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1.
J. Phys. Educ. (Maringá) ; 32: e3209, 2021. tab, graf
Article in Portuguese | LILACS | ID: biblio-1250175

ABSTRACT

RESUMO O objetivo foi verificar o efeito agudo do alongamento estático (AE) dos músculos Ísquiotibiais sobre o desempenho da força e ativação mioelétrica (EMGRMS) da musculatura antagonista. Doze homens (20,28 ± 1,50 anos; 83,35 ± 17,86 Kg; 177,28 ± 9,64 cm) experientes em treinamento de força foram divididos aleatoriamente nos grupos AE e controle (GC). No AE foram realizadas três repetições de 30s de alongamento estático nos Ísquiotibiais e em seguida foi medida a amplitude de movimento (ADM). Logo após, foi medido o desempenho da força e EMGRMS dos músculos vasto lateral (VL) e vasto medial (VM) durante o teste de 10-RM na cadeira extensora. A ANOVA de duas entradas encontrou diferença significativa na ADM no efeito principal tempo (P = 0,019), quanto para interação grupo x tempo (P = 0,023), com aumento significativo na ADM após o alongamento (P = 0,013). O número de repetições do AL aumentou significativamente (P = 0,014; 16%) em relação ao GC. Não houve mudança significativa no EMGRMS de nenhum dos músculos testados. O emprego do alongamento estático pode melhorar o desempenho da força na musculatura antagonista.


ABSTRACT The present study aimed to verify the acute effect of static stretching (SS) of the hamstrings muscles on the mioletric activation (EMGRMS) and strength performance of the antagonist muscle. Twelve men (20.28 ± 1.50 years, 83.35 ± 17.86 kg, 177.28 ± 9.64 cm) experienced in strength training were randomly divided into SS and control groups (GC). For the SS, three repetitions of 30s of static stretching were performed on the hamstrings and then the range of motion (ROM) was assessed. Subsequently, the strength performance and EMGRMS of the vastus lateralis (VL) and vastus medialis (MV) were assessed during the 10-RM test in the extensor chair. The twoway ANOVA found a significant difference in ROM for the main time effect (P = 0.019) and for group x time interaction (P = 0.023), with a significant increase in ROM after stretching (P = 0.013). The number of repetitions ater stretching increased significantly (P = 0.014; 16%) compared to the CG. There was no significant change in EMGRMS os the assessed muscles. The use of static stretching can improve the strength performance of the antagonist musculature.


Subject(s)
Humans , Male , Electromyography/methods , Muscle Strength , Muscle Stretching Exercises , Resistance Training , Knee
2.
Rev. cuba. invest. bioméd ; 39(2): e226, abr.-jun. 2020. tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-1126587

ABSTRACT

Introducción: este artículo presenta la predicción de tres tipos de movimientos básicos de la mano mediante un algoritmo inteligente para extraer características imprescindibles para el reconocimiento de patrones de movimiento a partir del análisis de señales electromiográficas superficiales adquiridas con el dispositivo Myo. Objetivo: reconocer y predecir patrones básicos de movimiento de la articulación del brazo utilizando electromiografía de superficie para aplicarlo sobre un prototipo de prótesis. Métodos: se tomaron datos de 13 estudiantes de 22 y 23 años de la Universidad Politécnica Salesiana, cada uno de los cuales ejecutó tres tipos de agarre: cilíndrico, pinza y pinza planar. Se trabajó con una frecuencia de 10 Hz y se tomaron 5 muestras por tipo de agarre durante 60 segundos. Para el análisis estadístico de los datos se utilizó la herramienta Anova, estableciendo un valor de significancia mayor a 0,65. Resultados: En ciertos voluntarios hay una mayor reacción en el electrodo 1 debido a que su antebrazo es mayor. El tiempo de respuesta para el reconocimiento varía dependiendo del número de variables que se tenga que comparar. Cuando se analiza un solo movimiento es de 2,6 segundos, en cambio, cuando se analizan los 3 movimientos el tiempo de respuesta incrementa a 7,8 segundos por la cantidad de electrodos que se quieran analizar. Conclusiones: la respuesta del sistema propuesto empieza a ser más lenta a medida que se analizan más movimientos a la vez y por tanto, es menos efectiva. El tiempo de ejecución y respuesta de nuestro sistema, en comparación al estado del arte, es más alto, debido a que se utilizan menos métodos de caracterización de la señal. Adicionalemtne, una limitante del proyecto es la frecuencia de muestreo del dispositivo Myo (200Hz)(AU)


Introduction: the paper presents the prediction of three basic hand movement types by means of a smart algorithm to draw characteristics indispensable for identification of movement patterns based on the analysis of surface electromyographic signals obtained with the Myo device. Objective: recognize and predict basic movement patterns of the arm joint using surface electromyography with a view to applying them over a prosthesis prototype. Methods: data were taken from 13 students aged 22 and 23 years from the Salesian Polytechnic University, each of whom performed three types of grasp: cylindrical, pincer and palmar pincer. A 10 Hz frequency was used and 5 samples were taken of each grasp type during 60 seconds. Statistical analysis was performed with the tool ANOVA, establishing a significance value > 0.65. Results: in certain volunteers a greater reaction was observed in electrode 1, due to their larger forearms. Response time for identification varies with the number of variables to be compared. When only one movement is analyzed, response time is 2.6 seconds, but when the three movements are examined it rises to 7.8 seconds by the number of electrodes intended to be studied. Conclusions: the response of the system proposed starts to slow down as more movements are analyzed simultaneously, which makes it less effective. The performance and response time of our system is higher than in state-of-the-art systems, since fewer signal characterization methods are used. On the other hand, a limitation of the project is the sampling frequency of the Myo device (200 Hz)(AU)


Subject(s)
Humans , Male , Young Adult , Prostheses and Implants/standards , Hand Strength/physiology , Electrodes/standards , Electromyography/methods , Hand/physiology
3.
Cuad. Hosp. Clín ; 60(2): 49-53, dic. 2019. ilus.
Article in Spanish | LILACS | ID: biblio-1046790

ABSTRACT

El registro electromiográfico es una forma de evaluación de los impulsos eléctricos aferentes y eferentes del sistema muscular al sistema nervioso, su valoración permite explorar lesiones nerviosas o patologías neuromusculares en unidades motoras o nerviosas específicas, en este caso, valoramos el plexo braquial y se desea comparar la actividad de este plexo entre los músculos del brazo con el pectoral mayor, ya que, este último puede servir como una opción de valoración del plexo braquial y además de fácil acceso. Este estudio se realizó comparando 4 pacientes de la unidad de neurofisiología de la Caja Nacional de Salud de la ciudad de La Paz, donde se comparó la actividad eléctrica de los músculos del brazo y el pectoral mayor. Los resultados obtenidos mostraron que el músculo pectoral mayor sería suficiente para valorar la actividad eléctrica en las lesiones del plexo braquial, hemos observado que, sirve para valorar lesiones, tanto del tronco superior e inferior del plexo braquial como una lesión total de este plexo, además, permite mejor acceso que los músculos del brazo en caso de accidentes con lesión de los miembros superiores.


