Central fatigue in masticatory muscles by magnetic stimulation

磁刺激导致咀嚼肌中枢疲劳

• 批准号: 07672145
• 负责人: KAWANO Akira
• 金额: $ 1.41万
• 依托单位: OSAKA DENTAL UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07672145/
• 关键词: Evoked EMG; Masseter Muscle; Magnetic Stimulation; Fatigue

The purpose of this study was to analyze the evoked EMG in masseter muscle by transcranial magnetic stimulation on periodic clenching.Eight healthy male subjects were asked to periodic maximum clenching for 15 seconds 15 times.The magnetic stimulation was applied via 8-figuere-shaped coil to the appropriate region of the moter cortex on the scalp at a interval of the maximum clenching.The evoked EMG was picked up from a ipsilateral masseter muscle with a surface electrods.In control, the latency of the evoked EMG in a ipsilateral masseter muscle was 2.4-4.5 msec.by magnetic stimulation, the duration was 3.1-5.0 msec.and the amplitude was 0.59-1.85 mvolt.When the periodic muximum clenching passed, the amplitude was decreased in contrast to the latency and the duration of the evoked EMG.

本研究的目的是分析周期性紧握时经颅磁刺激对咬肌的诱发肌电图。要求 8 名健康男性受试者周期性最大紧握 15 秒，共 15 次。通过 8 字形线圈施加磁刺激在最大咬紧时间间隔到头皮上运动皮层的适当区域。诱发的肌电图是从具有表面的同侧咬肌中获取的对照中，同侧咬肌诱发肌电图的潜伏期为2.4-4.5毫秒。通过磁刺激，持续时间为3.1-5.0毫秒，振幅为0.59-1.85毫伏。当周期性最大咬紧力过去时，与诱发肌电图的潜伏期和持续时间相比，振幅降低。

项目成果

川野 晃: "経頭蓋磁気刺激による咬筋誘発筋電図の分析-間歇的かみしめによる疲労の影響-" 日本補綴歯科学会雑誌. 40巻96回特別号. 162- (1996)

Akira Kawano：“经颅磁刺激引起的咬肌肌电图分析 - 间歇性咬紧牙带来的疲劳效应”，日本修复医学会杂志，第 40 卷，第 96 期特刊（1996 年）。

AKIRA,KAWANO: "Analysis of Evoked EMG in Masseter Muscle by Transcranial Magnetic Stimulation -Effect of Fatigue with Periodic Clenching-" J.Jpn Prosthodont Soc.Vol.40. 162 (1996)

AKIRA，KAWANO：“经颅磁刺激对咬肌诱发肌电图的分析 - 定期咬紧肌肉对疲劳的影响 -”J.Jpn Prosthodont Soc.Vol.40。

川野晃: "経頭蓋磁気刺激による咬筋誘発筋電図の分析 -間歇的かみしめによる疲労の影響-" 日本補綴歯科学会雑誌. 40巻 96回特別号. 162 (1996)

Akira Kawano：“经颅磁刺激引起的咬肌肌电图分析 - 间歇性紧握引起的疲劳的影响 -”日本修复医学会杂志，第 40 卷，第 96 期特刊（1996 年）。