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Sport-students were randomised to isokinetic (IG) or Nordic hamstring (NG) exercise or a control group (CG) for six weeks. Training and testing procedures were matched to biomechanical parameters. Hamstring strength (EPT), work, muscle soreness (visual analogue scale (VAS)), biceps femoris (BF<jats:sub>lh<\/jats:sub>) muscle size and architecture were assessed. Anthropometrics and strength parameters did not differ at baseline. Yet, body mass normalised EPT, and work revealed a significant group\u2009\u00d7\u2009time\u2009\u00d7\u2009device effect, with a significant main effect for devices. Experimental conditions triggered meaningful increases in EPT compared to the control group, but the effects were higher when recorded on the training device. Despite significant group\u2009\u00d7\u2009time interactions, normalised average work on the NHD was only higher in the NG compared to CG of the left leg (+\u200935%). No effects were found for BF<jats:sub>lh<\/jats:sub> parameters. Hamstrings showed a high training specificity, but adaptations likely remain undetected owing to the low sensitivity of conventional test devices. Moreover, strength increase of\u2009~\u200915% does not necessarily have to be reflected in BF<jats:sub>lh<\/jats:sub> parameters.<\/jats:p>","DOI":"10.1038\/s41598-021-92929-y","type":"journal-article","created":{"date-parts":[[2021,6,28]],"date-time":"2021-06-28T10:02:47Z","timestamp":1624874567000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Specificity of eccentric hamstring training and the lack of consistency between strength assessments using conventional test devices"],"prefix":"10.1038","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8526-2832","authenticated-orcid":false,"given":"Hans-Peter","family":"Wiesinger","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manuel","family":"Scharinger","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander","family":"K\u00f6sters","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christoph","family":"Gressenbauer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erich","family":"M\u00fcller","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,6,28]]},"reference":[{"key":"92929_CR1","doi-asserted-by":"publisher","first-page":"1663","DOI":"10.1080\/02640414.2017.1409609","volume":"36","author":"L Ish\u00f8i","year":"2018","unstructured":"Ish\u00f8i, L. et al. 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