{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T09:25:12Z","timestamp":1787217912339,"version":"build-2736575974"},"reference-count":33,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T00:00:00Z","timestamp":1787184000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T00:00:00Z","timestamp":1787184000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee Surg &amp; Relat Res"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Proprioceptive deficits following anterior cruciate ligament reconstruction (ACLR) are commonly assessed using sagittal-plane, nonweight-bearing tasks that may not reflect the demands of functional activities. This study evaluated the test\u2013retest reliability and discriminative validity of a weight-bearing knee valgus discrimination task (Knee-VEDA) and compared proprioceptive acuity, muscle activity, dynamic balance, and patient-reported outcomes between individuals with ACLR and healthy controls.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Sixty-three participants (32 ACLR, 31 controls) performed the Knee-VEDA with concurrent surface electromyography (sEMG) of seven lower-limb muscles. Test\u2013retest reliability was assessed. Dynamic balance and patient-reported outcomes were evaluated using the Y-Balance Test, International Knee Documentation Committee (IKDC) form, and Knee injury and Osteoarthritis Outcome Score (KOOS).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The Knee-VEDA demonstrated acceptable-to-good test\u2013retest reliability (ACLR ICC\u2009=\u20090.84; controls ICC\u2009=\u20090.64) and acceptable discriminative validity (AUC\u2009=\u20090.835,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). The ACLR group exhibited significantly poorer proprioception in the operated limb compared with their intact limb and controls (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). sEMG analysis revealed not statistically significant between-group differences in lower-limb muscle activity. ACLR participants also demonstrated inferior Y-Balance performance compared with controls (\n                      <jats:sub>p<\/jats:sub>\n                      \u2009=\u20090.02). In the ACLR group, better Knee-VEDA scores correlated with better Y-Balance (\n                      <jats:sub>r<\/jats:sub>\n                      \u2009=\u20090.50,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), and better KOOS symptoms scores (\n                      <jats:sub>r<\/jats:sub>\n                      \u2009=\u20090.55,\n                      <jats:sub>p<\/jats:sub>\n                      \u2009=\u20090.001).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The Knee-VEDA may be a useful tool for assessing weight-bearing knee proprioception after ACLR, showing acceptable test\u2013retest reliability and discriminative validity. After ACL reconstruction, operated-limb proprioceptive acuity was found to be reduced during the valgus task. Further validation is needed before clinical application.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s43019-026-00341-5","type":"journal-article","created":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T08:41:59Z","timestamp":1787215319000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Knee valgus proprioception, muscle activity, patient-reported outcomes and dynamic balance control after anterior cruciate ligament reconstruction:\u00a0a cross-sectional case\u2013control study"],"prefix":"10.1186","volume":"38","author":[{"given":"Mengde","family":"Lyu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adrian","family":"Pranata","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joshua","family":"Farragher","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinglei","family":"Huang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huaibin","family":"Qian","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roger","family":"Adams","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weixin","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ji","family":"Sun","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qingrong","family":"Xu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jia","family":"Han","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evangelos","family":"Pappas","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,8,20]]},"reference":[{"key":"341_CR1","doi-asserted-by":"publisher","first-page":"130","DOI":"10.1177\/036354659702500126","volume":"25","author":"SM Lephart","year":"1997","unstructured":"Lephart SM, Pincivero DM, Giraido JL, Fu FH (1997) The role of proprioception in the management and rehabilitation of athletic injuries. 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All participants provided written informed consent prior to their inclusion in the study.","order":1,"name":"Ethics","label":"Ethics approval and consent to participate","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":2,"name":"Ethics","label":"Consent for publication","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"43"}}