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Table 3 Electric activity of m. masseter, submental-submandibular and infrahyoid muscles in a single swallow test, in μV (mean* ± standard deviation).

From: Oral vs. pharyngeal dysphagia: surface electromyography randomized study

 

Dental surgery

Oral infections

Tonsillitis

Control

 

Group 1

Group 2

Group 3

Group 4

Masseter

9.115 ± 4.2

11.25 ± 5.37

28.33 ± 6.74

17.454 ± 7.55

Submental

30.750 ± 9.34

31.63 ± 8.35

34.2 ± 8.54

36.75 ± 10.34

Infrahyoid

14.765 ± 3.12

14.422 ± 4.65

36.73 ± 9.62

15.773 ± 6.95

  1. * Real mean is displayed (raw computer-calculated mean minus the mean resting potential of an actual muscle covered by skin (2.808 μV = for the submental location and infrahyoid location, 2.495 μV = for the masseter location), further normalized.
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BMC Ear, Nose and Throat Disorders

ISSN: 1472-6815

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