“…This method complements and confirms the results of experimental studies; it can be used to analyse human body load without external loads that could be hazardous for subjects or impossible in an experimental study. Biomechanical modelling of the spine includes analysing spinal loading [9,10,11,12], stability [11,13,14], dynamics of injury [15,16] and surgery analysis [17,18]. The reliability of the assessment of musculoskeletal load conducted with computer modelling depends on the accuracy of the human model on the one hand, and on the applied muscle optimising procedure, on the other.…”