Association of Changes in Activity Patterns With Brain Atrophy and Disability Progression in People With MS

Dr. Alex Menze and Dr. Kathryn C. Fitzgerald discuss using accelerometry to detect subtle, longitudinal changes in disability in people with multiple sclerosis and how these changes relate to brain atrophy and disability progression.  Show citation:  Fitzgerald KC, Sanjayan M, Dewey BE, et al. Association of Changes in Activity Patterns With Brain Atrophy and Disability Progression in People With Multiple Sclerosis. Neurology. 2026;106(7):e214678. doi:10.1212/WNL.0000000000214678  Show transcript:  Dr. Alexander Menze: Hi, this is Alexander Menze. I just finished interviewing Kate Fitzgerald for the Neurology Podcast. For today's Neurology Minute, Kate, I'm hoping you can tell us the main points of your paper. Dr. Kathryn C. Fitzgerald:  So we followed 238 people with MS who are 40 or older for over three years and they wore risk-worn accelerometers roughly every three months and had regular clinical assessments and brain MRI. And what we found was that changes in activity patterns over time at the individual level were associated with subsequent changes in disability worsening and brain volume loss, particularly in the deep gray matter and thalamus. Dr. Alexander Menze: Thank you very much. Be sure to download this week's podcast to hear our full interview.