{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T05:01:02Z","timestamp":1784869262402,"version":"3.55.0"},"reference-count":37,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T00:00:00Z","timestamp":1784678400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Funct. Morphol. Kinesiol.","JFMK"],"abstract":"<jats:p>Background: Exercise-specific warm-up may influence fatigue-related performance decline and the restoration of performance between repeated resistance-training sets. This study examined whether a cambered-bar warm-up, compared with a standard-bar warm-up, affected first-repetition velocity and power retention and acceleration\u2013time characteristics. Methods: This randomized parallel-group study included twenty resistance-trained men randomly allocated to a cambered-bar condition (CAM; n = 10) or a standard-bar condition (ST; n = 10). The warm-up comprised four sets at 30%, 50%, 60%, and 70% of one-repetition estimated maximum (1RM). After 10 min, participants completed four sets of five standard-bar repetitions at 75% of 1RM, with 2 min inter-set recovery. First-repetition mean concentric velocity retention was the principal outcome. First-repetition power retention, acceleration index, range of motion (ROM), peak velocity, time to peak velocity, and inter-set velocity rebound were analyzed using linear mixed-effects models. Results: During the loading protocol, first-repetition mean concentric velocity and power retention were greater in CAM than ST by 9.82 and 11.65 percentage points, respectively (exact participant-level permutation p = 0.044 and p = 0.012, respectively). No condition \u00d7 target-set interactions were observed, indicating overall between-condition differences averaged across L2\u2013L4 rather than different set-to-set trajectories. No condition effect was observed for inter-set velocity rebound. CAM increased warm-up ROM by 6.34 cm compared with ST. No condition effects or condition \u00d7 stage interactions were observed for warm-up acceleration index, peak velocity, or time to peak velocity. The acceleration index increased across loading sets independently of condition. Conclusions: A cambered-bar warm-up increased movement range and was associated with greater retention of first-repetition mean concentric velocity and power during repeated bench press sets. However, no evidence was found for a between-condition difference in immediate inter-set velocity rebound. These findings suggest that the cambered-bar warm-up condition may support the maintenance of first-repetition mechanical performance across repeated sets, although confirmation in larger randomized crossover studies is required.<\/jats:p>","DOI":"10.3390\/jfmk11030286","type":"journal-article","created":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T13:25:46Z","timestamp":1784726746000},"page":"286","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["First-Repetition Mechanical Performance Retention During Repeated Bench Press Following Standard- and Cambered-Bar Warm-Ups"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5304-7879","authenticated-orcid":false,"given":"Dawid","family":"Ko\u017alenia","sequence":"first","affiliation":[{"name":"Faculty of Physical Education and Sport, Wroclaw University of Health and Sport Sciences, 51-612 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1725","DOI":"10.1249\/MSS.0b013e318213f880","article-title":"Velocity Loss as an Indicator of Neuromuscular Fatigue during Resistance Training","volume":"43","year":"2011","journal-title":"Med. 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