Flexion-extension movement of lumbar spine of the men and women's

The normal flexion-extension movement of lumbar spine was studied based on data obtained through the examination of 150 patients who had presented no complaints regarding lumbar spine. As a result, a quantitative description of a normal movement for lumbar lordosis was elaborated. The study addressed such issues as the impact of separate segments on the development of movement, with the identification of relevant quantitative parameters. In addition, sexual differences of the quantitative parameters describing the flexion-extension movement of lumbar spine were determined. The study analyzed tendencies in the curvature and movement transformation during the life period of 17-70 years of age.