Subject(s)
Humans , Adult , Middle Aged , Pectoralis Muscles , Arm Injuries , Brachial Plexus , Electromyography/methods
4.
Arq. neuropsiquiatr ; 77(8): 550-554, Aug. 2019. tab, graf
Article in English | LILACS | ID: biblio-1019466

ABSTRACT

ABSTRACT Quantitative electromyography is an important tool to evaluate myopathies, and some difficult-to-treat asthmatic patients may have a subclinical corticosteroid myopathic process, using only inhaled corticosteroid, according to some studies. In this report, diaphragm quantitative electromyography was used to evaluate asthmatic difficult-to-treat patients, comparing them with a control group. Significant differences were obtained in amplitude, duration and size index of motor unit action potentials, with lower parameters in the asthmatic patients, which may indicate a myopathic process.


RESUMO Eletromiografia quantitativa é uma ferramenta importante para a avaliação de miopatias, e alguns pacientes asmáticos de difícil controle podem ter um processo miopático subclínico, mesmo usando apenas corticosteroides inalatórios, de acordo com alguns artigos. Nesse artigo a eletromiografia quantitativa do diafragma foi usada para avaliar os pacientes asmáticos de difícil controle, comparando com um grupo controle. Diferenças significativas nas amplitudes, durações e índices de tamanho dos potenciais de unidades motoras foram encontradas, com parâmetros mais baixos nos pacientes asmáticos, o que pode indicar um processo miopático.


Subject(s)
Humans , Male , Female , Adult , Aged , Young Adult , Asthma/physiopathology , Diaphragm/physiopathology , Electromyography/methods , Reference Values , Asthma/drug therapy , Time Factors , Action Potentials/physiology , Case-Control Studies , Treatment Outcome , Adrenal Cortex Hormones/therapeutic use , Statistics, Nonparametric
5.
Arq. neuropsiquiatr ; 77(1): 33-38, Jan. 2019. tab, graf
Article in English | LILACS | ID: biblio-983871

ABSTRACT

ABSTRACT Objective: To determine the sensitivity and specificity of peripheral and respiratory muscle strength tests in diagnosing critical illness polyneuromyopathy (CIPNM), compared with an electrophysiological examination. Methods: Fifty septic patients who required mechanical ventilation for at least five days, and without a previous history of muscle weakness, were included. Peripheral muscle strength was assessed using the Medical Research Council (MRC) score, handgrip strength by dynamometry, and respiratory muscle strength with maximum respiratory pressures. Diagnosis of CIPNM was either confirmed or rejected by an electrophysiological examination. Receiver operating characteristic curve analysis was performed to determine the cut-off values with the best sensitivity (SN) and specificity (SP) of the studied variables in the presence or absence of CIPNM. Results: Patients with CIPNM were older, more critical (APACHE IV/SAPS 3), had a longer hospitalization, required mechanical ventilation for longer, and had a higher rate of intensive care unit readmission. Cutoff values identified CIPNM patients using MRC scores, dynamometry according to sex, maximal expiratory and inspiratory pressures, as well as being confirmed by the electrophysiological examination, with good sensitivity and specificity: < 40 (SN: 0.893; SP: 0.955); < 7 kg (SN: 1; SP: 0.909) for men, < 4 kg (SN: 0.882; SP: 1) for women; < 34 cmH2O (SN: 0.808; SP: 0.909) and > −40 cmH2O (SN: 0.846; SP: 0.909), respectively. Conclusion: The MRC score, dynamometry or maximum respiratory pressures can be used to identify patients with CIPNM at the intensive care bedside assessment. The healthcare professional can choose any of the methods studied to evaluate the patient, based on his experience and the resource available.


RESUMO Objetivo: Determinar a sensibilidade (SN) e especificidade (SP) dos testes de força muscular periférica e respiratória no diagnóstico da Polineuromiopatia do Doente Crítico (PNDC) em comparação com o estudo eletrofisiológico. Métodos: Foram incluídos 50 pacientes sépticos, em ventilação mecânica (VM) durante pelo menos cinco dias e sem história prévia de fraqueza muscular. A força muscular foi avaliada utilizando o escore Medical Research Council (MRC), a força de preensão palmar e as pressões respiratórias máximas. O diagnóstico de PNDC foi confirmado ou excluído pelo estudo eletrofisiológico. A análise da curva ROC foi realizada para determinar os valores de corte com a melhor SN e SP. Resultados: Os pacientes com PNDC eram mais velhos, mais graves, tiveram hospitalização mais longa, necessitaram de VM por mais tempo e apresentaram maior taxa de readmissão na Unidade de Terapia Intensiva. Os valores de corte identificaram os pacientes com PNDC usando o MRC, a dinamometria de acordo com o sexo, as pressões expiratórias e inspiratórias máximas, também confirmado pelo estudo eletrofisiológico, com boa sensibilidade e especificidade: < 40 (SN: 0.893; SP: 0.955), < 7 kg (SN: 1; SP: 0,909) para homens, < 4 kg (SN: 0,882; SP: 1) para mulheres, <34 cmH2O (SN: 0,808; SP: 0,909) e > −40 cmH2O (SN: 0,846; SP: 0,909), respectivamente. Conclusão: Tanto o MRC, a dinamometria quanto as pressões respiratórias máximas podem ser usadas para identificar pacientes com PNDC na avaliação à beira do leito, podendo o profissional de saúde escolher qualquer um dos métodos baseado em sua experiência e no recurso disponível.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Polyneuropathies/diagnosis , Polyneuropathies/physiopathology , Critical Illness , Sepsis/physiopathology , Reference Values , Respiratory Muscles/physiopathology , Prospective Studies , Reproducibility of Results , Sensitivity and Specificity , Statistics, Nonparametric , APACHE , Electromyography/methods , Muscle Strength/physiology , Muscle Strength Dynamometer , Point-of-Care Testing , Maximal Respiratory Pressures , Intensive Care Units
6.
Rev. bras. med. esporte ; 24(6): 455-459, Nov.-Dec. 2018. tab, graf
Article in English | LILACS | ID: biblio-977851

