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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Dental Medicine / Faculty of Dental Medicine >
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Effects of Low-Intensity Contractions of Different Craniofacial Muscles in Healthy Participants - An Experimental Cross-Over Study
| Title: | Effects of Low-Intensity Contractions of Different Craniofacial Muscles in Healthy Participants - An Experimental Cross-Over Study |
| Authors: | Ikoma, Tomoko Browse this author | | Bendixen, Karina Haugaard Browse this author | | Arima, Taro Browse this author →KAKEN DB | | Dawson, Andreas Browse this author | | Yamaguchi, Taihiko Browse this author →KAKEN DB | | List, Thomas Browse this author | | Svensson, Peter Browse this author |
| Keywords: | experimental muscle pain | | tooth clenching | | orbicularis oculi | | orbicularis oris | | orofacial pain |
| Issue Date: | Apr-2018 |
| Publisher: | John Wiley & Sons |
| Journal Title: | Headache |
| Volume: | 58 |
| Issue: | 4 |
| Start Page: | 559 |
| End Page: | 569 |
| Publisher DOI: | 10.1111/head.13280 |
| Abstract: | Objective.-Repetitive jaw-muscle activity characterized by clenching or grinding of the teeth and/or by bracing or thrusting of the mandible, ie, bruxism, is traditionally linked to pain and unpleasantness in the active muscles. The aim of this study was to investigate the effects of standardized craniofacial muscle contractions on self-reported symptoms. Methods.-Sixteen healthy volunteers performed six 5-minute bouts of 20% maximal voluntary contraction task of the jaw-closing (Jaw), the orbicularis-oris (O-oris), and the orbicularis-oculi (O-oculi) muscles. Participants rated their perceived pain, unpleasantness, fatigue, and mental stress levels before, during, and after the contraction tasks on 0-10 Numeric Rating Scales (NRS). Each muscle contraction task (= 1 session) was separated by at least 1 week and the order of the sessions was randomized in each subject. Results.-All muscle contraction tasks evoked significant increases in NRS scores of pain (mean +/- SD: Jaw; 3.8 +/- 2.7, O-oris; 1.9 +/- 2.2, O-oculi; 1.4 +/- 1.3, P < .014), unpleasantness (Jaw; 4.1 +/- 2.5, O-oris; 2.1 +/- 1.9, O-oculi; 2.9 +/- 1.8, P<.001), fatigue (Jaw; 5.8 +/- 2.0, O-oris; 3.2 +/- 2.3, O-oculi; 3.6 +/- 1.9, P<.001), and mental stress (Jaw; 4.1 +/- 2.1, O-oris; 2.2 +/- 2.7, O-oculi; 2.9 +/- 2.2, P<.001). The Jaw contractions were associated with higher NRS scores compared with the O-oris and the O-oculi contractions (P<.005) without differences between the O-oris and the O-oculi (P>.063). All symptoms disappeared within 1 day (P>.469). Conclusions.-The results showed that submaximal static contractions of different craniofacial muscle groups could evoke transient, mild to moderate levels of muscle pain and fatigue and increased stress scores. The fatigue resistance may differ between different muscle groups. Further studies are warranted to better understand the contribution of specific craniofacial muscle groups for the characteristic presentation of musculoskeletal pain conditions in the head. |
| Rights: | This is the peer reviewed version of the following article: [Effects of Low‐Intensity Contractions of Different Craniofacial Muscles in Healthy Participants – An Experimental Cross‐Over Study], which has been published in final form at [https://doi.org/10.1111/head.13280]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/73358 |
| Appears in Collections: | 歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 有馬 太郎
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