Electromyographic Threshold
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Respostas cardiorrespiratórias, neuromuscularese e cinéticas de exercícios de hidroginástica / Cardiorespiratory, neuromuscular and kinetic responses of water aerobic exercises
The aim of the present study was to analyze the cardiorespiratory, neuromuscular and kinetic responses of women performing water aerobic exercises at different effort intensities. In study I, 20 young women (24.0 ± 2.5 years; 163.3 ± 6.7 cm; 60.0 ± 6.7 kg) performed four progressive test sessions, three corresponding to aquatic tests (stationary running (
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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2. Identificação dos limiares de lactato, ventilatórios e eletromiográficos em exercício resistido
Resistance training (RT) has been subject of several scientific studies, since its application not only for aesthetic purposes, but in health promotion and sports activities. To understand the determinants of physical performance is necessary to analyze biochemical, biomechanical and physiological phenomena triggered as a result of each physical activity pro
Publicado em: 2010
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3. Avaliação eletromiográfica de músculos inspiratórios em hemiparéticos / Eliete Moreira Colaço
The objective was measured by surface electromyography (EMGs), the activity of inspiratory muscles during incremental test in subjects with hemiparesis and show its correlation with the Functional Independence Measure (FIM). Were included in the study 32 individuals hemiparetics and 14 healthy as control group. We performed an evaluation of lung function and
Publicado em: 2009
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4. Postural global reeducation and segmental static stretch in individuals with temporomandibular disorder: a comparative study / Efeito da reeducação postural global e do alongamento estático segmentar em portadoras de disfunção temporomandibular: um estudo comparativo
Patients with myogenic temporomandibular disorders (TMD) usually present pain at palpation and during mastication in mandible muscles, increased postural electromyographic activity, and movement limitation. Also, nearby areas such as shoulders and cervical region may present tension, muscle shortening and trigger points. Therapeutic exercises have been used
Publicado em: 2007
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5. Avaliação do sinal eletromiográfico como parâmetro para determinação do limiar de fadiga muscular / Evaluation of the eletromyographic signal as paameter for determination of muscle fatigue threshold
Embora a analise no domínio da freqüência do sinal Eletromiográfico (EMG) seja empregada na caracterização do processo de fadiga muscular localizada sua aplicação, especificamente a da Freqüência Mediana (Fmed), é pouco explorada para a determinação do Limiar de Fadiga Eletromiográfico (LFE). Neste estudo foram realizadas análises baseadas em
Publicado em: 2007
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6. Limiar eletremiogrÃfico da fadiga muscular em homens com peso normal e com sobrepeso
O objetivo deste trabalho foi verificar se existe diferenÃa nos padrÃes dos sinais eletromiogrÃficos durante a fadiga muscular em contraÃÃo isomÃtrica voluntÃria durante o teste de preensÃo manual, em indivÃduos com peso normal e com sobrepeso. Foram estudados 42 voluntÃrios do sexo masculino, com idade entre 18 e 30 anos, saudÃveis, nÃo fumantes
Publicado em: 2004
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7. VentilaÃÃo pulmonar regional durante o teste de resistÃncia dos mÃsculos inspiratÃrios
Incremental threshold loading (ITL) has been proposed as a test of inspiratory muscle endurance. The aim of this study was to analyze regional pulmonary ventilation and electric activity of the respiratory muscles during the test of inspiratory muscles endurance. Ten female volunteerswere studied. Radioaerosol was generated by a jet nebulizer, containing 99m
Publicado em: 2002
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8. Avaliação eletromiografica dos musculos temporal e masseter durante fadiga induzida por mastigação prolongada
The aim of this study was to evaluate the electromyographic changes in the anterior temporalis and masseter muscles after fatigue induced by continuous chewing. Surface electrodes were placed bilaterally over the anterior temporalis and masseter muscles of 31 subjects with normal dentition. Recordings were taken every minute from the beginning of chewing to
Publicado em: 1999
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9. Intracortical facilitation and inhibition after transcranial magnetic stimulation in conscious humans.
1. Changes in excitability of the motor cortex induced by a transcranial magnetic stimulation (TMS) were examined by simultaneous recording of the evoked corticospinal volley and the compound surface electromyographic (EMG) response in the biceps brachii following paired-pulse TMS in five conscious subjects. The effects of a varying interstimulus interval (I
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10. Firing properties of single human motor units during locomotion.
The discharge properties of single motor units in the short extensors of the toes were studied during normal locomotion using electromyographic recordings which permitted the identification of single motor unit potentials. The single motor units were recruited in the same order during slowly increasing speed of locomotion as they were during slowly increasin
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11. Lower limb cutaneous polysynaptic reflexes in the child, according to age and state of waking or sleeping.
An electromyographic study of reflex responses elicited by stimulation of an area of skin in the lower limb was undertaken in awake or sleeping children from 3 days to 3 years of age. Recordings were made on the tibialis anterior and the short head of the femoral biceps. In the awake child, electrical stimulation of the cutaneous area around the toes evoked
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12. Refractory period of single motor nerve fibres in man.
Electromyographic single motor unit recordings were used to study the axonal refractory period of 28 accessory nerve innervated motor units in young normal subjects and 10 reinnervated motor units in elderly subjects. The refractory period was measured after a conditioning antidromic propagated nerve impulse and after a conditioning electrical nerve stimulus