ABSTRACT

INTRODUCTION: Scoliosis is a three-dimensional deformity of the spine, characterized by a lateral shift that affects body posture. The Pilates Method (PM) promotes alterations in the biomechanics and neuromuscular activation pattern. OBJECTIVE: The aim of this study was to analyze electromyography (EMG) and symmetrography (SMTG) technologies applied in the evaluation of neuromuscular and postural effects on right convex thoracolumbar scoliosis (RCTS) after applying a PM therapeutic protocol. METHODS: This is an exploratory study of 5 male and female adolescents, with an average age of 14.4 years. The subjects underwent postural asymmetry assessments through SMTG and neuromuscular assessment through surface EMG of the trapezius (TRAP), erector spinae (ERE), oblique (OBLI) and rectus abdominis (RA) muscles. The electromyographic signals were processed in the temporal (EMGAmp) and spectral (EMGFmed) domains. The therapeutic protocol consisted of 24 sessions of Pilates floor exercises held twice a week with a duration of 45 minutes. RESULTS: There was an improvement in scoliosis and asymmetric shoulders in one subject (20%) and in three other subjects with hip asymmetry. There was an improvement in one subject (33.33%), as demonstrated by SMTG. EMGAmp measurements demonstrated a significant difference between before and after (p≈0) and among the muscles (p≈0). EMGFmed measurements demonstrated that there was only a difference between before and after (p≈0). It was verified that the most noteworthy muscles in terms of EMGAmp were TRAP and ERE, emphasizing the existence of an increase in the mean EMGAmp for ERE. Muscle behavior for measurements in EMGFmed demonstrated a higher mean increase for RA and OBLI muscles. CONCLUSION: It is concluded that the EMG and SMTG technologies are important tests for monitoring the progress of scoliosis and in treatment decisions. Level of Evidence III; Diagnostic Studies - Investigating diagnostic tests.


INTRODUÇÃO: A escoliose é uma deformidade tridimensional da coluna vertebral, caracterizada por um desvio lateral que afeta a postura corporal. O método Pilates (MP) promove alterações na biomecânica e no padrão de ativação neuromuscular. OBJETIVO: O objetivo deste estudo foi analisar a eletromiografia (EMG) e a simetrografia (SMTG) aplicadas na avaliação dos efeitos neuromusculares e posturais sobre a escoliose toracolombar destro-convexa (ETLDC), após aplicação de um protocolo terapêutico do MP. MÉTODOS: Trata-se de um estudo exploratório com cinco adolescentes de ambos os sexos, com média de idade de 14,4 anos. Os pesquisados foram submetidos a avaliações de assimetria postural por meio da SMTG e avaliação neuromuscular por meio da EMG de superfície dos músculos trapézio (TRAP), eretores da espinha (ERE), oblíquos (OBLI) e reto do abdome (RA). Os sinais eletromiográficos foram processados nos domínios temporal (EMGAmp) e espectral (EMGFmed). O protocolo terapêutico foi constituído por 24 sessões do MP de solo, aplicado duas vezes por semana, com duração de 45 minutos. RESULTADOS: Houve melhora da escoliose e dos ombros assimétricos em um indivíduo (20%) e em três outros com assimetria de quadril; houve melhora em um indivíduo, (33,33%), de acordo com a SMTG. As medidas da EMGAmp demonstraram diferença significativa entre antes e depois (p≈0) e entre os músculos (p≈0). As medidas da EMGFmed demonstraram que houve diferença apenas entre antes e depois (p≈0). Verificou-se que os músculos de maior destaque para EMGAmp foram TRAP e ERE, ressaltando que houve um aumento na média de EMGAmp para ERE. O comportamento da musculatura para as medidas em EMGFmed demonstrou aumento médio superior para os músculos RA e OBLI. CONCLUSÃO: Conclui-se que as tecnologias da EMG e a SMTG são importantes exames no acompanhamento do quadro evolutivo da escoliose e nas decisões de tratamento. Nível de Evidência III; Estudos Diagnósticos - Investigação de testes diagnósticos.


INTRODUCCIÓN: La escoliosis es una deformidad tridimensional de la columna vertebral, caracterizada por un desvío lateral que afecta la postura corporal. El método Pilates (MP) promueve alteraciones en la biomecánica y en el patrón de activación neuromuscular. OBJETIVO: El objetivo de este estudio fue analizar la electromiografía (EMG) y la simetrografía (SMTG) aplicadas en la evaluación de los efectos neuromusculares y posturales sobre la escoliosis toracolumbar dextroconvexa (ETLDC) después de aplicación de un protocolo terapéutico del MP. MÉTODOS: Se trata de un estudio exploratorio con cinco adolescentes de ambos sexos con edad promedio de 14,4 años. Los encuestados fueron sometidos a evaluaciones de asimetría postural por medio de la SMTG y evaluación neuromuscular por medio de la EMG de superficie de los músculos trapecio (TRAP), erectores espinales (ERE), oblicuos (OBLI) y recto abdominal (RA). Las señales electromiográficas fueron procesadas en los dominios temporal (EMGAmp) y espectral (EMGFmed). El protocolo terapéutico fue constituido por 24 sesiones de MP de suelo, aplicado dos veces por semana, con duración de 45 minutos. RESULTADOS: Hubo mejora de la escoliosis y de los hombros asimétricos en un individuo (20%) y en tres otros con asimetría de cadera; hubo mejora en un individuo, (33,33%), de acuerdo con la SMTG. Las medidas de la EMGAmp demostraron diferencia significativa entre antes y después (p≈0) y entre los músculos (p≈0). Las medidas de la EMGFmed demostraron que hubo diferencia sólo entre antes y después (p≈0). Se verificó que los músculos de mayor destaque para EMGAmp fueron TRAP y ERE, resaltando que hubo un aumento en el promedio de EMGAmp para ERE. El comportamiento de la musculatura para las medidas en EMGFmed demostró un aumento promedio superior para los músculos RA y OBLI. CONCLUSIÓN: Se concluye que las tecnologías de la EMG y la SMTG son importantes exámenes en el acompañamiento del cuadro evolutivo de la escoliosis y en las decisiones die tratamiento. Nivel de evidencia III, Estudios Diagnósticos - Investigación de Exámenes Diagnósticos.


