{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T10:52:37Z","timestamp":1788346357882,"version":"build-2803163510"},"reference-count":37,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2024,9,19]],"date-time":"2024-09-19T00:00:00Z","timestamp":1726704000000},"content-version":"vor","delay-in-days":18,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Scandinavian Med Sci Sports"],"published-print":{"date-parts":[[2024,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Targeted resistance training stimulates hamstring muscle hypertrophy, but its effect on tendon\u2010aponeurosis geometry is unknown. This study examined changes in hamstring muscle, free tendon, and aponeurosis geometry following a 10\u2009week Nordic or hip extension exercise intervention. Thirty recreationally active males were randomly allocated (<jats:italic>n<\/jats:italic>\u2009=\u200910 per group) to a Nordic, hip extension, or control group. Magnetic resonance imaging of both thighs was acquired pre\u2010 and post\u2010intervention. Changes in free tendon and aponeurosis volume for each hamstring muscle, biceps femoris long head (BFlh) aponeurosis interface area and muscle volume\u2010to\u2010interface area ratio were compared between groups. Regional changes in muscle CSA were examined via statistical parametric mapping. The change in semimembranosus free tendon volume was greater for the Nordic than control group (mean difference\u2009=\u20090.06\u2009cm<jats:sup>3<\/jats:sup>, 95% CI\u2009=\u20090.02\u20130.11\u2009cm<jats:sup>3<\/jats:sup>). No significant between\u2010group differences existed for other hamstring free tendons or aponeuroses. There were no between\u2010group differences in change in BFlh interface area. Change in BFlh muscle volume\u2010to\u2010interface area ratio was greater in the hip extension than Nordic (mean difference\u2009=\u20090.10, 95% CI\u2009=\u20090.007\u20130.19, <jats:italic>p<\/jats:italic>\u2009=\u20090.03) and control (mean difference\u2009=\u20090.12, 95% CI\u2009=\u20090.03\u20130.22, <jats:italic>p<\/jats:italic>\u2009=\u20090.009) groups. Change in muscle CSA following training was greatest in the mid\u2010portion of semitendinosus for both intervention groups, and the mid\u2010portion of BFlh for the hip extension group. There was limited evidence for tendon\u2010aponeurosis hypertrophy after 10\u2009weeks of training with the Nordic or hip extension exercises. For the BFlh, neither intervention altered the interface area although hip extension training stimulated an increase in the muscle volume\u2010to\u2010interface area ratio, which may have implications for localized tissue strains. Alternative muscle\u2010tendon loading strategies appear necessary to stimulate hamstring tendon adaptations.<\/jats:p>","DOI":"10.1111\/sms.14728","type":"journal-article","created":{"date-parts":[[2024,9,19]],"date-time":"2024-09-19T06:13:55Z","timestamp":1726726435000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Hamstring Muscle\u2010Tendon Geometric Adaptations to Resistance Training Using the Hip Extension and Nordic Hamstring Exercises"],"prefix":"10.1111","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8467-8799","authenticated-orcid":false,"given":"Stephanie\u00a0L.","family":"Lazarczuk","sequence":"first","affiliation":[{"name":"School of Health Sciences and Social Work Griffith University  Gold Coast Queensland Australia"},{"name":"Griffith Centre of Biomedical and Rehabilitation Engineering (GCORE), Menzies Health Institute Queensland Griffith University  Gold Coast Queensland 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