The study aims to assess the feasibility/acceptability of real-world activity monitoring by the Syde® wearable device in PSP-R. The Syde® collected data will be compared to on-site conventional clinical endpoints, including functional capacity and cognitive assessments, as well as core scales assessments.
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Patients with extreme cognitive disorders that limit their understanding of the data collection process (training of device use and 4-week recording periods every 4 months, device return at the end of the study), tests to be performed including eye movement recording (every 8 months), the implication of the study and consent.
Patients who do not tolerate to keep the sensors on their ankles.
Patients who have undergone a surgical procedure or who have experienced recent trauma (within fewer than 6 months) affecting the lower limbs.
A concomitant chronic or acute neurological, endocrine, infectious, allergic, or inflammatory pathology within the 3-week period immediately prior to inclusion.