{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T01:55:01Z","timestamp":1792634101638,"version":"4.5.0"},"reference-count":37,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2016,7,1]],"date-time":"2016-07-01T00:00:00Z","timestamp":1467331200000},"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":[[2017,7]]},"abstract":"<jats:p>\n                    Recently, ultrasound tissue characterization (\n                    <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content>\n                    ) was introduced as a reliable method for quantification of tendon structure. Despite increasing publications on the use of\n                    <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content>\n                    , it is striking that there is a lack of normative data in active adolescents. Therefore, the aim of this study was to provide normative values of the Achilles tendon as quantified by\n                    <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content>\n                    . Seventy physiotherapy students (26 male and 44 female students) with no history of Achilles tendon injuries were recruited. The Achilles tendons were scanned with\n                    <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content>\n                    to characterize tendon structure. This study demonstrated that Achilles tendons of active, healthy adolescents contained 54.6% echo type I, 42.8% echo type II, 2.2% echo type III, and 0.3% echo type IV at midportion. The comparison between insertion and midportion of the tendon showed more echo type II at insertion (\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0&lt;\u00a00.001). Furthermore, female tendons contained significantly more echo type II, in both insertion and midportion compared with male tendons (\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.004 and\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.003, respectively). The results of this study, with respect to the\n                    <jats:styled-content style=\"fixed-case\">MDC<\/jats:styled-content>\n                    (minimum detectable change), highlight differences in the\n                    <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content>\n                    echopattern in the normal population (sex and regional location), which are important considerations for future studies.\n                  <\/jats:p>","DOI":"10.1111\/sms.12706","type":"journal-article","created":{"date-parts":[[2016,7,1]],"date-time":"2016-07-01T11:44:09Z","timestamp":1467373449000},"page":"746-753","source":"Crossref","is-referenced-by-count":33,"title":["What does normal tendon structure look like? 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