Darcy Ummels

Counting steps in activities of daily living in people with a chronic disease | 37 2 Conclusion This study showed that the validity of 9 commercially available activity trackers is low measuring steps while individuals engage in activities of daily living among a diverse group of patients with various chronic diseases receiving physiotherapy. Frequent underestimation and a wide range of measurements were seen for step count during a protocol with activities of daily living compared to observed steps as gold standard. Acknowledgments We would like to thank all (consortium) partners: Hanze University of Applied Sciences, Hospital Nij Smellinghe, Fontys University of Applied Sciences School of Sport Studies, Maastricht University, Paramedisch Centrum Zuid, Fysiotherapie Schaesberg, Revalidatiecentrum Adelante, Ergotherapie Prakijk Zuid ‐ Limburg, Royal Dutch Society for Physical Therapy and Huis voor de zorg. This project was funded by Stichting Innovatie Alliantie (2014 ‐ 01 ‐ 54P) and Brightlands Innovation Program Limburg Meet. The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.