108 resultados para Musculos
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Introdução – Uma das causas mais prováveis de lesões esportivas está relacionada aos desequilíbrios musculares e a fadiga muscular, que é evidenciada no decorrer de um jogo de futebol, principalmente no final do jogo. Esta pode ser avaliada através da comparação da força de contração máxima antes e após o exercício. A fadiga produzida durante o jogo diminui a força muscular concêntrica e excêntrica de flexores e extensores do joelho podendo aumentar a incidência de lesões. Objetivo - Avaliar o efeito de uma partida sobre o pico de torque funcional e convencional nos músculos isquiotibiais e quadríceps de jogadores de futebol de salão com e sem desequilíbrio muscular. Método – Oito jogadores de futebol de salão do gênero masculino, com idade entre 18 e 24 anos, fizeram três visitas ao laboratório: 1ª foram realizadas a antropometria e adaptação aos equipamentos; 2ª teste máximo no dinamômetro isocinético para determinar a razão do pico de torque funcional e convencional nos músculos isquiotibiais e quadríceps; 3ª idem ao 2ª, após a partida de futebol de salão. Análise estatística – através das médias ± DP dos dados obtidos foi utilizado o teste t para amostras dependentes e o Mann Whitney para comparação do pico de torque antes e após a partida de futebol de salão e para comparação da relação flexor/extensor pré e pós- esforço, respectivamente. Em ambos os testes foram adotado um nível de significância de p < 0,05. Resultados - Não foram encontradas diferenças significantes entre os grupos de atletas com desequilíbrio muscular na perna dominante (GD) e grupo equilíbrio (GE) e para os extensores e flexores do GD e GE nas condições Con60. Através do Mann Whitney foram encontradas diferenças...(Resumo completo, clicar acesso eletrônico abaixo)
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INTRODUÇÃO: A paralisia facial periférica (PFP) consiste no acometimento do sétimo nervo craniano, de forma aguda, podendo ser precedida por dor na região mastoidiana e resultando em paralisia completa ou parcial da mímica facial. É, na sua grande maioria, de causa idiopática ou apresenta diversas etiologias como diabetes mellitus, hipertensão arterial, herpes zoster, viroses, otites médias, infecções (lepra, sífilis, doença de Lyme), sarcoidose, traumatismo e tumores. Apesar da paralisia facial periférica ter sido descrita em 1821, por Sir Charles Bell, ainda hoje existe muita controvérsia a respeito da etiologia e tratamento. A incidência da PFP encontra-se entre 20 a 30 casos por 100 mil habitantes, com prevalência ligeiramente maior entre as mulheres. Baseado nessas premissas, este estudo teve por objetivo avaliar a evolução de pacientes com paralisia facial periférica submetidos a um protocolo de reabilitação. METODOLOGIA: No estudo foram incluídos 30 pacientes com diagnóstico de paralisia facial periférica idiopática, atendidos no Centro de Estudos e Reabilitação em Fisioterapia (CEAFIR), da FCT-UNESP, campus de Presidente Prudente. O presente estudo adotou como procedimento fisioterapêutico os protocolos I, II, III e IV. Antes de realizar qualquer técnica, abaixo mencionada, foi explicado ao paciente cada passo, para evitar surpreendê-lo. Conforme os pacientes apresentassem melhora e evoluções nas reavaliações elétricas, foram feitas recomendações de exercícios para mímica facial, em frente ao espelho. As repetições eram aumentadas gradativamente, posteriormente os mesmos exercícios, mas agora ativos resistidos. RESULTADOS: Os valores das variáveis reobase, cronaxia e acomodação, nos garantem que o protocolo usado permite avaliar a condução nervosa do facial, o grau de evolução da condução nervosa, bem como acompanhar... (Resumo completo, clicar acesso eletrônico abaixo)
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A natação é um esporte praticado em meio líquido o que a torna muito dependente da técnica do nadador, pelo fato de apresentar maior resistência quando comparado com o meio terrestre. A força muscular, composição corporal e a técnica do nado são alguns fatores determinantes para a melhora do desempenho esportivo do atleta. Sendo assim, a capacidade de gerar força propulsiva e minimizar a resistência ao meio líquido são altamente influenciadoras do desempenho nesta modalidade. Um dos principais músculos utilizados na propulsão da braçada do nado crawl é o tríceps braquial o qual é responsável pela extensão do cotovelo. O nível de força dos membros dominante e não dominante também pode influenciar no desequilíbrio muscular dos nadadores e consequentemente na propulsão do atleta. Sendo assim, o objetivo deste estudo foi analisar a reprodutibilidade de pico de torque (PT) durante as contrações isométrica e isocinética concêntrica em diferentes velocidades do músculo tríceps braquial nos membros dominante e não dominante em nadadores. Participaram do estudo nadadores velocistas e meio fundistas do gênero masculino, com idade entre 18 e 28 anos, com experiência no mínimo de 3 anos na modalidade. Os voluntários foram solicitados a comparecer no laboratório em 3 ocasiões em dias diferentes. Primeiramente para obter as medidas antropométricas (massa, estatura, envergadura e dobras cutâneas) e logo em seguida foi feita a familiarização ao teste isométrico e isocinético no dinamômetro. Nas próximas visitas os atletas realizaram no dinamômetro isocinético, o teste máximo para determinação do PT da contração isométrica e isocinéticas concêntricas em diferentes velocidades. O procedimento foi realizado duas vezes em dias diferentes. O teste para determinação do PT isométrico e isocinético foi realizado de forma aleatória... (Resumo completo, clicar acesso eletrônico abaixo)
