Incomplete Swallowing and Retracted Tongue Maneuvers for Electromyographic Signal Normalization of the Extrinsic Muscles of the Larynx

Balata, P.; Silva, Hilton Justino da; Nascimento, Gerlane Karla O.; Moraes, Klyvia Juliana Rocha de; Pernambuco, Leandro de Araújo; Freitas, Maria Clara Ramalho; Lima, Leilane Maria de; Braga, Renata S.; Souza, Síntia R.; Moraes, Sílvia Regina Arruda de

doi:10.1016/j.jvoice.2012.03.006

Cited by 12 publications

(12 citation statements)

References 14 publications

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“…Therefore, it was not obtained an exercise to use as a comparison. Some authors indicate incomplete swallowing maneuver for normalization of the submental electromyographic signal (15) . For future studies, it is suggested that such a maneuver is incorporated into the research.…”

Section: Discussionmentioning

confidence: 99%

“…For choosing the activity to be suggested in the data standardization process, it was considered that the exercise had the highest value of RMS, lower coefficient of variation and greater statistical significance when compared to the other ones (15) .…”

Section: Electromyographic Evaluationmentioning

confidence: 99%

“…The maneuvers were: incomplete swallowing with effort; tongue pressure on the palate, with open mouth and closed mouth; tongue retraction with open mouth and closed mouth and push a wall. The authors cited the incomplete swallowing maneuver with effort as the most suitable for the normalization of the signal, due to its lower coefficient of variation and greater statistical significance (15) . In clinical practice, there are several other exercises to the strength of the tongue, such as: pressing the tongue against the palate (16) ; protrude the tongue and press it against a wooden spatula positioned near the patient's mouth (17) ; suck the tongue on the palate (18) ; press the tip of your tongue against the incisive papilla (19) ; stretch and retract the tongue (19) ; push the tongue against the cheeks (19) .…”

Section: Introductionmentioning

confidence: 99%

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Comparação da atividade elétrica dos músculos supra-hióideos durante a realização de diferentes exercícios linguais

Furlan

Rezende

Motta

2015

Audiol., Commun. Res.

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o repouso e realização dos exercícios isométricos: sucção de língua no palato; pressão de língua no palato; pressão de ápice de língua contra o palato; pressão de ápice de língua contra a papila palatina; retração exagerada de língua; lateralização de língua e protrusão de língua. A ordem de realização dos exercícios foi randomizada entre os participantes. Os dados coletados foram analisados, utilizando-se os testes Kruskal Wallis e Mann-Whitney. Adotou-se como nível de significância em todas as análises, valor de p≤0,05. Resultados: A atividade elétrica encontrada para todos os exercícios diferiu apenas daquela medida durante o repouso lingual, não apresentando diferença com significância estatística quando os exercícios foram comparados entre si. Conclusão: Não houve diferença na ativação elétrica da musculatura supra-hióidea nos diversos tipos de exercícios realizados. Portanto, nenhum destes exercícios foi mais apropriado, em relação aos demais, para normalização dos dados.

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Section: Discussionmentioning

confidence: 99%

Section: Electromyographic Evaluationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparação da atividade elétrica dos músculos supra-hióideos durante a realização de diferentes exercícios linguais

Furlan

Rezende

Motta

2015

Audiol., Commun. Res.

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“…The EMG signals of the suprahyoid muscles are detectable via electrodes placed on the skin of the underside of the jaw [33][34][35]. The suprahyoid muscles comprise several muscle groups such as digastric muscles, stylohyoid muscles, mylohyoid muscles, and geniohyoid muscles, as presented in Fig.…”

Section: Emg Measurement Approachmentioning

confidence: 99%

Tongue interface based on surface EMG signals of suprahyoid muscles

et al. 2016

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The research described herein was undertaken to develop and test a novel tongue interface based on classification of tongue motions from the surface electromyography (EMG) signals of the suprahyoid muscles detected at the underside of the jaw. The EMG signals are measured via 22 active surface electrodes mounted onto a special flexible boomerang-shaped base. Because of the sensor's shape and flexibility, it can adapt to the underjaw skin contour. Tongue motion classification was achieved using a support vector machine (SVM) algorithm for pattern recognition where the root mean square (RMS) features and cepstrum coefficients (CC) features of the EMG signals were analyzed. The effectiveness of the approach was verified with a test for the classification of six tongue motions conducted with a group of five healthy adult volunteer subjects who had normal motor tongue functions. Results showed that the system classified all six tongue motions with high accuracy of 95.1 ± 1.9 %. The proposed method for control of assistive devices was evaluated using a test in which a computer simulation model of an electric wheelchair was controlled using six tongue motions. This interface system, which weighs only 13.6 g and which has a simple appearance, requires no installation of any sensor into the mouth cavity. Therefore, it does not hinder user activities such as swallowing, chewing, or talking. The number of tongue motions is sufficient for the control of most assistive devices.

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“…Specifically, regarding the extrinsic laryngeal muscles, the principle of maximum voluntary sustained activity (MVSA) is the most current reference. 6 Phonation is a dynamic phenomenon and its clinical evaluation involves sustained emissions, as in continuous vowels and nonsustained emissions, like the excerpts of connected or spontaneous speech, reading, or singing. Thus, even there being predilection in most studies for using the MVC, there is no consensus on the muscles to be evaluated and on the normalization method to be used.…”

Section: Introductionmentioning

confidence: 99%

Normalization Patterns of the Surface Electromyographic Signal in the Phonation Evaluation

et al. 2015

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Incomplete Swallowing and Retracted Tongue Maneuvers for Electromyographic Signal Normalization of the Extrinsic Muscles of the Larynx

Cited by 12 publications

References 14 publications

Comparação da atividade elétrica dos músculos supra-hióideos durante a realização de diferentes exercícios linguais

Comparação da atividade elétrica dos músculos supra-hióideos durante a realização de diferentes exercícios linguais

Tongue interface based on surface EMG signals of suprahyoid muscles

Normalization Patterns of the Surface Electromyographic Signal in the Phonation Evaluation

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