Bucci R, Lobbezoo F, Michelotti A, Orfanou C, Koutris M
Department of Neurosciences, Reproductive Sciences and Oral Sciences, School of Orthodontics and Temporomandibular Disorders, University of Naples Federico II, Naples, Italy.
Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), MOVE Research Institute Amsterdam, University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands.
J Oral Rehabil. 2017 Sep;44(9):655-663. doi: 10.1111/joor.12528. Epub 2017 Jul 10.
Masticatory muscle-pain patients often complain about sensorimotor changes, but the effects of pain on the psychophysical properties remain unclear. This study aimed to investigate the effects of delayed-onset muscle soreness (DOMS) on the jaw's position sense (PS) and occlusal sensitivity (OS). In all, 12 participants underwent intense concentric-eccentric jaw exercises. Self-reported muscle fatigue and pain, pain-free maximum mouth opening (MMO), pain pressure thresholds (PPTs) at right and left masseter and right and left anterior temporalis, maximum voluntary bite force (MVBF), PS and OS were recorded before, immediately after, 24 h, 48 h and 1 week after the exercises. Data were analysed with repeated measures anova. Pain and fatigue increased significantly after the exercises, while fatigue also increased 24 h afterwards. Time and site had a significant effect for PPTs, not for MVBF. MMO decreased significantly 24 h after the exercises. OS and PS did not change significantly. Experimentally induced DOMS does not influence the psychophysical properties of the masticatory system.
咀嚼肌疼痛患者常抱怨感觉运动变化，但疼痛对心理物理特性的影响尚不清楚。本研究旨在调查延迟性肌肉酸痛（DOMS）对下颌位置觉（PS）和咬合敏感性（OS）的影响。共有12名参与者进行了高强度的向心-离心下颌运动。在运动前、运动后即刻、24小时、48小时和1周后记录自我报告的肌肉疲劳和疼痛、无痛最大开口度（MMO）、左右咬肌和左右颞肌前束的疼痛压力阈值（PPTs）、最大自主咬合力（MVBF）、PS和OS。数据采用重复测量方差分析。运动后疼痛和疲劳显著增加，24小时后疲劳也增加。时间和部位对PPTs有显著影响，对MVBF无显著影响。运动24小时后MMO显著降低。OS和PS无显著变化。实验诱导的DOMS不影响咀嚼系统的心理物理特性。