Subject(s)
Humans , Male , Female , Adolescent , Scoliosis/rehabilitation , Scoliosis/therapy , Exercise Movement Techniques/methods , Electromyography/methods , Posture , Treatment Outcome
7.
Acta cir. bras ; 33(8): 652-663, Aug. 2018. graf
Article in English | LILACS | ID: biblio-949377

ABSTRACT

Abstract Purpose: To evaluate histopathological and ultrastructural changes and expression of proteins related to apoptosis CASPASE 3 and XIAP after experimental induction of temporary focal cerebral ischemia (90 minutes) due to obstruction of the middle cerebral artery in alcoholism model. Methods: Forty adult Wistar rats were used, subdivided into 5 experimental groups: control group (C); Sham group (S); Ischemic group (I); Alcoholic group (A); and Ischemic and Alcoholized group (I+A): animals submitted to the same treatment of group A and after four weeks were submitted to focal cerebral ischemia during 90 minutes, followed by reperfusion of 48 hours. Were processed for histopathological analysis and immunohistochemistry (for the protein expression of CASPASE -3 and XIAP). Results: Greater histopathological changes were observed in the animals of groups I and I+A in the three areas analyzed. The neuronal loss was higher in the medial striatum region of the animals of groups I and I + A. The protein expression of CASPASE -3 was higher than that of XIAP in the groups I and I + A for both proteins. Conclusion: The expression of XIAP was slightly higher where the histopathological changes and expression of CASPASE -3 was less evident.


Subject(s)
Animals , Male , Ischemic Attack, Transient/pathology , Alcoholism/pathology , Inhibitor of Apoptosis Proteins/analysis , Caspase 3/analysis , Time Factors , Immunohistochemistry , Reperfusion Injury/metabolism , Reperfusion Injury/pathology , Random Allocation , Ischemic Attack, Transient/metabolism , Rats, Wistar , Apoptosis , Middle Cerebral Artery , Microscopy, Electron, Transmission , Alcoholism/metabolism , Edema , Electromyography/methods , Mitochondria/pathology
8.
Arq. neuropsiquiatr ; 76(3): 177-182, Mar. 2018. tab, graf
Article in English | LILACS | ID: biblio-888364

ABSTRACT

ABSTRACT Objective The aim of this study was to obtain data on phrenic neuroconduction and electromyography of the diaphragm muscle in difficult-to-treat asthmatic patients and compare the results to those obtained in controls. Methods The study consisted of 20 difficult-to-treat asthmatic patients compared with 27 controls. Spirometry, maximal inspiratory and expiratory pressure, chest X-ray, phrenic neuroconduction and diaphragm electromyography data were obtained. Results The phrenic compound motor action potential area was reduced, compared with controls, and all the patients had normal diaphragm electromyography. Conclusion It is possible that a reduced phrenic compound motor action potential area, without electromyography abnormalities, could be related to diaphragm muscle fiber abnormalities due to overload activity.


RESUMO Objetivo O objetivo do presente estudo foi obter dados da neurocondução do frênico e exame com agulha do diafragma em pacientes com asma de difícil controlee comparar com um grupo normal. Métodos O estudo consiste em realizar radiografia de tórax, espirometria, pressão máxima inspiratória e expiratória, neurocondução do nervo frênico e eletromiografia do músculo diafragma em 20 pacientes asmáticos de difícil controle e comparar com 27 controles. Resultados Encontramos redução da área do potencial de ação muscular composto do nervo frênico e a eletromiografia do musculo diafragma estava normal em todos os pacientes. Conclusão É possível que a redução da área do potencial de ação muscular composto do nervo frênico nos pacientes com asma de difícil controle associado a eletromiografia normal do músculo diafragma esteja relacionada as alterações da fibra muscular do mesmo devido à sobrecarga de atividade.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Young Adult , Phrenic Nerve/physiopathology , Asthma/physiopathology , Neural Conduction/physiology , Phrenic Nerve/diagnostic imaging , Reference Values , Respiratory Function Tests/methods , Asthma/diagnostic imaging , Action Potentials/physiology , Diaphragm/physiopathology , Radiography, Thoracic , Case-Control Studies , Age Factors , Statistics, Nonparametric , Pulmonary Disease, Chronic Obstructive/physiopathology , Electromyography/methods
9.
Arq. neuropsiquiatr ; 76(3): 200-208, Mar. 2018. tab, graf
Article in English | LILACS | ID: biblio-888361

ABSTRACT

ABSTRACT The aim of this study was to describe the results of a Brazilian Consensus on Small Fiber Neuropathy (SFN). Fifteen neurologists (members of the Brazilian Academy of Neurology) reviewed a preliminary draft. Eleven panelists got together in the city of Fortaleza to discuss and finish the text for the manuscript submission. Small fiber neuropathy can be defined as a subtype of neuropathy characterized by selective involvement of unmyelinated or thinly myelinated sensory fibers. Its clinical picture includes both negative and positive manifestations: sensory (pain/dysesthesias/pruritus) or combined sensory and autonomic complaints, associated with an almost entirely normal neurological examination. Standard electromyography is normal. A growing list of medical conditions is associated with SFN. The classification of SFN may also serve as a useful terminology to uncover minor discrepancies in the normal values from different neurophysiology laboratories. Several techniques may disclose sensory and/or autonomic impairment. Further studies are necessary to refine these techniques and develop specific therapies.


RESUMO O objetivo deste estudo é descrever os resultados de um Consenso Brasileiro sobre Neuropatia de Fibras Finas (NFF). Quinze neurologistas (membros da Academia Brasileira de Neurologia) revisaram uma versão preliminar do artigo. Onze panelistas se reuniram na cidade de Fortaleza para discutir e terminar o texto para a submissão do manuscrito. NFF pode ser definida como um subtipo de neuropatia caracterizada pelo envolvimento seletivo de fibras sensitivas amielínicas ou pouco mielinizadas. Seu quadro clínico inclui manifestações negativas e positivas: sensitivas (dor/disestesias/prurido) ou queixas sensitivas e autonômicas combinadas, associadas a exame neurológico quase totalmente normal. A eletromiografia convencional é normal. Uma lista crescente de condições médicas causa NFF. NFF também pode servir como uma terminologia útil para referenciar pequenas discrepâncias nos valores normais de diferentes laboratórios de neurofisiologia. Diferentes técnicas podem evidenciar anormalidades sensitivas e/ou autonômicas. São necessários mais estudos para refiná-las e para o desenvolvimento de terapias específicas.


