{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T04:37:49Z","timestamp":1790743069174,"version":"4.1.0"},"reference-count":56,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2025,3,18]],"date-time":"2025-03-18T00:00:00Z","timestamp":1742256000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["European Journal of Sport Science"],"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Resistance exercise (RE) with hydrolysed collagen (HC) supplementation increases collagen synthesis in young and middle\u2010aged populations, and further enhances tendon adaptations to chronic RE in young athletes. However, it is unknown if middle\u2010aged tendon can benefit from chronic RE with HC supplementation. We investigated the effects of 12\u2010weeks\u2019 RE, combined with HC supplementation, on changes in patellar tendon (PT) properties in <jats:italic>middle\u2010aged men<\/jats:italic>. In a double\u2010blind design, 20 recreationally active men (age, 47\u00a0\u00b1\u00a05\u00a0years) were randomly assigned to a placebo (PLA, <jats:italic>n<\/jats:italic>\u00a0=\u00a011) or collagen (COL, <jats:italic>n<\/jats:italic>\u00a0=\u00a09) group. Both cohorts completed progressive lower\u2010limb RE twice weekly for 12 weeks\u00a0and were supplemented post\u2010RE with COL (30\u00a0g HC and 50\u00a0mg vitamin C) or PLA (30.5\u00a0g maltodextrin and 50\u00a0mg vitamin C). The following were assessed before and after the 12\u2010week intervention: barbell back squat 10\u2010repetition maximum (10\u2010RM); vastus lateralis (VL) muscle thickness and PT cross\u2010sectional area (CSA at 25%, 50% and 75% tendon length) using ultrasonography; isometric knee extension maximum voluntary torque (MVT) and peak rate of torque development (pRTD), PT stiffness (<jats:italic>k<\/jats:italic>) and Young\u2019s modulus (<jats:italic>\u2130<\/jats:italic>) using ultrasonography and isokinetic dynamometry. MVT<jats:sub>,<\/jats:sub> pRTD, 10\u2010RM and VL thickness all increased post\u2010training (<jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.05), but there were no group\u00a0\u00d7\u00a0time interactions (<jats:italic>p<\/jats:italic>\u00a0&gt;\u00a00.05). Mean PT CSA increased more in COL (+6.8\u00a0\u00b1\u00a05.4\u00a0mm<jats:sup>2<\/jats:sup>) than PLA (+1.2\u00a0\u00b1\u00a02.1\u00a0mm<jats:sup>2<\/jats:sup>, group\u00a0\u00d7\u00a0time <jats:italic>p<\/jats:italic>\u00a0=\u00a00.027). Similarly, <jats:italic>k<\/jats:italic> and <jats:italic>\u2130<\/jats:italic> increased more in COL (<jats:italic>k<\/jats:italic>, +661\u00a0\u00b1\u00a0331\u00a0N\/mm and <jats:italic>\u2130,<\/jats:italic> +0.21\u00a0\u00b1\u00a00.13\u00a0GPa) than PLA (<jats:italic>k,<\/jats:italic> +247\u00a0\u00b1\u00a0305\u00a0N\/mm, group\u00a0\u00d7\u00a0time, <jats:italic>p<\/jats:italic>\u00a0=\u00a00.009 and <jats:italic>\u2130,<\/jats:italic> +0.09\u00a0\u00b1\u00a00.13\u00a0GPa, group\u00a0\u00d7\u00a0time, <jats:italic>p<\/jats:italic>\u00a0=\u00a00.018). In conclusion, 12\u2010weeks\u2019 RE with 30\u00a0g HC supplementation augmented gains in PT CSA, stiffness and Young\u2019s modulus in <jats:italic>middle\u2010aged<\/jats:italic> men.<\/jats:p>","DOI":"10.1002\/ejsc.12281","type":"journal-article","created":{"date-parts":[[2025,3,18]],"date-time":"2025-03-18T11:44:36Z","timestamp":1742298276000},"source":"Crossref","is-referenced-by-count":2,"title":["Hydrolysed Collagen Supplementation Enhances Patellar Tendon Adaptations to 12 Weeks\u2019 Resistance Training in Middle\u2010Aged Men"],"prefix":"10.1002","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7304-5072","authenticated-orcid":false,"given":"Christopher D.","family":"Nulty","sequence":"first","affiliation":[{"name":"School of Sport and Exercise Sciences Liverpool John Moores University  Liverpool UK"},{"name":"Department of Health and Sport Science South East Technological University  Carlow 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