Surface electromyography studies of swallowing-related muscles during pharyngeal swallowing in normal subjects
10.3760/cma.j.issn.0254-1424.2013.12.013
- VernacularTitle:正常成人咽期吞咽相关肌群的表面肌电图研究
- Author:
Lingling LIU
;
Lang SHUAI
;
Zhen FENG
- Publication Type:Journal Article
- Keywords:
Deglutition;
Biomechanics;
Electromyography
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2013;35(12):963-966
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the relationship between the average amplitude of swallowing-related muscles during pharyngeal swallowing and age and swallow model of healthy adults in different age groups.Methods A total of 200 healthy adults were recruited and divided into 4 age groups:group A (18 ～ 30 years old,n =59),group B (30～50 years old,n=50),group C (50 ～70 years old,n=49) and group D (70 years old,n=40).Surface electromyography was used to acquired the average amplitude of electrical activity of the muscles during three swallow models:resting state,voluntary single swallows of saliva (dry swallowing),voluntary single swallows of 5 ml water at once(wet swallowing)and voluntary single swallows 20 ml water at once.The mean value of the average amplitude of normal adults of different ages were calculated and analyzed.Results ①Intergroup comparison showed no difference in the average amplitude of submental muscles and infrahyoid muscles among the 4 age groups (P ＞ 0.05) in all the three swallowing models ;②Intra-group comparison showed that,there were no statistical differences in the average amplitude of submental muscles among the three swallow models between groups A and B (P ＞ 0.05).In group C,there were no statistical differences between dry swallowing and wet swallowing of 5 ml of water in terms of the average amplitude of submental muscles and infrahyoid muscles during dry swallowing.(P ＞ 0.05),however,but there existed statistical differences in terms of the average amplitude of submental muscles and infrahyoid muscles,when comparing dry swallowing with voluntary single swallowing 20 ml water at once(P ＜ 0.05).The average amplitude of submental muscles and infrahyoid muscles during swallowing of 20 ml water were significantly higher than that during wet swallowing(P ＜0.05).In group D,there was no difference between drying swallow and wet swallowing(P ＞ 0.05)in terms of the mean sEMG amplitude of the muscles,but all lower than swallowing 20 ml of water,with a statistically significant differences(P ＜ 0.05).Conclusions The sEMG amplitude in swallowing-related muscles during pharyngeal swallowing is not related to age,but swallowing models.
