1. LIKES Research Center, Jyväskylä, Finland
2. Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
3. Department of Biology of Physical Activity, University of Jyväskylä, Jyväskylä, Finland
4. Med Care Oy, Äänekoski, Finland
5. Päijät-Häme Social and Health Care Group, Lahti, Finland
6. Department of Health Sciences, University of Jyväskylä, Jyväskylä, Finland