{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T10:29:44Z","timestamp":1790850584448,"version":"4.1.0"},"reference-count":53,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2022,1,17]],"date-time":"2022-01-17T00:00:00Z","timestamp":1642377600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100006094","name":"University of Delaware","doi-asserted-by":"publisher","award":["Department of Physical Therapy Endowment Scholarsh"],"award-info":[{"award-number":["Department of Physical Therapy Endowment Scholarsh"]}],"id":[{"id":"10.13039\/100006094","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100006094","name":"University of Delaware","doi-asserted-by":"publisher","award":["Graduate College Summer Graduate Funding"],"award-info":[{"award-number":["Graduate College Summer Graduate Funding"]}],"id":[{"id":"10.13039\/100006094","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100009713","name":"Foundation for Physical Therapy","doi-asserted-by":"publisher","award":["Florence P. 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The purpose of this study was to explore the relationships between tendon structure and clinical impairments in patellar tendinopathy. In this retrospective, secondary analysis of individuals with patellar tendinopathy (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200941), tendon structure (thickness, cross\u2010sectional area [CSA], shear modulus, and viscosity), symptom severity, lower extremity function (counter\u2010movement jump [CMJ] height), and quadriceps muscle performance (knee extension force and central activation ratio [CAR]) were recorded for the symptomatic limb. Relationships among structure, symptom severity, lower extremity function, and quadriceps muscle performance were examined using sequential regression models. Adjusting for age, sex, body mass index, and pain levels, there were significant positive relationships for thickness (\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.001,\n                    <jats:italic>\u03b2<\/jats:italic>\n                    \u2009=\u20090.718) and viscosity (\n                    <jats:italic>p<\/jats:italic>\n                    \u2009=\u20090.006,\n                    <jats:italic>\u03b2<\/jats:italic>\n                    \u2009=\u20090.496) with CMJ height. There were significant negative relationships between CSA with both CMJ height (\n                    <jats:italic>p<\/jats:italic>\n                    \u2009=\u20090.001,\n                    <jats:italic>\u03b2<\/jats:italic>\n                    \u2009=\u2009\u22120.538) and CAR (\n                    <jats:italic>p<\/jats:italic>\n                    \u2009=\u20090.04,\n                    <jats:italic>\u03b2<\/jats:italic>\n                    \u2009=\u2009\u22120.517). This is the first study to demonstrate relationships between tendon structure and lower extremity function or quadriceps muscle performance in patients with patellar tendinopathy. Clinical significance: Since structural changes persist after symptom resolution, addressing these changes may assist in restoring lower extremity function and quadriceps muscle performance.\n                  <\/jats:p>","DOI":"10.1002\/jor.25262","type":"journal-article","created":{"date-parts":[[2022,1,7]],"date-time":"2022-01-07T18:24:25Z","timestamp":1641579865000},"page":"2320-2329","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Relationships between tendon structure and clinical impairments in patients with patellar tendinopathy"],"prefix":"10.1002","volume":"40","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6764-057X","authenticated-orcid":false,"given":"Andrew L.","family":"Sprague","sequence":"first","affiliation":[{"name":"Department of Physical Therapy University of Delaware Newark Delaware USA"},{"name":"Department of Biomechanics and Movement Science University of Delaware Newark Delaware 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T.","family":"Pohlig","sequence":"additional","affiliation":[{"name":"Biostatistic Core Facility, College of Health Sciences University of Delaware Newark Delaware USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel C.","family":"Cortes","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering Penn State University State College Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7566-407X","authenticated-orcid":false,"given":"Karin Gr\u00e4vare","family":"Silbernagel","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy University of Delaware Newark Delaware USA"},{"name":"Department of Biomechanics and Movement Science University of Delaware Newark Delaware USA"},{"name":"Department of Biomedical Engineering University of Delaware Newark Delaware 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