{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T14:05:08Z","timestamp":1790258708731,"version":"4.1.0"},"reference-count":44,"publisher":"Georg Thieme Verlag KG","issue":"13","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J Sports Med"],"published-print":{"date-parts":[[2023,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This study aims to investigate morphological and mechanical properties and\n                    echogenicity of the patellar tendon (PT) after acute fatigue-induced alterations\n                    in sprint track cyclists. Fourteen elite track cyclists participated in this\n                    study. The exercise protocol consisted of three maximal start accelerations\n                    (over a distance of 62.5\u2009m), one maximal start acceleration (at both\n                    125\u2009m and 250\u2009m), and sprints from the standing start.\n                    Immediately after testing all measurements, PT stiffness and thickness were set\n                    at 5\u201310\u201315\u201320\u2009mm distal from the apex of the\n                    patella and 5\u201310\u2009mm proximal to the tibial tuberosity. CSA was\n                    set at proximal, middle, and distal, while echogenicity was at proximal and\n                    distal points. The results showed significant increases in PT stiffness at all\n                    reference points after start acceleration (p&lt;0.001). PT thickness showed\n                    similar results for stiffness, except for location placed at TT-5\n                    (p&lt;0.001). CSA increased significantly in proximal, middle, and distal\n                    regions (p&lt;0.001), while echogenicity of the tendon increased in\n                    proximal and distal regions (p&lt;0.001) after start acceleration.\n                    Regional-dependent alterations of PT thickness and stiffness may be related to\n                    anatomical and physiological mechanisms due to acute isometric contraction in\n                    the initial phase of standing start. Tendon echogenicity might be also useful in\n                    monitoring tendon mechanical properties and defining acute fatigue-induced\n                    changes.<\/jats:p>","DOI":"10.1055\/a-2018-2781","type":"journal-article","created":{"date-parts":[[2023,1,24]],"date-time":"2023-01-24T00:07:02Z","timestamp":1674518822000},"page":"995-1002","source":"Crossref","is-referenced-by-count":3,"title":["Fatigue-induced Alterations of the Patellar Tendon in Elite Sprint\n                    Track Cyclists"],"prefix":"10.1055","volume":"44","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8182-2975","authenticated-orcid":false,"given":"Sebastian","family":"Klich","sequence":"additional","affiliation":[{"name":"Department of Paralympic Sport, Wroclaw University of Health and Sport\n                    Sciences, Wroc\u0142aw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kamil","family":"Michalik","sequence":"additional","affiliation":[{"name":"Department of Human Motor Skills, Wroclaw University of Health and\n                    Sport Sciences, Wroc\u0142aw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jolanta","family":"Rajca","sequence":"additional","affiliation":[{"name":"Department of Science, Innovation and Development, Galen-Orthopaedics,\n                    Bieru\u0144, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Krzysztof","family":"Ficek","sequence":"additional","affiliation":[{"name":"Department of Physiotherapy, Jerzy Kukuczka Academy of Physical\n                    Education In Katowice, Katowice, Poland"},{"name":"Department of Science, Innovation and Development, Galen-Orthopaedics,\n                    Bieru\u0144, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cesar","family":"Fern\u00e1ndez-de-las-Pe\u00f1as","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy, Occupational Therapy, Rehabilitation\n                    and Physical Medicine, Universidad Rey Juan Carlos, Alcorc\u00f3n,\n                    Spain"},{"name":"C\u00e1tedra Institucional En Docencia, Cl\u00ednica E\n                    Investigaci\u00f3n En Fisioterapia: Terapia Manual, Punci\u00f3n Seca Y\n                    Ejercicio Terap\u00e9utico, Universidad Rey Juan Carlos, Alcorc\u00f3n,\n                    Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adam","family":"Kawczynski","sequence":"additional","affiliation":[{"name":"Department of Biomechanics and Sport Engineering, Gdansk University of\n                    Physical Education and Sport, Gdansk, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pascal","family":"Madeleine","sequence":"additional","affiliation":[{"name":"Health Science and Technology, Aalborg University, Aalborg,\n                    Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2023,10,6]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"5","DOI":"10.1123\/ijspp.2.1.5","article-title":"Understanding sprint-cycling performance: The integration of muscle power,\n                    resistance, and modeling","volume":"2","author":"J C Martin","year":"2007","journal-title":"Int J Sports Physiol Perform"},{"key":"ref2","first-page":"1","article-title":"Using field based data to model sprint track cycling performance","volume":"7","author":"H A Ferguson","year":"2021","journal-title":"Sports Med \u2013 Open"},{"key":"ref3","doi-asserted-by":"crossref","first-page":"42","DOI":"10.1016\/j.ptsp.2018.04.022","article-title":"Effect of short-term cold-water immersion on muscle pain sensitivity in elite\n                    track cyclists","volume":"32","author":"S Klich","year":"2018","journal-title":"Phys Ther 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