested in taking part. The Participant Information Sheet is also available to download by clicking the link below. This provides further details of the study, including how your data will be protected.
Please note: the study has been updated since the video was developed, and we are now asking people to wear the activity tracker on their ankle, rather than their thigh. This is because we think walking will be a key behaviour to be able to accurately measure and monitor, for supporting physical activity behaviour change. We are also asking people to report their symptoms and mood in a smartphone app, rather than the activity diary shown in the video.
If you are interested in taking part, please contact the MISSION-RA team at mission-ra@trials.bham.ac.uk, or register your interest here using our contact form.
Participant Information Sheet - activity tracker study (Document, 483 Kb)
