A Mobile Phone App to Stimulate Daily Physical Activity in Patients with Chronic Obstructive Pulmonary Disease: Development, Feasibility, and Pilot Studies

Sigrid NW Vorrink   ^{1 *} , MSc ;   Helianthe SM Kort   ^{1 *} , PhD ;   Thierry Troosters   ^{2 *} , PT,PhD ;   Jan-Willem J Lammers   ^{3 *} , MD,PhD

¹ Research Group Demand Driven Care, Utrecht University of Applied Sciences, Utrecht, Netherlands

² Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium

³ Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, Netherlands

*all authors contributed equally