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Copyright of Revista de Investigación Cuerpo, Cultura y Movimiento is the property of Universidad Santo Tomas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Andaluza de Medicina del Deporte is the property of Centro Andaluza de Medicina del Deporte and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Actas de Diseño is the property of Facultad de Diseno y Comunicacion, Fundacion Universidad de Palermo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Andaluza de Medicina del Deporte is the property of Centro Andaluza de Medicina del Deporte and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The hamstrings have high rate prevalence and lesion recurrence rate in the sport. Recently, the stability target has been a concept highly studied for its high relationship with this type of injury. In this sense, the objective of the study was to verify the electrical activation of the biceps femoris, vastus lateralis and rectus femoris during supine bridge exercises. The study included four female students with a mean age of 26.5 ± 1.73 years. Muscle participation was analyzed by means of electrical activation of the biceps femoris, vastus lateralis and rectus femoris using electromyography. It was performed ten repetitions for the bridge exercise in bipedal support and single leg in stable base, and for bipedal bridge in unstable base. Maximum voluntary isometric contraction (MVIC) 5s for normalization of the electromyographic signal was used. The electrical activation of the biceps femoris muscle (hip extensor) at the bridge bipedal support was 23.3% MVIC for the single leg bridge of 36.9% MVIC and bridge in unstable base with Swiss ball of 54.3% MVIC. For the extensor muscles of the knee (rectus femoris, vastus lateralis) activation ranged from 2.2 to 4.4% MVIC. The biceps femoris muscle has an important recruitment in supine bridge exercises can this be prescribed for strengthening and rehabilitation of these muscles. [ABSTRACT FROM AUTHOR]

Copyright of Biomedical Engineering Journal / Revista Ingeniería Biomédica is the property of Biomedical Engineering Journal / Revista Ingenieria Biomedica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of ConScientiae Saúde is the property of Nove de Julho University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction: scoliosis is characterized by tridimensional modifications consisting of lateral curvature on the frontal plane, lateral rotation on the transverse plane, and rectification on the sagittal plane. Measurement of the scoliotic curve is utilized to follow its evolving character and its muscular behavior, and the assessment performed through the electromyography can be an important indicative of predisposition regarding scoliosis progression. The objective of this study was to assess the behavior of muscles involved in the scoliosis biomechanics through the electromyographic exam. Methods: to accomplish this present study, a nine years old female subject with idiopathic thoracolumbar "S" scoliosis was evaluated. The patient was diagnosed 6 months prior to the study, and presented Cobb angle of 20o in both curvatures. The electromyographic exam assessed the muscles multifidus, longissimus thoracis, and iliocostalis, bilaterally. Results: after analyzing the RMS (Root Means Square) values obtained during rest orthostatism, it was observed activity of the assessed musculature was greater in the left antimere, in the convex side of the primary curvature. Conclusions: it was observed muscle activation asymmetry, fact that may contribute to the progression of the scoliotic curvature. [ABSTRACT FROM AUTHOR]

Introdução: A postura da cabeça é um fator significativo nos estudos de movimentos do osso hioide e na função dos músculos supra e infra-hioideos. A maior parte da literatura presente sobre as funções normais desses músculos apresenta achados qualitativos e não quantitativos, ou associados a alguma disfunção, sendo assim, o objetivo desse trabalho foi avaliar a ativação muscular através dos valores de RMS (root mean square) dos músculos supra-hioideos (SH) e infra-hioideos (IH) durante o repouso (REP), flexão da cabeça (FL), extensão da cabeça (EX), rotação da cabeça para o lado direito (RD), rotação da cabeça para o lado esquerdo (RE), inclinação da cabeça para o lado direito (ID), inclinação da cabeça para o lado esquerdo (IE). Materiais e método: Participaram do estudo cinco voluntários do sexo feminino (idade: 30.6 anos +/-6.18), com todos os dentes em relação de classe I de Angle. Foi utilizado o equipamento ADS1200 Lynx e eletrodos de superfíciebipolares com 20 mm de distância. Antes das coletas foi realizada a preparação da pele. Aplicadosos filtrospassa baixa de 500 Hze passa alta de 20 Hz com taxa de aquisiçãode 1000 Hz. Os valores eletromiográficos foram expressospelo RMS, na unidade de μV, calculados através do software Lynx AqDAnalysis, e apresentados atravésda estatística descritiva (média e desvio-padrão). Avisualização e processamento do sinal foi utilizado o software AqDAnalysis. Resultados: Os músculos SH mostraram maior ativação durante a flexão da cabeça e durante a extensão ocorreu ativação moderada. Durante as rotações, os músculos SH mostraram baixa ativação, ao contrário do IH. Os IH contralaterais ao movimento de rotação mostraram maior ativação do que os ipsilaterais, isso pode ser explicado por um mecanismo fisiológico compensatório que ajuda a manter as vias aéreas na postura centralizada. Durante a inclinação da cabeça, os músculos IH ipsilaterais mostraram maior ativação do que os contralaterais, uma vez que a solicitação de atividade ipsilateral ultrapassa a capacidade de resistência contralateral. Conclusões: Pode-se concluir que os músculos SH apresentam maior atividade eletromiográfica no movimento de FL, e atividade moderada no movimento de EX. Os IHD apresentam maior atividade nos movimentos de RE e ID, enquanto os músculos IHE apresentam maior atividade nos movimentos de RD e IE. Os músculos IH bilaterais apresentam atividade moderada no movimento de EX. Sendo assim, nosso estudo sugere que esses músculos são responsáveis por tais ações musculares. [ABSTRACT FROM AUTHOR]