en طب فیزیکی و توانبخشی Physical Medicine and Rehabilitation پژوهشي Original Research Articles <div style="text-align: justify;"><strong>Objectives</strong>: The present study evaluated the inter-rater and intra-rater validity and reliability of posturography by Kinovea software to measure the thoracic kyphosis and lumbar lordosis.<br> <strong>Methods</strong>: Eighteen subjects (10 females & 8 males) referring for radiographic imaging were included in this cross-sectional study. For evaluating the validity, the thoracic kyphosis and lumbar lordosis were measured according to the Cobb method and Kinovea in standing position. The inter-rater and intra-rater reliability of Kinovea were tested by 3 evaluators and one expert evaluator, respectively.<br> <strong>Results</strong>: Pearson correlation coefficient data suggested that the validity of measuring the thoracic kyphosis depends on the evaluator&rsquo;s expertise. Besides, the correlation was not significant in measuring the lumbar lordosis angle (P>0.05). The inter-rater and intra-rater repeatability revealed that the correlation was significant in all angles by the intraclass correlation coefficient (P<0.001).<br> <strong>Discussion</strong>: Posturography by Kinovea, as a noninvasive method presents an excellent inter-rater and intra-rater repeatability for measuring thoracic kyphosis and lumbar lordosis. This reliable method is simple, efficient, and inexpensive.</div> Validity, Reliability, Posturography, Kinovea software, Thoracic kyphosis, Lumbar lordosis 129 136 http://irj.uswr.ac.ir/browse.php?a_code=A-10-670-1&slc_lang=en&sid=1 Ali Sharifnezhad a_sharifnezhad@dr.com 0000-0000-0000-0000 No Department of Sport Biomechanics and Technology, Sport Science Research Institute, Tehran, Iran. Gholam Reza Raissi raissi.gh@iums.ac.ir 0000-0000-0000-0000 No Neuromusculoskeletal Research Center, Department of Physical Medicine and Rehabilitation, School of Medicine, Firoozgar Hospital, Tehran, Iran. Bijan Forogh bijanfr@gmail.com 0000-0000-0000-0000 No Neuromusculoskeletal Research Center, Department of Physical Medicine and Rehabilitation, School of Medicine, Firoozgar Hospital, Tehran, Iran. Hosnieh Soleymanzadeh soleymanzadeh.hosna@gmail.com 0000-0000-0000-0000 No Neuromusculoskeletal Research Center, Department of Physical Medicine and Rehabilitation, School of Medicine, Firoozgar Hospital, Tehran, Iran. Shadan Mohammadpour shadan.mhp@gmail.com 0000-0000-0000-0000 No Department of Health and Sports Medicine, Faculty of Physical Education and Sports Sciences, University of Tehran, Tehran, Iran. Mina Daliran m.d3347@yahoo.com 0000-0000-0000-0000 No Department of Physical Education and Sport Sciences, Faculty of Humanities, North Tehran Branch, Islamic Azad University, Tehran, Iran. Masumeh Bagherzadeh Cham masumehbagherzadeh@gmail.com 0000-0000-0000-0000 Yes Neuromusculoskeletal Research Center, Department of Physical Medicine and Rehabilitation, School of Medicine, Firoozgar Hospital, Tehran, Iran.