年轻成年人吞咽液体时咬肌的电活动。
Electrical activity of masseter muscle in young adults during swallowing of liquid.
作者信息
Pernambuco Leandro de Araújo, Silva Hilton Justino da, Lima Leilane Maria de, Cunha Renata Andrade da, Santos Veridiana da Silva, Cunha Daniele Andrade da, Leão Jair Carneiro
机构信息
Universidade Federal do Rio Grande do Norte, Natal, RN, Brasil.
出版信息
J Soc Bras Fonoaudiol. 2011 Sep;23(3):214-9.
PURPOSE
To characterize the electrical activity of the masseter muscle during swallowing of liquids in healthy young adults.
METHODS
Participants were 14 volunteers considered healthy according to the inclusion and exclusion criteria established for this study. The bilateral electromyographic evaluation of the masseter muscle was conducted at rest and in swallowing tasks of 14.5 ml, 20 ml and 100 ml of liquid. The electromyographic signal was normalized by the maximum voluntary activity resisted (MVAR), considered as 100% of the muscle's electrical activity.
RESULTS
In the right masseter, the highest average percentage was found in the 20 ml task, and in the left masseter, in the 14.5 ml task. In the right masseter there was difference between the 14.5 ml and the 20 ml swallowing tasks. In the left masseter, no differences were found between the swallowing tasks.
CONCLUSION
The electrical activity of the masseter muscle in healthy young adults during deglutition of liquids can be influenced by volume swallowed, and present different responses bilaterally.
目的
描述健康年轻成年人吞咽液体时咬肌的电活动特征。
方法
根据本研究制定的纳入和排除标准，14名志愿者被认为是健康的。在静息状态以及吞咽14.5毫升、20毫升和100毫升液体的任务中，对咬肌进行双侧肌电图评估。肌电信号通过最大自主抗阻活动（MVAR）进行标准化，MVAR被视为肌肉电活动的100%。
结果
在右侧咬肌中，20毫升任务时平均百分比最高；在左侧咬肌中，14.5毫升任务时平均百分比最高。右侧咬肌在14.5毫升和20毫升吞咽任务之间存在差异。左侧咬肌在吞咽任务之间未发现差异。
结论
健康年轻成年人在吞咽液体时，咬肌的电活动会受到吞咽量的影响，并且双侧表现出不同的反应。
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