Automation of the process for accessing lip forces

The decrease of lip strength results in the absence of lip contact, which may result in musculature neuromuscular imbalance and affect several functions, such as harmonic dental growth, swallowing, speech and breathing. The measurement of lip strength is an important task in clinical speech pathology practice. This paper describes the development of a measurement system to be used in the processes of force assessment of lips. The user can follow the measurement by means of an interface, which allows registration of information, such as patient personal data, measurement and a brief report. The developed system may be used on personal computer at Windows platfor

Desenvolvimento de um instrumento para avaliação da força labial e modelagem computacional do músculo orbicular da boca

Exportado OPUSMade available in DSpace on 2019-08-10T15:27:41Z (GMT). No. of bitstreams: 1 tese_pos_defesa_final.pdf: 2847548 bytes, checksum: 648d0fe133c487bf59c45441a7e9803c (MD5) Previous issue date: 6O músculo orbicular da boca, que constitui os lábios humanos, participa ativamente de funções importantes como a sucção, mastigação, deglutição, fala, respiração e mímica facial. O objetivogeral deste estudo foi desenvolver um instrumento para medição da força dos lábios e como objetivos específicos analisar as características do instrumento bem como da força labial e o desenvolvimento de um modelo computacional do músculo orbicular da boca. Para construção do instrumento foi projetado e confeccionado, em prototipagem rápida, o sistema mecânico, composto por quatro peças posicionadas intraoralmente. Para construção do sistema eletrônico foram inutilizados quatro sensores do tipo FlexiForce. Foi elaborado o sistema de conversão, amplificação e transmissão do sinal, sendo a aquisição dos dados feita por intermédio de um microcontrolador do tipo PIC ®, com interface USB, sendo o armazenamento dos sinais feito em um microcomputador. Após calibração do instrumento foram avaliadas 40 mulheres, com idades entre 20 e 33 anos, média de 24,3, que apresentavam postural habitual de lábios fechados. Foram realizadas três medições consecutivas da força labial máxima, com tempo de contração de sete segundos e intervalo de um minuto entre os testes. Os dados obtidos foram analisados no programa estatístico R, versão 2.11, considerando nível de significância de 5%. Para construção do modelo computacional foram utilizadas imagens de ressonância magnética do músculo orbicular da boca de um indivíduo saudável, do sexo feminino, de 27 anos de idade. O programa MimicsTM foi utilizado para construção do modelo geométrico, sendo o mesmo validado mediante comparação com medidas antropométricas realizadas in vivo. Foram encontrados valores médios da força labial total entre 3,45 a 29,96 N, com média de 13,27 N e valores superiores para a força do lábio superior (7,33 N), quando comparada ao lábio inferior (5,94 N). Obteve-se semelhança estatística nos valores obtidos nas três medições da força labial realizadas consecutivamente no mesmo participante.The orbicularis oris muscle, which constitutes the human lips, actively participates in significant functions such as sucking, mastication, swallowing, speech, breathing, and facial mimic. The principal aim of this study was to develop a device for measuring the lip force and for specifics aim to development a computer model for the orbicularis oris. For building this device, a mechanical system was designed and manufactures using fast prototyping, composed by four intraorallypositioned pieces. Four FlexiForce sensors were used for building the electronic system. The system for signal conversion, amplification, and transmission was elaborated, with the data collection being done by a PIC microcontroller with USB interface and the signal storage being done in a microcomputer. After the device calibration, 40 females subjects between 20 and 33 years of age (mean of 24.3) presenting closed lip habitual postural were evaluated. Three consecutive measurements of maximal lip force were performed, with contraction time of seven seconds and one-minute interval between tests. The obtained data was analyzed using the statistical software R, version 2.11, considering a significance level of 5%. Magnetic resonance images of the orbicularis oris of a healthy 27-year-old female subject were used for building the computerized model. Mimics was used for building the geometric model, which was validated by comparison with anthropometric measurements performed in vivo. The muscular behavior model was obtained fromprevious studies and applied in the finite element software ABAQUSÔ. Mean labial force values from 3.45 N to 29.96 N were found, with average of 13.27 N, and higher values were found for the upper lip force (7.33 N), when compared to the lower lip force (5.94 N). Statistical similarity wasobtained in the values obtained in the three lip force measurements consecutively performed in the same participant

