{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T00:56:18Z","timestamp":1792803378455,"version":"4.5.0"},"reference-count":40,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2013,12,27]],"date-time":"2013-12-27T00:00:00Z","timestamp":1388102400000},"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":[[2014,8]]},"abstract":"<jats:p>Adolescence may be regarded as a critical phase of tissue plasticity in young growing athletes, as the adaptation process of muscle\u2010tendon unit is affected by both environmental mechanical stimuli and maturation. The present study investigated potential imbalances of knee extensor muscle strength and patellar tendon properties in adolescent compared with middle\u2010aged athletes featuring long\u2010term musculotendinous adaptations. Nineteen adolescent elite volleyball athletes [(<jats:styled-content style=\"fixed-case\">A<\/jats:styled-content>), 15.9\u2009\u00b1\u20090.6 years] and 18 middle\u2010aged competitively active former elite volleyball athletes [(<jats:styled-content style=\"fixed-case\">MA<\/jats:styled-content>), 46.9\u2009\u00b1\u20090.6 years] participated in magnetic resonance imaging and ultrasound\u2010dynamometry sessions to determine quadriceps femoris muscle strength, vastus lateralis morphology and patellar tendon mechanical and morphological properties. There was no significant age effect on the physiological cross\u2010sectional area of the vastus lateralis and maximum knee extension moment (<jats:italic>P<\/jats:italic>\u2009&gt;\u20090.05) during voluntary isometric contractions. However, the patellar tendon cross\u2010sectional area was significantly smaller (<jats:styled-content style=\"fixed-case\">A<\/jats:styled-content>: 107.4\u2009\u00b1\u200927.5\u2009mm<jats:sup>2<\/jats:sup>; <jats:styled-content style=\"fixed-case\">MA<\/jats:styled-content>: 121.7\u2009\u00b1\u200939.8\u2009mm<jats:sup>2<\/jats:sup>) and the tendon stress during the maximal contractions was significantly higher in adolescent compared with the middle\u2010aged athletes (<jats:styled-content style=\"fixed-case\">A<\/jats:styled-content>: 50.0\u2009\u00b1\u200910.1\u2009<jats:styled-content style=\"fixed-case\">MPa<\/jats:styled-content>; <jats:styled-content style=\"fixed-case\">MA<\/jats:styled-content>: 40.0\u2009\u00b1\u20099.5\u2009<jats:styled-content style=\"fixed-case\">MPa<\/jats:styled-content>). These findings provide evidence of an imbalanced development of muscle strength and tendon mechanical and morphological properties in adolescent athletes, which may have implications for the risk of tendon overuse injuries.<\/jats:p>","DOI":"10.1111\/sms.12166","type":"journal-article","created":{"date-parts":[[2013,12,27]],"date-time":"2013-12-27T07:14:40Z","timestamp":1388128480000},"source":"Crossref","is-referenced-by-count":41,"title":["Evidence of imbalanced adaptation between muscle and tendon in adolescent athletes"],"prefix":"10.1111","volume":"24","author":[{"given":"F.","family":"Mersmann","sequence":"first","affiliation":[{"name":"Department of Training and Movement Sciences Humboldt\u2010Universit\u00e4t zu Berlin  Berlin Germany"},{"name":"Center for Sports Science and Sports Medicine  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.","family":"Bohm","sequence":"additional","affiliation":[{"name":"Department of Training and Movement 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