{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:30:04Z","timestamp":1760146204634,"version":"build-2065373602"},"reference-count":33,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2024,10,8]],"date-time":"2024-10-08T00:00:00Z","timestamp":1728345600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Portuguese Foundation for Science and Technology","award":["UIDB\/04045\/2020","UIDB\/00447\/2020"],"award-info":[{"award-number":["UIDB\/04045\/2020","UIDB\/00447\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Muscles"],"abstract":"<jats:p>Construction work is physically demanding. The tasks involved in this professional occupation physically exhaust workers and put them at high risk of injury. This work aimed to analyze muscle fatigue in civil construction workers with and without a history of physical activity. For this purpose, the muscle activity of the biceps femoris, trapezius transversalis, and erector spinae longissimus muscles was evaluated using surface electromyography. Eleven male civil construction workers aged 26 to 52 years (38.00 \u00b1 9.60), seven of whom were untrained (N = 7) and four of whom were trained (N = 4), participated in this study. Each subject completed two assessments at two different times. A questionnaire was completed for the first assessment, and each subject\u2019s maximum repetition for the deadlift exercise was assessed. In the second assessment, the subjects were assessed while performing the deadlift in four different situations: 50%RM at rest, 70%RM at rest, 70%RM at fatigue, and 50%RM at fatigue. The trained construction workers had higher levels of muscle activity, and there were no significant differences in muscle activation between the fatigued and non-fatigued sets. There appears to be a strong influence of physical exercise on muscle activity and fatigue in civil construction workers.<\/jats:p>","DOI":"10.3390\/muscles3040029","type":"journal-article","created":{"date-parts":[[2024,10,8]],"date-time":"2024-10-08T12:02:10Z","timestamp":1728388930000},"page":"339-348","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Assessment of Muscle Activity During a Deadlift Performed by Construction Workers"],"prefix":"10.3390","volume":"3","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-3405-9053","authenticated-orcid":false,"given":"Renato Alexandre","family":"da Costa-Machado","sequence":"first","affiliation":[{"name":"Department of Sport Sciences, Sport Sciences School of Rio Maior, 2040-413 Rio Maior, Portugal"},{"name":"Research Centre in Sports, Health and Human Development (CIDESD), 5000-801 Vila Real, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8109-4875","authenticated-orcid":false,"given":"Ana","family":"Concei\u00e7\u00e3o","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, Sport Sciences School of Rio Maior, 2040-413 Rio Maior, Portugal"},{"name":"Research Centre in Sports, Health and Human Development (CIDESD), 5000-801 Vila Real, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0703-0205","authenticated-orcid":false,"given":"Fernando","family":"Rocha","sequence":"additional","affiliation":[{"name":"Escola Superior de Educa\u00e7\u00e3o de Set\u00fabal, Instituto Polit\u00e9cnico de Set\u00fabal, 2914-504 Set\u00fabal, Portugal"},{"name":"Life Quality Research Centre (CIEQV), 2040-413 Rio Maior, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5238-1069","authenticated-orcid":false,"given":"Marco","family":"Branco","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, Sport Sciences School of Rio Maior, 2040-413 Rio Maior, Portugal"},{"name":"Centre for the Study of Human Performance (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada-Dafundo, 1499-002 Lisboa, Portugal"},{"name":"SPRINT Sport Physical Activity and Health Research & Innovation Center, 2040-413 Rio Maior, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2024,10,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Hashiguchi, N., Kodama, K., Lim, Y., Che, C., Kuroishi, S., Miyazaki, Y., Kobayashi, T., Kitahara, S., and Tateyama, K. 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