Subject(s)
Humans , Small Fiber Neuropathy/diagnosis , Small Fiber Neuropathy/pathology , Skin/pathology , Biopsy , Brazil , Autonomic Pathways/pathology , Nerve Fibers, Unmyelinated/pathology , Electromyography/methods , Small Fiber Neuropathy/etiology , Small Fiber Neuropathy/physiopathology
10.
Arq. neuropsiquiatr ; 76(2): 124-126, Feb. 2018.
Article in English | LILACS | ID: biblio-888354

ABSTRACT

ABSTRACT This historical review describes the contribution of Drs. Lee M. Eaton and Edward H. Lambert to the diagnosis of myasthenic syndrome on the 60th anniversary of their pioneering article (JAMA 1957) on the disease. There are important landmarks in their article on a disorder of the neuromuscular junction associated with thoracic neoplasm and the electrophysiological criteria for Lambert-Eaton myasthenic syndrome (LEMS). After 60 years, the main electrophysiological criteria described in Eaton and Lambert's pioneering article are still currently useful in the diagnosis of LEMS.


RESUMO Essa revisão histórica enfatiza a contribuição do Dr Lee M Eaton e do Dr Edward H. Lambert para o diagnóstico da síndrome miastênica no 60o aniversário do seu artigo pioneiro (JAMA 1957) para essa doença. Existem importantes marcos no artigo de Eaton e Lambert, como uma desordem da junção neuromuscular associada à neoplasia torácica e critério diagnóstico para síndrome miastênica de Lambert-Eaton (LEMS). Após 60 anos, os principais critérios diagnósticos descritos para LEMS no artigo pioneiro de Eaton e Lambert continuam úteis no diagnóstico da LEMS.


Subject(s)
Humans , History, 20th Century , History, 21st Century , Lambert-Eaton Myasthenic Syndrome/history , Electromyography/history , Periodicals as Topic , Lambert-Eaton Myasthenic Syndrome/diagnosis , Lambert-Eaton Myasthenic Syndrome/physiopathology , Electromyography/methods , Electrophysiological Phenomena
11.
J. appl. oral sci ; 26: e20170214, 2018. tab, graf
Article in English | LILACS, BBO | ID: biblio-893727

ABSTRACT

Abstract Objective: To assess the immediate effects of temporary bite-raising using light-cured orthodontic band cement on the superficial masseter and anterior temporalis electromyography (EMG) activity in healthy adults. Materials and Methods: Surface EMG signals were recorded bilaterally from the superficial masseter and anterior temporalis muscles of 30 volunteers with a normal occlusion, before and after having temporary bite-raising. The bite-raising was done by adding light-cured orthodontic band cement (3x5x2 mm WxLxH) on the lingual cusps of both upper first molars. The measurements were recorded (i) at rest, (ii) while clenching in centric occluding position and (iii) while chewing on an artificial test food. The EMG activity at rest and during clenching, the maximum voltage, and the duration of the identified EMG signal burst while chewing the artificial test food before and after temporary bite-raising were statistically compared using the paired t-test or the Wilcoxon signed-rank test based on the normality of the variables. The significance level was set at 5%. Results: After temporary bite-raising, we found no significant change in integral EMG activity at rest position for the superficial masseter (mean difference (MD)=7.5 μVs) and for the anterior temporalis muscle (MD=36.8 μVs); however, the integral EMG activity during clenching was significantly reduced for the superficial masseter (MD=201.2 μVs) and for the anterior temporalis muscle (MD=151.8 μVs). During mastication, the maximum voltage of the identified burst was significantly reduced on the preferred chewing side of the superficial masseter and anterior temporalis muscles (MD=127.9 and 47.7 μV, respectively), while no significant change was found for the duration of the identified burst (MD=-34.1 and 3.4 ms, respectively) after temporary bite-raising. Conclusion: The results point to an altered neuromuscular behavior during clenching and chewing immediately after temporary bite-raising with light-cured orthodontic band cement. This information is relevant for orthodontists to inform their patients what will happen to their masticatory muscle activity when this bite-raising method is used.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Young Adult , Temporal Muscle/physiology , Bite Force , Resin Cements/chemistry , Light-Curing of Dental Adhesives/methods , Masseter Muscle/physiology , Reference Values , Time Factors , Reproducibility of Results , Treatment Outcome , Orthodontic Brackets , Statistics, Nonparametric , Electromyography/methods , Mastication/physiology
12.
CoDAS ; 30(6): e20180031, 2018. tab, graf
Article in English | LILACS | ID: biblio-984232

ABSTRACT

ABSTRACT Purpose To review systematically the literature and to analyze the effectiveness of surface electromyographic biofeedback in the rehabilitation of adults with behavioral dysphonia. Research strategies Two authors performed an independent search in the following databases: Clinical Trials, Cochrane Library, Embase, LILACS, PubMed, and Web of Science. A specific search strategy was developed for each database. Selection criteria The review included studies that examined the effectiveness of surface electromyographic biofeedback compared to other direct vocal therapy intervention in adults with behavioral dysphonia. There were no restrictions in regard to language or date of publication. Data analysis Analysis of the risk of bias, heterogeneity, quantitative and qualitative data, sensitivity, subgroups, and publication bias. Results 51 studies were identified, but only two cohort studies remained as prospects for analysis. The studies showed 100% uncertain risk of selection, performance, and detection bias. There was a high degree of clinical heterogeneity. The descriptive analysis showed a reduction in muscle electrical activity and improvement in vocal self-assessment using electromyographic biofeedback; however, it was not possible to calculate the effect size of the interventions. The present study was limited by the fact that it was unable to show a consensus for the majority of data analyzed. Conclusion The available literature does not support a conclusive finding about the effectiveness of surface electromyographic biofeedback compared to other direct interventions used in the rehabilitation of adults with behavioral dysphonia. The studies analyzed vary widely in their clinical procedures and methodology, making it impossible to determine the procedure's effectiveness.


