1. Rehasport Clinic, Gorecka 30, 60-201 Poznan, Poland
2. The Faculty of Mechanical Engineering, Institute of Applied Mechanics, Poznan University of Technology, 60-965 Poznan, Poland
3. RSQ Technologies Company, 27 Grudnia 3, 61-737 Poznan, Poland
4. Spine Disorders and Pediatric Orthopedics Department, Poznan University of Medical Sciences, 61-545 Poznan, Poland
5. Orthopaedics, Traumatology and Hand Surgery Department, Poznan University of Medical Sciences, 28 Czerwca 1956, No. 135/147, 61-545 Poznan, Poland