The impact of speech disorders quality of life: a questionnaire proposal

PURPOSE: To develop a questionnaire to analyze the impact of speech disorders on quality of life and verify its reliability. METHODS: A literature review on instruments that assess the quality-of-life was performed, particularly those concerning communication disorders. The questionnaire was designed with 18 closed questions: one related to speech impairments, another about quality-of-life, and 16 questions covering the physical, emotional, and social domains. The questionnaire was applied to a population of 24 individuals of both sexes, aged between 12 and 50 years; 12 patients (case group) had phonetic speech disorders, and 12 (control group) had no impairment in oral communication. They were paired according to age and sex. To analyze the reliability of the instrument, the internal consistency of the items was assessed through Cronbach's Alpha coefficient. RESULTS: The internal consistency of the 16 questions concerning the domains was á=0.93; for the physical domain, á=0.71; for the emotional domain, á=0.77; and for the social domain, á=0.85. CONCLUSION: The questionnaire showed good reliability in identifying the impact of speech disorders on the individuals' quality of life

The impact of speech disorders quality of life: a questionnaire proposal

PURPOSE: To develop a questionnaire to analyze the impact of speech disorders on quality of life and verify its reliability. METHODS: A literature review on instruments that assess the quality-of-life was performed, particularly those concerning communication disorders. The questionnaire was designed with 18 closed questions: one related to speech impairments, another about quality-of-life, and 16 questions covering the physical, emotional, and social domains. The questionnaire was applied to a population of 24 individuals of both sexes, aged between 12 and 50 years; 12 patients (case group) had phonetic speech disorders, and 12 (control group) had no impairment in oral communication. They were paired according to age and sex. To analyze the reliability of the instrument, the internal consistency of the items was assessed through Cronbach's Alpha coefficient. RESULTS: The internal consistency of the 16 questions concerning the domains was á=0.93; for the physical domain, á=0.71; for the emotional domain, á=0.77; and for the social domain, á=0.85. CONCLUSION: The questionnaire showed good reliability in identifying the impact of speech disorders on the individuals' quality of life

Habilidades cognitivo-linguísticas e sua relação com características respiratórias

OBJETIVO: relacionar características respiratórias com o desempenho em habilidades cognitivo-linguísticas de crianças de uma escola pública da grande Belo Horizonte. MÉTODO: estudo transversal, observacional e descritivo. Das 180 crianças recrutadas 131 atenderam aos critérios de inclusão e exclusão. Foram avaliadas 66 crianças da 4ª série e 65 da 3ª série do ensino fundamental, de ambos os gêneros, com idades entre nove e dez anos. Foi utilizado um questionário para investigação das características respiratórias e um protocolo previamente publicado e adaptado a população brasileira para avaliação das habilidades cognitivo-linguísticas. As informações coletadas foram analisadas por meio dos testes de Mann-Whitney e Kruskal Wallis, ao nível de significância de 1%. RESULTADOS: não foi observado valor de p<0,01 na comparação entre as características respiratórias e as pontuações obtidas por cada série no teste das habilidades cognitivo-linguísticas. Observou-se que 59,1% dos alunos apresentaram escores no questionário de pesquisa das características respiratórias entre zero e quatro pontos, indicando pouco comprometimento respiratório. CONCLUSÃO: não foi encontrada relação significante entre o desempenho de habilidades cognitivo-linguísticas e a presença de características respiratórias em escolares de uma escola pública de Belo Horizonte, sendo que as crianças que apresentaram sinais e sintomas de alterações respiratórias não obtiveram desempenho abaixo daquelas sem estas alterações nas habilidades avaliadas

Automation of the process for accessing lip forces

The decrease of lip strength results in the absence of lip contact, which may result in musculature neuromuscular imbalance and affect several functions, such as harmonic dental growth, swallowing, speech and breathing. The measurement of lip strength is an important task in clinical speech pathology practice. This paper describes the development of a measurement system to be used in the processes of force assessment of lips. The user can follow the measurement by means of an interface, which allows registration of information, such as patient personal data, measurement and a brief report. The developed system may be used on personal computer at Windows platfor

