{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,25]],"date-time":"2026-05-25T11:04:42Z","timestamp":1779707082415,"version":"3.53.1"},"reference-count":21,"publisher":"Springer Science and Business Media LLC","license":[{"start":{"date-parts":[[2026,5,25]],"date-time":"2026-05-25T00:00:00Z","timestamp":1779667200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,5,25]],"date-time":"2026-05-25T00:00:00Z","timestamp":1779667200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100003062","name":"Erciyes University","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100003062","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Ir J Med Sci"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Functional mobility impairment is common in Multiple Sclerosis (MS) and affects daily functioning.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Aim<\/jats:title>\n                    <jats:p>The present study aimed to examine the validity and reliability of the L Test, a measure commonly used to assess functional mobility, across different levels of disease severity in individuals with MS.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A total of 35 individuals with clinically confirmed MS and Expanded Disability Status Scale (EDSS) scores ranging from 0\u20133.5 were recruited. Participants with EDSS scores between 0 and 1.5 were assigned to Group 1, while those with scores between 2\u20133.5 constituted Group 2. To determine inter-rater reliability, the L Test was administered on the same day by two independent physiotherapists.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Group 1 comprised 17 participants with a mean age of 40.82\u2009\u00b1\u200913.62\u00a0years, while Group 2 included 18 participants with a mean age of 48.44\u2009\u00b1\u20098.89\u00a0years. The test\u2013retest reliability of the L Test was excellent, with an intraclass correlation coefficient (ICC) of 0.99 (95% CI: 0.999\u20131.000). Receiver operating characteristic (ROC) analysis demonstrated that the L Test had a very high discriminative ability in differentiating between the two groups (AUC\u2009=\u20090.997). Correlation analyses revealed a strong, positive, and statistically significant relationship between the L Test and the TUG Test in both groups (Group 1: r\u2009=\u20090.712,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.001; Group 2: r\u2009=\u20090.856,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The findings indicate that the L Test is a valid and reliable tool for assessing functional mobility in individuals with MS presenting with varying functional levels.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s11845-026-04463-3","type":"journal-article","created":{"date-parts":[[2026,5,25]],"date-time":"2026-05-25T10:44:59Z","timestamp":1779705899000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Psychometric evaluation of the L Test for functional mobility across EDSS-based severity levels in multiple sclerosis"],"prefix":"10.1007","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4047-7965","authenticated-orcid":false,"given":"Hanife","family":"Abakay","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2541-7107","authenticated-orcid":false,"given":"Mehmet Fatih","family":"Yetkin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1014-8845","authenticated-orcid":false,"given":"\u00d6zge Baykan","family":"\u00c7opuro\u011flu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3048-9113","authenticated-orcid":false,"given":"Tu\u011fba","family":"Dere","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,5,25]]},"reference":[{"key":"4463_CR1","doi-asserted-by":"publisher","first-page":"27","DOI":"10.1111\/ene.13819","volume":"26","author":"R Dobson","year":"2019","unstructured":"Dobson R, Giovannoni G (2019) Multiple sclerosis - a review. 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