Physical Activity Assessment Using an Activity Tracker in Patients with Rheumatoid Arthritis and Axial Spondyloarthritis: Prospective Observational Study

Charlotte Jacquemin   ^{1, 2} , MD ;   Hervé Servy   ³ , MSc ;   Anna Molto   ^{4, 5} , MD ;   Jérémie Sellam   ^{6, 7} , PhD ;   Violaine Foltz   ^{1, 2} , MD ;   Frédérique Gandjbakhch   ^{1, 2} , MD ;   Christophe Hudry   ⁴ , MD ;   Stéphane Mitrovic   ^{1, 2} , MD ;   Bruno Fautrel   ^{1, 2} , PhD ;   Laure Gossec   ^{1, 2} , PhD

¹ Rheumatology Department, Pitié Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France

² GRC-UPMC 08 (EEMOIS), UPMC Univ Paris 06, Sorbonne Université, Paris, France

³ Sanoïa, E-Health Services, Gardanne, France

⁴ Rheumatology B Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France

⁵ INSERM (U1153), Clinical Epidemiology and Biostatistics, Paris-Descartes University, Sorbonne Paris-Cité, Paris, France

⁶ Rheumatology Department, St-Antoine Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France

⁷ DHU i2B, INSERM UMRS_938, UPMC Univ Paris 06, Sorbonne Université, Paris, France