{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T21:42:08Z","timestamp":1790631728228,"version":"4.1.0"},"reference-count":40,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2016,8,19]],"date-time":"2016-08-19T00:00:00Z","timestamp":1471564800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Scandinavian Med Sci Sports"],"published-print":{"date-parts":[[2017,10]]},"abstract":"<jats:p>To investigate the passive muscle tension of the quadriceps muscle heads in male athletes clinically diagnosed with patellar tendinopathy (<jats:styled-content style=\"fixed-case\">PT<\/jats:styled-content>) with those of healthy controls and explore the interplay between passive muscle tension and patellar tendon stiffness. Between November 2012 and December 2013, 66 male athletes (mean age of 21.1\u00a0\u00b1\u00a04.4\u00a0years) were examined using supersonic shear wave imaging technology. The passive tension of the vastus lateralis (<jats:styled-content style=\"fixed-case\">VL<\/jats:styled-content>) and rectus femoris (<jats:styled-content style=\"fixed-case\">RF<\/jats:styled-content>) muscles and patellar tendon stiffness were assessed. The shear elastic modulus of the <jats:styled-content style=\"fixed-case\">VL<\/jats:styled-content> muscle was increased by 26.5% (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.001) in the subjects with <jats:styled-content style=\"fixed-case\">PT<\/jats:styled-content> when compared with the controls. Greater passive tension in the <jats:styled-content style=\"fixed-case\">VL<\/jats:styled-content> was associated with higher patellar tendon stiffness (<jats:italic>r<\/jats:italic>\u00a0=\u00a00.38; <jats:italic>P<\/jats:italic>\u00a0=\u00a00.001). The vastus lateralis muscle of the quadriceps shows increase in passive muscle tension in jumping athletes with patellar tendinopathy. These findings suggest that increase in muscle tension is not similar in the individual muscles of the quadriceps muscle. Traditional stretching of the whole quadriceps muscle might not be targeted to the tight muscle heads.<\/jats:p>","DOI":"10.1111\/sms.12749","type":"journal-article","created":{"date-parts":[[2016,8,19]],"date-time":"2016-08-19T10:46:42Z","timestamp":1471603602000},"page":"1099-1104","source":"Crossref","is-referenced-by-count":28,"title":["Increase in passive muscle tension of the quadriceps muscle heads in jumping athletes with patellar tendinopathy"],"prefix":"10.1111","volume":"27","author":[{"given":"Z. J.","family":"Zhang","sequence":"first","affiliation":[{"name":"Guangdong\u2010Hongkong Joint Sports Rehabilitation and Research Center Guangdong Provincial Work Injury Rehabilitation Hospital Guangzhou China"},{"name":"Department of Rehabilitation Sciences The Hong Kong Polytechnic University, Hung Hom Kowloon Hong Kong"},{"name":"Center of Rehabilitation Medicine Henan Provincial Orthopedic Hospital Luoyang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G. Y. F.","family":"Ng","sequence":"additional","affiliation":[{"name":"Department of Rehabilitation Sciences The Hong Kong Polytechnic University, Hung Hom Kowloon Hong Kong"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"W. C.","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Rehabilitation Sciences The Hong Kong Polytechnic University, Hung Hom Kowloon Hong Kong"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S. N.","family":"Fu","sequence":"additional","affiliation":[{"name":"Department of Rehabilitation Sciences The Hong Kong Polytechnic University, Hung Hom Kowloon Hong Kong"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2016,8,19]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/ca.20974"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/TUFFC.2004.1295425"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ptsp.2014.11.001"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0029261"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.2165\/00007256-200737090-00004"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00421-016-3339-5"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0838.2000.010004216.x"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/jor.20415"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0268-0033(03)00090-1"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbiomech.2013.07.033"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0838.1999.tb00211.x"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/nbm.1801"},{"key":"e_1_2_7_14_1","first-page":"43","volume-title":"European Recommendations for Surface Electromyography","author":"Hermens HJ","year":"1999"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1152\/japplphysiol.00561.2014"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1177\/03635465020300051001"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbiomech.2015.05.038"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0044348"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1152\/jappl.1999.87.6.2090"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00421-006-0338-y"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1111\/sms.12021"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1088\/0967-3334\/33\/3\/N19"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0053159"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546504270454"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1177\/036354659602400322"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1177\/03635465030310031401"},{"key":"e_1_2_7_27_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbmt.2008.05.007"},{"key":"e_1_2_7_28_1","doi-asserted-by":"publisher","DOI":"10.2165\/00007256-199826040-00004"},{"key":"e_1_2_7_29_1","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.1998.27.6.389"},{"key":"e_1_2_7_30_1","doi-asserted-by":"publisher","DOI":"10.1152\/japplphysiol.01323.2009"},{"key":"e_1_2_7_31_1","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200609000-00019"},{"key":"e_1_2_7_32_1","doi-asserted-by":"publisher","DOI":"10.1152\/jappl.1999.86.5.1445"},{"key":"e_1_2_7_33_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2015-095215"},{"key":"e_1_2_7_34_1","doi-asserted-by":"publisher","DOI":"10.1121\/1.3559681"},{"key":"e_1_2_7_35_1","article-title":"Architectural adaptations of muscle to training and injury: a narrative review outlining the contributions by fascicle length, pennation angle and muscle thickness","volume":"27","author":"Timmins RG","year":"2016","journal-title":"Br J Sports Med"},{"key":"e_1_2_7_36_1","doi-asserted-by":"publisher","DOI":"10.1097\/00042752-199404000-00002"},{"key":"e_1_2_7_37_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbiomech.2010.08.033"},{"key":"e_1_2_7_38_1","doi-asserted-by":"publisher","DOI":"10.1177\/03635465010290021201"},{"key":"e_1_2_7_39_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.2011.084079"},{"key":"e_1_2_7_40_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0108337"},{"key":"e_1_2_7_41_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546510395492"}],"container-title":["Scandinavian Journal of Medicine &amp; Science in Sports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fsms.12749","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fsms.12749","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/sms.12749","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,29]],"date-time":"2023-09-29T22:45:04Z","timestamp":1696027504000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/sms.12749"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,8,19]]},"references-count":40,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2017,10]]}},"alternative-id":["10.1111\/sms.12749"],"URL":"https:\/\/doi.org\/10.1111\/sms.12749","archive":["Portico"],"relation":{},"ISSN":["0905-7188","1600-0838"],"issn-type":[{"value":"0905-7188","type":"print"},{"value":"1600-0838","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,8,19]]}}}