[1] Wroclaw Med Univ, Fac Hlth Sci, Dept Physiotherapy, Ergon & Biomed Monitoring Lab, Tytusa Chalubinskiego 3, PL-50368 Wroclaw, Poland
[2] Wroclaw Med Univ, Fac Med, Dept Orthopaed Traumatol & Hand Surg, Wroclaw, Poland
[3] Univ Gothenburg, Inst Neurosci & Physiol, Sahlgrenska Acad, Unit Physiotherapy,Dept Hlth & Rehabil, Gothenburg, Sweden
[4] Univ Gothenburg, Sahlgrenska Acad, Dept Orthopaed, Gothenburg, Sweden
[5] Brandenburg Med Sch Theodor Fontane, Univ Hosp Brandenburg Havel, Ctr Orthopaed & Traumatol, Brandenburg a d H, Germany
[6] Brandenburg Med Sch Theodor Fontane, Fac Hlth Sci Brandenburg, Brandenburg a d H, Germany