RESUMO Objetivo Revisar sistematicamente a literatura e analisar a efetividade do biofeedback eletromiográfico de superfície na reabilitação de adultos com disfonia comportamental. Estratégia de pesquisa Dois autores realizaram uma busca independente nas bases de dados: Clinical Trials , Cochrane Library, Embase, LILACS, PUBMED e Web of Science. Elaborou-se uma estratégia de busca específica para cada base. Critérios de seleção Foram incluídos estudos que analisaram a efetividade do biofeedback eletromiográfico de superfície comparado com outras intervenções de terapia vocal direta em adultos com disfonia comportamental. Não houve restrição de idioma e data de publicação. Análise de dados Análise do risco de viés, heterogeneidade, dados quantitativos e qualitativos, sensibilidade, subgrupos e viés de publicação. Resultados foram identificados 51 estudos, sendo que apenas dois estudos coorte prospectivos foram analisados. Os estudos apresentaram 100% de risco incerto de viés de seleção, performance e detecção. Houve alta heterogeneidade clínica. A análise descritiva mostrou redução da atividade elétrica muscular e melhora da autoavaliação vocal com o uso do biofeedback eletromiográfico, porém, não foi possível calcular o tamanho do efeito das intervenções. O presente estudo apresentou limitações por não conseguir apresentar um consenso para a maioria dos dados analisados. Conclusão A literatura disponível não permite gerar uma evidência conclusiva acerca da efetividade do biofeedback eletromiográfico comparado a outras intervenções diretas na reabilitação de sujeitos adultos com disfonia comportamental.


Subject(s)
Humans , Adult , Voice Training , Electromyography/methods , Dysphonia/rehabilitation , Neurofeedback/methods , Speech Therapy/methods , Treatment Outcome , Dysphonia/physiopathology , Habits
13.
Rev. bras. ter. intensiva ; 29(2): 213-221, abr.-jun. 2017. tab, graf
Article in Portuguese | LILACS | ID: biblio-899502

ABSTRACT

RESUMO Objetivo: Avaliar a viabilidade do uso de índices derivados do sinal de eletromiografia de superfície para predizer desfechos do processo de desmame em pacientes mecanicamente ventilados após cirurgia cardíaca. Métodos: Foram incluídos dez pacientes em pós-operatório de cirurgia cardiovascular que não cumpriram os critérios para extubação precoce. Os sinais da eletromiografia de superfície foram registrados, assim como as variáveis ventilatórias durante o processo de desmame, sendo o momento do procedimento determinado pela equipe médica, segundo sua experiência. Avaliaram-se diversos índices da atividade dos músculos respiratórios obtidos a partir da eletromiografia de superfície com uso de técnicas de processamento lineares e não lineares. Compararam-se dois grupos: pacientes com e sem sucesso no desmame. Resultados: Os índices obtidos permitiram estimar a atividade diafragmática de cada paciente, demonstrando uma correlação entre atividade elevada e falha do teste de desmame. Conclusão: A eletromiografia de superfície está se tornando um procedimento promissor para avaliar as condições de pacientes ventilados mecanicamente, mesmo em condições complexas, como as que envolvem aqueles após cirurgia cardiovascular.


ABSTRACT Objective: The aim of this pilot study was to evaluate the feasibility of surface electromyographic signal derived indexes for the prediction of weaning outcomes among mechanically ventilated subjects after cardiac surgery. Methods: A sample of 10 postsurgical adult subjects who received cardiovascular surgery that did not meet the criteria for early extubation were included. Surface electromyographic signals from diaphragm and ventilatory variables were recorded during the weaning process, with the moment determined by the medical staff according to their expertise. Several indexes of respiratory muscle expenditure from surface electromyography using linear and non-linear processing techniques were evaluated. Two groups were compared: successfully and unsuccessfully weaned patients. Results: The obtained indexes allow estimation of the diaphragm activity of each subject, showing a correlation between high expenditure and weaning test failure. Conclusion: Surface electromyography is becoming a promising procedure for assessing the state of mechanically ventilated patients, even in complex situations such as those that involve a patient after cardiovascular surgery.


Subject(s)
Humans , Male , Adult , Aged , Respiration, Artificial/methods , Ventilator Weaning/methods , Electromyography/methods , Cardiac Surgical Procedures , Diaphragm/physiology , Pilot Projects , Feasibility Studies , Airway Extubation , Middle Aged
14.
Rev. bras. ter. intensiva ; 29(2): 253-258, abr.-jun. 2017. tab, graf
Article in Portuguese | LILACS | ID: biblio-899506

ABSTRACT

RESUMO Este estudo teve como objetivo explorar a utilidade da avaliação da atividade muscular respiratória em pacientes em uso de ventilação mecânica após envenenamento agudo por organofosforados, para fornecer informações complementares para determinação do melhor momento para suspensão do suporte ventilatório. Foi registrada eletromiografia de superfície em músculos respiratórios (diafragma, intercostais externos e esternocleidomastóideos) em um homem jovem afetado por autoenvenenamento com quantidade desconhecida de paration, para determinar o nível de atividade muscular no decurso de diversas tentativas de desmame da ventilação mecânica. A distribuição de energia de cada frequência de sinal de eletromiografia de superfície; a sincronização entre máquina, paciente e músculos; a atividade da enzima acetilcolinesterase; o trabalho respiratório e os índices de respiração rápida e superficial foram calculados em cada uma das tentativas de desmame. O trabalho respiratório e o índice de respiração rápida e superficial não se correlacionaram com a falha ou o sucesso da tentativa de desmame. O diafragma aumentou gradualmente seu envolvimento com a ventilação, tendo alcançado resposta máxima, que se correlacionou com o sucesso do desmame e a atividade máxima da enzima acetilcolinesterase. Por outro lado, a atividade de músculos respiratórios acessórios mostrou tendência oposta.


ABSTRACT This study aimed to explore the usefulness of measuring respiratory muscle activity in mechanically ventilated patients suffering from acute organophosphate poisoning, with a view towards providing complementary information to determine the best time to suspend ventilatory support. Surface electromyography in respiratory muscles (diaphragm, external intercostal and sternocleidomastoid muscles) was recorded in a young man affected by self-poisoning with an unknown amount of parathion to determine the muscle activity level during several weaning attempts from mechanical ventilation. The energy distribution of each surface electromyography signal frequency, the synchronization between machine and patient and between muscles, acetylcholinesterase enzyme activity, and work of breathing and rapid shallow breathing indices were calculated in each weaning attempt. The work of breathing and rapid shallow breathing indices were not correlated with the failure/success of the weaning attempt. The diaphragm gradually increased its engagement with ventilation, achieving a maximal response that correlated with successful weaning and maximal acetylcholinesterase enzyme activity; in contrast, the activity of accessory respiratory muscles showed an opposite trend.


