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Updated: Jul 8, 2025

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Corticospinal Excitability Modulation During Action Observation
Published on: December 31, 2013
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在中心关系中增加阻塞的垂直维度是否会影响肌肉活动? 一个电肌图学研究
Carlo E Poggio1,2, Daniele Manfredini3
1Eastman Institute of Oral Health, University of Rochester, New York, USA.
概括
在健康个体中,增加闭塞的垂直维度 (VDO) 到中心关系 (CR) 位置并没有对最大自愿紧 (MVC) 产生负面影响. 马塞特肌肉活动显著增加,这表明CR是VDO调整的可行参考.
科学领域:
- 牙闭塞和大机械学
- 神经肌肉功能和肌肉活动.
- 审美牙科和治疗规划.
背景情况:
- 修改大-下位置,特别是增加垂直阻塞维度 (VDO),用于美容治疗.
- 传统上,中心关系 (CR) 用于VDO增加,但其神经肌肉效应需要进一步研究.
- 了解关系变化期间的肌肉活动对于治疗可预测性至关重要.
研究的目的:
- 为了研究从最大间位置 (MIP) 到升高的VDO CR位置改变大-下关系的神经肌肉效应.
- 评估对大提升器肌肉活动的影响,特别是大和前.
- 为了确定VDO在CR位置上的增加是否会影响最大自发紧 (MVC) 的性能.
主要方法:
- 在15名健康个体中记录了按摩器和前肌的电肌图 (EMG) 活动.
- 参与者在MIP和CR两种位置使用单独的分支进行了MVC.
- 数据,包括根的平均平方幅度和衍生比率,使用配对的t测试进行了比较.
主要成果:
- 最大自愿紧 (MVC) 水平没有受到VDO增加到CR的负面影响.
- 观察到masseter肌肉EMG活动的统计显著增加 (p < 0.005).
- 没有检测到前肌活动的显著变化.
结论:
- 增加VDO到CR位置不会对MVC产生立即的负面影响.
- 观察到的按摩器活性增加可能与VDO增加有关.
- 由于稳定的神经肌肉功能,CR位置被支持作为VDO调整的务实参考.
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