{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,15]],"date-time":"2026-04-15T00:59:29Z","timestamp":1776214769259,"version":"3.50.1"},"reference-count":23,"publisher":"The Journal of Rheumatology","issue":"10","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Rheumatol"],"published-print":{"date-parts":[[2018,10]]},"abstract":"<jats:sec><jats:title>Objective.<\/jats:title><jats:p>Conventional measures of spinal mobility used in the assessment of patients with axial spondyloarthritis (axSpA), such as the Bath Ankylosing Spondylitis Metrology Index and its components, are subject to interobserver variability. The University of C\u00f3rdoba Ankylosing Spondylitis Metrology Index (UCOASMI) is a validated composite index based on a motion video-capture system, UCOTrack. Our objective was to assess its reproducibility in clinical practice settings.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods.<\/jats:title><jats:p>We carried out an observational study of repeated measures in 3 centers. Video-capture systems were installed and adapted to clinical rooms. Patients with axSpA and stable disease were selected by consecutive stratified sampling [disease duration, sex, and the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI)]. Intraobserver reliability of the UCOASMI and of conventional measures was tested 3\u20135 days apart. For interobserver reliability, 3 patients from each center were evaluated in the other centers, within 3\u20137 days. The intraclass correlation coefficients (ICC) were calculated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results.<\/jats:title><jats:p>Thirty patients were included (73% men, mean age 53 yrs, mean BASDAI 3.0). Interobserver and intraobserver ICC of the UCOASMI was 0.98. Conventional measurements showed lower but adequate reproducibility as well, except for interobserver reliability of lateral flexion (0.41), cervical rotation (0.61), and Sch\u00f6ber test (0.07), and intraobserver reliability of tragus-to-wall distance (0.30).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion.<\/jats:title><jats:p>Reproducibility of the UCOASMI seems very high, and apparently more reliable than conventional measures of mobility.<\/jats:p><\/jats:sec>","DOI":"10.3899\/jrheum.170941","type":"journal-article","created":{"date-parts":[[2018,6,15]],"date-time":"2018-06-15T07:25:23Z","timestamp":1529047523000},"page":"1383-1388","source":"Crossref","is-referenced-by-count":8,"title":["High Reproducibility of an Automated Measurement of Mobility for Patients with Axial Spondyloarthritis"],"prefix":"10.3899","volume":"45","author":[{"given":"Juan L.","family":"Garrido-Castro","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rafael","family":"Curbelo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ram\u00f3n","family":"Mazzucchelli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mar\u00eda E.","family":"Dom\u00ednguez-Gonz\u00e1lez","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cristina","family":"Gonzalez-Navas","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bryan J.","family":"Flores Robles","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pedro","family":"Zarco","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan","family":"Mulero","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luis","family":"Cea-Calvo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mar\u00eda J.","family":"Arteaga","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pilar","family":"Font-Ugalde","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Loreto","family":"Carmona","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eduardo","family":"Collantes-Estevez","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2262","published-online":{"date-parts":[[2018,6,15]]},"reference":[{"key":"2018112909390558000_45.10.1383.1","doi-asserted-by":"publisher","DOI":"10.1038\/nrrheum.2012.219"},{"key":"2018112909390558000_45.10.1383.2","doi-asserted-by":"publisher","DOI":"10.1111\/j.0105-2896.2009.00857.x"},{"key":"2018112909390558000_45.10.1383.3","doi-asserted-by":"publisher","DOI":"10.1111\/j.0105-2896.2005.00338.x"},{"key":"2018112909390558000_45.10.1383.4","doi-asserted-by":"publisher","DOI":"10.1093\/rheumatology\/ker348"},{"key":"2018112909390558000_45.10.1383.5","doi-asserted-by":"crossref","first-page":"707","DOI":"10.1002\/art.20933","article-title":"The national bone and joint decade: impact for rheumatic diseases","volume":"52","author":"Katz","year":"2005","journal-title":"Arthritis Rheum"},{"key":"2018112909390558000_45.10.1383.6","doi-asserted-by":"publisher","DOI":"10.1007\/s00296-008-0759-5"},{"key":"2018112909390558000_45.10.1383.7","doi-asserted-by":"publisher","DOI":"10.3899\/jrheum.140901"},{"key":"2018112909390558000_45.10.1383.8","first-page":"1694","article-title":"Defining spinal mobility in ankylosing spondylitis (AS). 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