Subject(s)
Humans , Male , Adult , Respiration, Artificial/methods , Ventilator Weaning , Electromyography/methods , Organophosphate Poisoning/therapy , Acetylcholinesterase/metabolism , Respiration , Respiratory Muscles/physiology
15.
Clinics ; 72(5): 276-283, May 2017. tab
Article in English | LILACS | ID: biblio-840080

ABSTRACT

OBJECTIVES: To characterize the oral motor system of adults with facial injuries and to compare the oral motor performance/function between two different groups. METHODS: An observational, descriptive, cross-sectional study was conducted in 38 patients presenting with facial trauma who were assigned to the Division of Orofacial Myology of a Brazilian School Hospital. Patients were divided into two groups: Group 1 (G1) consisted of 19 patients who were submitted to open reduction of at least one facial fracture, and Group 2 (G2) consisted of 19 individuals who were submitted to closed fracture reduction with maxillomandibular fixation. For comparison purposes, a group of 19 healthy volunteers was recruited. All participants underwent a clinical assessment that included an oral motor evaluation, assessment of the mandibular range of motions, and electromyographic assessment of the masticatory muscles. RESULTS: Clinical assessment of the oral motor organs indicated that G1 and G2 presented deficits related to the posture, position, and mobility of the oral motor organs. Patients also presented limited mandibular ranges of movement. Deficits were greater for individuals in G1, especially for maximal incisor opening. Additionally, patients in G1 and G2 presented a similar electromyographic profile of the masticatory muscles (i.e., patients with facial fractures presented lower overall muscle activity and significant asymmetrical activity of the masseter muscle during maximum voluntary teeth clenching). CONCLUSION: Patients in G1 and G2 presented similar functional deficits after fracture treatment. The severity of facial fractures did not influence muscle function/performance 4 months after the correction of fractures.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Young Adult , Fractures, Bone/physiopathology , Maxillofacial Injuries/physiopathology , Motor Activity/physiology , Mouth/physiopathology , Case-Control Studies , Cross-Sectional Studies , Electromyography/methods , Face/physiopathology , Fracture Fixation/rehabilitation , Fractures, Bone/rehabilitation , Masseter Muscle/physiopathology , Maxillofacial Injuries/rehabilitation , Posture/physiology , Reference Values , Severity of Illness Index , Statistics, Nonparametric , Temporal Muscle/physiopathology , Time Factors
16.
Motriz (Online) ; 23(1): 40-46, Jan.-Mar. 2017. tab, graf, ilus
Article in English | LILACS | ID: biblio-841821

ABSTRACT

Abstract Gait analysis may offer information to choose the best exercise-based clinical intervention for the children with clubfoot. However, other motor abilities are not commonly investigated. The aim of this research was to analyze the biomechanics of countermovement vertical jumping in clubfooted children who had undergone surgery. Fourteen children with idiopathic clubfoot were selected and the control group consisted of 11 children. Clubfooted children showed less dorsiflexion in the jump preparation phase. In the impulse phase, this group showed more knee flexion and less plantarflexion associated with less magnitude of vertical reaction force and less muscular activity in the gastrocnemius medialis. In the landing phase, for clubfoot group, we found high loading rate for the first peak of vertical force, less plantarflexion and more knee flexion. Understanding the biomechanical changes of vertical jump landing should assist in better targeting of physical and sporting activities of this population.(AU)


Subject(s)
Humans , Male , Female , Child , Biomechanical Phenomena/physiology , Clubfoot , Electromyography/methods , Gait/physiology
17.
Coluna/Columna ; 16(1): 29-32, Jan.-Mar. 2017. tab
Article in English | LILACS | ID: biblio-840149

ABSTRACT

ABSTRACT Objective: The objective of this study is to relate the use of intraoperative electromyography with surgical time, proper placement of screws, type of curve and time spent per screw in idiopathic scoliosis correction surgery in a group of surgeons from Belo Horizonte. This study used the database of protocol evaluation of patients operated in the service, and separately analyzed the results of motor and somatosensory potentials. Methods: Retrospective study of 80 patients undergoing surgery for correction of idiopathic scoliosis between December 2008 and January 2015. A single group of Belo Horizonte spine surgeons performed the intraoperative electromyographic (EMG) monitoring. EMG was performed with stimulation of pedicle screws in patients undergoing instrumentation with pedicle screws as fixation elements. Results: The sample consisted of 85% females (mean age 17 years) and 37.5% of cases had classification type 1AN of Lenke. Of the total surgical cases, 60% had EMG changes. Of the total cases analyzed, 66.3% were true positives for the result. Conclusion: Intraoperative monitoring with EMG is a very important tool for the surgical treatment of patients with scoliosis undergoing instrumentation with pedicle screws. It enables to check if the screw is located on the correct path, helping to decrease the error rate and providing corrections to the surgical approach through a change of strategies. Moreover, it contributes to decrease the time to screw positioning and the total surgical time.


RESUMO Objetivo: O objetivo deste estudo é relacionar a utilização da eletromiografia intraoperatória com tempo cirúrgico, posicionamento dos parafusos, tipo de curva e tempo por parafuso em cirurgias de correção de escoliose idiopática, em um grupo de cirurgiões de Belo Horizonte. Este trabalho utilizou o banco de dados de avaliação do protocolo de pacientes operados no serviço, e analisou separadamente os resultados do potencial motor e somatossensorial. Métodos: Estudo retrospectivo de 80 pacientes submetidos a tratamento cirúrgico para correção de escoliose idiopática no período de dezembro de 2008 e janeiro de 2015. Foi realizada a monitorização eletromiográfica (EMG) intraoperatória por um único grupo de cirurgiões de coluna de Belo Horizonte. Foi realizada EMG com estimulação dos parafusos pediculares nos pacientes submetidos à instrumentação com parafusos pediculares como elementos de fixação. Resultados: A amostra foi constituída por 85% sendo indivíduos do sexo feminino (média de idade de 17 anos) e 37,5% dos casos tinham classificação do tipo 1AN de Lenke. Do total de casos cirúrgicos, 60% apresentaram alteração EMG. Do casos analisados, 66,3% eram verdadeiros positivos para o resultado. Conclusão: A monitorização intraoperatória com EMG é uma ferramenta importante para o tratamento cirúrgico de pacientes com escoliose submetidos à instrumentação com parafusos pediculares. É possível verificar se o parafuso está localizado no trajeto correto, contribuindo para diminuição do índice de erros e propiciando correções da abordagem cirúrgica, com a mudança de estratégias. Além disso, contribui diretamente para a redução de tempo de posicionamento do parafuso e do tempo cirúrgico total.


