ERIC Number: EJ803603
Record Type: Journal
Publication Date: 2008-Aug-1
Abstractor: As Provided
Reference Count: 0
Quantitative Contributions of the Muscles of the Tongue, Floor-of-Mouth, Jaw, and Velum to Tongue-to-Palate Pressure Generation
Palmer, Phyllis M.; Jaffe, Debra M.; McCulloch, Timothy M.; Finnegan, Eileen M.; Van Daele, Douglas J.; Luschei, Erich S.
Journal of Speech, Language, and Hearing Research, v51 n4 p828-835 Aug 2008
Purpose: The purpose of this investigation was to evaluate the relationship between tongue-to-palate pressure and the electromyography (EMG) measured from the mylohyoid, anterior belly of the digastric, geniohyoid, medial pterygoid, velum, genioglossus, and intrinsic tongue muscles. Methods: Seven healthy adults performed tongue-to-palate pressure tasks at known percentages of their maximum pressure while intramuscular EMG was recorded from the muscles stated above. Multiple regression analysis was performed. Results: Predictors of pressure included the posterior fibers of the genioglossus, mylohyoid, anterior belly of digastric, medial pterygoid, and intrinsic tongue. Conclusions: Increasing tongue-to-palate pressure coincides with increased muscle activity. Activation of the floor-of-mouth, tongue, and jaw closing muscles increased tongue-to-palate pressure. These findings support the use of a tongue-press exercise to strengthen floor-of-mouth muscles, tongue, and jaw-closing muscles.
Descriptors: Human Body, Adults, Motor Reactions, Predictor Variables, Multiple Regression Analysis, Biomechanics
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A