Automation of the process for accessing lip forces

The decrease of lip strength results in the absence of lip contact, which may result in musculature neuromuscular imbalance and affect several functions, such as harmonic dental growth, swallowing, speech and breathing. The measurement of lip strength is an important task in clinical speech pathology practice. This paper describes the development of a measurement system to be used in the processes of force assessment of lips. The user can follow the measurement by means of an interface, which allows registration of information, such as patient personal data, measurement and a brief report. The developed system may be used on personal computer at Windows platfor

Avaliação objetiva das forças axiais produzidas pela língua de crianças respiradoras orais Objective evaluation of axial forces produced by the tongue of oral breathing children

OBJETIVO: Quantificar e comparar as forças produzidas pela língua de crianças respiradoras orais pré-cirúrgicas, respiradoras orais em tratamento fonoaudiológico e respiradoras nasais, além de comparar os achados da avaliação objetiva com os dados da avaliação clínica. MÉTODOS: Estudo transversal com 15 crianças, de ambos os gêneros, com idades entre oito e 12 anos, sendo cinco respiradoras orais pré-cirúrgicas (Grupo 1), cinco respiradoras orais em tratamento fonoaudiológico (Grupo 2) e cinco respiradoras nasais (Grupo 3). Foi realizada uma avaliação clínica das características linguais das crianças e, em seguida, uma avaliação objetiva da força axial da língua por meio de equipamento desenvolvido na Universidade Federal de Minas Gerais. Os resultados foram analisados de forma descritiva por meio das medidas de tendência central e dispersão. RESULTADOS: A média dos valores das forças médias encontrada nos Grupos 1, 2 e 3, respectivamente, foi de 5,6, 6,0 e 7,3N. Já a média dos valores de força máxima foi de 8,2, 9,2 e 10,4N. Obtiveram os maiores valores de força média (7,0N) e máxima (10,3N) os indivíduos que apresentaram tensão adequada de língua na avaliação clínica e os valores mais baixos (3,5N e 2,0N) aqueles cuja avaliação subjetiva indicou hipotensão lingual. A análise estatística indicou dados heterogêneos nos Grupos 1 e 2, tendendo a homogêneos no Grupo 1. CONCLUSÕES: A média das forças foi maior nos indivíduos respiradores nasais, seguidos pelos respiradores orais em tratamento fonoaudiológico e, por fim, os respiradores orais pré-cirúrgicos. Houve concordância entre os resultados das avaliações objetiva e clínica.PURPOSE: To quantify and to compare the forces produced by the tongues of pre-surgical mouth-breathing children, oral-breathing children enrolled in therapy and nasal-breathing children, and also to compare the findings of objective and clinical evaluations. METHODS: Transversal study with 15 children of both genders with ages between eight and 12 years: five pre-surgical mouth breathers (Group 1), five mouth breathers enrolled in speech therapy (Group 2) and five nasal-breathing children (Group 3). A clinical assessment of each child's tongue characteristics was carried out, followed by the objective evaluation of the axial centre line force of the tongue using the instrument created at Federal University of Minas Gerais. The results were descriptively analyzed using measures of central tendency and dispersion. RESULTS: The average of the force values found in Groups 1, 2 and 3, respectively, were 5.6, 6.0 and 7.3N. The average values of maximum force were 8.2, 9.2 and 10.4N. The individuals with adequate tongue tension in the clinical evaluation were the ones with highest values of average (7.0N) and maximum force (10.3N). The lowest values (3.5N and 2.0N) were obtained by the subjects whose subjective evaluation showed hypotension of the tongue. Statistical analysis indicated heterogeneous data in Groups 1 and 2, tending towards homogeneous in Group 1. CONCLUSION The average of the forces was higher for nasal breathers, followed by mouth breathers undergoing speech therapy and, finally, pre-surgical oral-breathing children. There was agreement between the results of objective and clinical evaluations