Aims: The accuracy of non-radiographic measurement of the spinal shape is infl uenced by postural sway (PS).The aim of this study was to determine whether certain examination postures prevent PS without changing key spinalcharacteristics. Methods: We tested 1) natural standing position (posture A), 2) fi xation postures standing with the support of theupper limbs against a wall (posture B) and 3) standing with the support of the head and chest against a wall (postureC). There were examined 60 subjects; the examination of each posture was repeated fi ve times in each individual byDTP-3 microcomputer position system. The spinal shape changes resulting from tested postures were assessed usingt-test. The role of PS was assessed using standard deviations, and the signifi cance of diff erences between the individualpostures was determined using the F-test. Results: Compared to posture A, the fi xation posture B did not have any signifi cant infl uence on the degree of PS,but it signifi cantly infl uenced the shift of the spine from the ideal vertical and its slope, although this did not result inspine curve deformation. The fi xation posture C signifi cantly reduced the PS compared to posture A; however, therewere signifi cant changes in the spinal shape. This fi xation posture shifted signifi cantly the spine from the ideal verticaland slope characteristics.Conclusion: PS plays a role in the examination of spinal shape. Positions B and C did not meet the required criteria.Therefore, it is necessary to search for another examination position.

Department of Biomechanics and Engineering Cybernetics Faculty of Physical Culture Palacky University Olomouc

Citace poskytuje Crossref.org

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