1. Non-communicable diseases and Environment Programme , ISGlobal, Barcelona, NE4 5PL , Spain
2. Department of Medicine and Life Sciences, Universitat Pompeu Fabra , Barcelona, NE4 5PL , Spain
3. CIBER Epidemiología y Salud Pública , Barcelona, NE4 5PL , Spain
4. Epidemiology, Biostatistics and Prevention Institute, University of Zurich , Zurich, Switzerland
5. University College Dublin Insight Centre for Data Analytics, , Dublin, Ireland
6. Mobilise-D Patient and Public Advisory Group
7. University Medical Center Schleswig-Holstein Department of Neurology, , Kiel, Germany
8. Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) Department of Artificial Intelligence in Biomedical Engineering, , Erlangen, Germany
9. Sheffield Teaching Hospitals NHS Foundation Trust & University of Sheffield Department of Neuroscience and Sheffield NIHR Translational Neuroscience BRC, , Sheffield, UK
10. Robert-Bosch-Hospital Department of Clinical Gerontology, , Stuttgart, Germany
11. KU Leuven Department of Rehabilitation Sciences, , Leuven, Belgium
12. University Hospitals Leuven Department of Respiratory Diseases, , Leuven, Belgium
13. Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne , UK
14. CIBER Epidemiología y Salud Pública , Barcelona, NE4 5PL, Spain