Idiopathic scoliosis (IS), which is substantially a three-dimensional deformation of a spine, causes not only lateral curvature and axial rotation of vertebral column, but also lordotisation of vertebrae in structural curve extension. In an effect physiological thoracic kyphosis diminishes or even disappears. Method of asymmetric trunk mobilisation in strictly symmetric positions according to Dobosiewicz not only deteriorates progression of IS or even reduces lateral curvature, but also significantly rebuilds physiological thoracic kyphosis in cases of IS accompanied by straight back.