1. Department of Physiotherapy, University School of Physical Education in Poznań, Królowej Jadwigi 27/39, 61-871 Poznań, Poland
2. Rheumatological Centre in Śrem, Mickiewicza 95, 63-100 Śrem, Poland
3. Department of Locomotor System Rehabilitation, University School of Physical Education in Poznań, Królowej Jadwigi 27/39, 61-871 Poznań, Poland