{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,15]],"date-time":"2026-04-15T16:56:44Z","timestamp":1776272204636,"version":"3.50.1"},"reference-count":30,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2018,6,7]],"date-time":"2018-06-07T00:00:00Z","timestamp":1528329600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Oral Rehabilitation"],"published-print":{"date-parts":[[2018,8]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>High\u2010intensity eccentric\u2010concentric contractions of the jaw\u2010closing muscles induce muscle soreness, fatigue and functional impairment of the jaw, resembling the symptoms of myalgia, according to the Diagnostic Criteria for Temporomandibular Disorders (<jats:styled-content style=\"fixed-case\">DC<\/jats:styled-content>\/<jats:styled-content style=\"fixed-case\">TMD<\/jats:styled-content>). However, it is claimed that repetition of similar exercises can minimise these detrimental effects. This study aimed to evaluate the response of jaw\u2010closing muscles following two series of intense eccentric\u2010concentric exercises of the masticatory muscles in healthy subjects. Twelve pain\u2010free participants underwent 2 sessions of intense eccentric\u2010concentric jaw exercises, with 1\u2010week interval in between. Each session of jaw exercises comprises 6 sets of 5\u2010minute\u2010long bouts of concentric\u2010eccentric contractions. Self\u2010reported muscle fatigue and pain, maximum mouth opening without pain (<jats:styled-content style=\"fixed-case\">MMO<\/jats:styled-content>), pain pressure thresholds (<jats:styled-content style=\"fixed-case\">PPT<\/jats:styled-content>s) of temporalis and masseter muscles and maximum voluntary bite force (<jats:styled-content style=\"fixed-case\">MVBF<\/jats:styled-content>) were recorded before, immediately after, 24 and 48\u00a0hours after each bout of exercises. <jats:styled-content style=\"fixed-case\">ANOVA<\/jats:styled-content> for repeated measurements was used to analyse the data. During session 2, muscle pain and fatigue were statistically significantly decreased (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a0.05) as compared to session 1. Furthermore, statistically significant increases of <jats:styled-content style=\"fixed-case\">MVBF<\/jats:styled-content> (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a0.005), <jats:styled-content style=\"fixed-case\">MMO<\/jats:styled-content> (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a0.005) and <jats:styled-content style=\"fixed-case\">PPT<\/jats:styled-content>s (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a0.005) were found at session 2 as compared to session 1. Within the limitations of the study, is can be concluded that the repetition of eccentric\u2010concentric jaw\u2010closing exercises results in signs of muscle training. Future studies can elucidate whether this motor training might be useful for the treatment of myalgia.<\/jats:p>","DOI":"10.1111\/joor.12656","type":"journal-article","created":{"date-parts":[[2018,5,21]],"date-time":"2018-05-21T13:09:24Z","timestamp":1526908164000},"page":"575-580","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Two repetitive bouts of intense eccentric\u2010concentric jaw exercises reduce experimental muscle pain in healthy subjects"],"prefix":"10.1111","volume":"45","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2588-2949","authenticated-orcid":false,"given":"R.","family":"Bucci","sequence":"first","affiliation":[{"name":"Department of Neurosciences, Reproductive Sciences and Oral Sciences University of Naples Federico II  Naples 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