RESUMEN Objetivo: El objetivo de este estudio es relacionar el uso de la electromiografía intraoperatoria con el tiempo quirúrgico, la colocación de los tornillos, el tipo de curva y el tiempo por tornillo en la cirugía de corrección de la escoliosis idiopática en un grupo de cirujanos de Belo Horizonte. Este trabajo utilizó la base de datos de evaluación de protocolos de los pacientes operados en el servicio y analizó los resultados de los potenciales motor y somatosensorial por separado. Métodos: Estudio retrospectivo de 80 pacientes que se sometieron a tratamiento quirúrgico para la corrección de la escoliosis idiopática entre diciembre de 2008 y enero de 2015. Un solo grupo de cirujanos de columna de Belo Horizonte realizó la monitorización electromiográfica (EMG) intraoperatoria. Se realizó EMG con la estimulación de los tornillos pediculares en pacientes sometidos a la instrumentación con tornillos pediculares como elementos de fijación. Resultados: La muestra consistió en 85% de mujeres (edad media de 17 años) y el 37,5% de los casos tenía clasificación del tipo 1AN de Lenke. Del total de los casos quirúrgicos, el 60% tenía cambio EMG. De los casos analizados, el 66,3% fueron verdaderos positivos para el resultado. Conclusión: La monitorización intraoperatoria con EMG es una herramienta importante para el tratamiento quirúrgico de los pacientes con escoliosis sometidos a la instrumentación con tornillos pediculares. Esto permite comprobar si el tornillo se encuentra en la trayectoria correcta, lo que ayuda a disminuir la tasa de errores y favorece correcciones del abordaje quirúrgico, con el cambio de las estrategias. Por otra parte, contribuye directamente a la reducción del tiempo de posicionamiento del tornillo y del tiempo quirúrgico total.


Subject(s)
Humans , Female , Spine , Electromyography/methods , Pedicle Screws , Scoliosis/surgery
18.
Motriz (Online) ; 23(2): e101619, 2017. graf
Article in English | LILACS | ID: biblio-841836

ABSTRACT

Abstract Aims: Cross-training is the process whereby training of one limb gives rise to enhancements in the performance of the opposite, untrained limb and may be dependent on type of muscle contractions performed. The aim of this study was to investigate whether unilateral resistance training using eccentric contraction is more effective than concentric resistance training to improve time to task failure in the contralateral untrained limb. Methods:Subjects completed 12 weeks of resistance training consisting of 36 sessions, using unilateral leg exercise. Sustained isometric knee extension performed at 50% of maxmal force until task failure for the contralateral untrained leg. Surface electromyography (EMG) signals were simultaneously recorded from contralateral untrained quadriceps (vastusmedialis, rectus femoris, and vastuslateralis). Results: Time to task failure of the contralateraluntrained leg and associated EMG activitiessignificantly increased after 12 weeks ofunilateral resistance training(p<0.05). However, percent increase in time to task failure and EMG amplitude after eccentric resistance training was significantly higher than concentric resistance training (p<0.05). Conclusion: This study concluded that unilateral eccentric resistancetraining is superior to concentric resistance training to increase time to task failure in the contralateral untrained limb.(AU)


Subject(s)
Humans , Male , Adult , Exercise/physiology , Isometric Contraction/physiology , Muscle Strength/physiology , Quadriceps Muscle/physiology , Resistance Training , Electromyography/methods
19.
Motriz (Online) ; 23(4): e1017138, 2017.
Article in English | LILACS | ID: biblio-895016

ABSTRACT

In the last 20 years, there was a growing interest in the study of the theoretical and applied issues surrounding psychophysiological processes underlying performance. The psychophysiological monitoring, which enables the study of these processes, consists of the assessment of the activation and functioning level of the organism using a multidimensional approach. In sport, it can be used to attain a better understanding of the processes underlying athletic performance and to improve it. The most frequently used ecological techniques include electromyography (EMG), electrocardiography (ECG), electroencephalography (EEG), and the assessment of electrodermal activity and breathing rhythm. The purpose of this paper is to offer an overview of the use of these techniques in applied interventions in sport and physical exercise and to give athletes, coaches and sport psychology experts new insights for performance improvement.(AU)


Subject(s)
Humans , Athletic Performance/physiology , Electrocardiography/methods , Electroencephalography/methods , Electromyography/methods , Exercise/physiology , Sports/physiology
20.
Motriz (Online) ; 23(4): e101721, 2017. tab, ilus
Article in English | LILACS | ID: biblio-895021

ABSTRACT

AIMS: The aim of this study was to verify the influence of Pilates on muscle activation of lumbar multifidus (LM) and transversus abdominis/internal oblique muscles (TrA/IO) in individuals with nonspecific low back pain. METHODS: Twelve individuals of both sexes with non-specific low back pain were evaluated before and after a two-month Pilates program in relation to electromyographic activity of LM and TrA/IO, as well as clinical aspects such as pain, flexibility, muscular endurance, quality of life; and Fear-Avoidance Beliefs Questionnaire (in relation to physical and work-related activities. A statistical analysis was performed using a test for independent samples and significance was established at the level of 0.05. RESULTS: After eight weeks of Pilates training, there was an improvement in the clinical parameters of pain, flexibility, muscular endurance and disability. The individuals presented lower LM activation (p=0.025), higher trunk extension strength (p=0.005) and an increase in time from onset to peak muscle activation (p=0.02). CONCLUSION: Pilates protocol was effective for clinical improvement and motor behavior in patients with nonspecific low back pain and the parameters assessed showed a large effect size despite the small sample.(AU)


Subject(s)
Humans , Male , Female , Electromyography/methods , Exercise Movement Techniques/methods , Exercise Therapy/methods , Low Back Pain/therapy
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