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In the treatment plans in conventional Proton therapy are considered only the elastic interactions of protons with electrons and/or nuclei, it means, mainly ionization and coulomb excitation processes. As the energy needed to reach the deep tumors should be of several hundred of MeVs, certainly the nuclear inelastic channels are open. Only some previous studies of the contribution of these processes in the full dose have been made towards targets composed of water. In this study will be presented the results of the simulation of the processes of interaction of beams of protons in the range of 100-200 MeV of energy with a cylindrical phantom composed by striated muscle (ICRU), emphasizing in the contribution to total dose due to the deposition of energy by secondary particles alpha (α), deuterium (2H), tritium (3H), neutron (n) and hélio3 (3He), originated by nuclear inelastic processes. The simulations were performed by using the method of Monte Carlo, via the computer code MCNPX v2.50 (Monte Carlo N-Particle eXtended). The results will be shown demonstrated through the graphics of the deposited dose with or without nuclear interaction, the percentual of dose deposited by secondary particles, the radial dispersion of neutrons, as well as the multiplicity of secondary particles
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Não disponível
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Currently the company suffers a heavy influence of media, through their tentacles people are reached and clawed into a consumerist context, and the reason for the success of this market share is linked to aesthetics. An ideal beauty standard is followed, aimed at recognizing social, emotional success, professional and loving. Thus, people are accustomed from his childhood with the image of a perfect prince or princess, heroes that is becoming increasingly more muscular and developed throughout the evolution of cinema. While the aesthetic perfection is internalized by society and see that this beauty is not a particular good for some people, but everyone should become pretty standard to suit hence those who do not fit this stereotype are somehow excluded from the circle of society standard. One way people try to develop and hone the look is through weight training exercises in specialized academies. The problem is when it appears not the contentment of the individual in relation to his body. Even when your muscles are increasing, for the person who suffers from Vigorexia changes are significant to the point never to be content with their state of development, which is seen distorted and underestimated. Thus this paper aims to describe the situation and how the routine Vigorexia context and people are distorted to suit the aesthetic and social demands that are made, through a literature search on the muscle dysmorphia. It is of paramount importance to know the pathological picture of Vigorexia not only by professionals of Psychology, Psychiatry and Medicine, but also for Physical Educators that are constantly present in an active and that can positively or negatively influence the routine and pathological picture of these people with Muscular Dysmorphia
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Indoor soccer is a modality of sport similar to football, which is accompanying an increasing of the number of participants. With the growth of this sport, increased as well the number of injuries, which has been requiring greater attention and care from the health professionals. AIMS: To investigate the functional balance before and after an indoor soccer game and analyze the maximum force before and after the game, in order to verify if there is a great loss of muscle strength of knee flexors and extensors during the game. METHODS: The study included seven amateur soccer players. The isokinetic evaluation was made using the Biodex 3 isokinetic dynamometer at velocities of 60°/s and 180°/s with five repetitions at each velocity for each leg. Further, the study analyzed the peak torque of each leg at each speed of the extensor muscles and flexor concentric and eccentric. RESULTS: Compared to the peak torque before and after the game, there were no significant differences. At 60°/s in the non-dominant leg, peak torque decreased after the game of the extensor concentric and eccentric. In the dominant leg there was a decrease of peak torque in eccentric flexion at 60°/s and concentric flexion to 180°/s. Comparing the peak torque between dominance, there was any significant differences in speed. However, in eccentric flexion at 60°/s before the match there was a significant difference. The peak torque of the dominant leg showed better results than the non-dominant leg. Regarding the functional balance there was no statistically significant differences between the muscles involved. CONCLUSION: From the results achieved, it is possible to conclude that the peak torque of flexor eccentric decreases depending on the length of the exercise. This muscle is stronger in the dominant leg, comparing to the non-dominant leg
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Pós-graduação em Zootecnia - FCAV
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Pós-graduação em Medicina Veterinária - FCAV
Características da carne de cordeiros alimentados com glicerina proveniente da produção de biodiesel
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Pós-graduação em Zootecnia - FCAV
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Pós-graduação em Bases Gerais da Cirurgia - FMB
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Fisioterapia - FCT
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Dexamethasone is a synthetic glucocorticoid widely used to treat allergic and inflammatory processes. This drug is used in three main situations, are used to contain acute or chronic inflammatory processes, or like immunosuppressive drug's. In these cases the patient will receive high doses for a chronic period and, therefore, has a much greater chance of adverse side effects, such as hypertension, diabetes and dyslipidemia. Dexamethasone promotes deleterious effects on the arachidonic acid pathway, when administered in high doses, because it is a potent anti-inflammatory drug. We recently demonstrated that dexamethasone significantly reduces the protein expression of vascular endothelial growth factor (VEGF) in both skeletal muscle and heart, but the mechanisms involved remain unclear. Meanwhile, exercise has been shown to be effective against high blood pressure, diabetes and dyslipidemia, promoting, among other factors, the increase in VEGF and angiogenesis. One possible explanation for these effects would be the creation of new vessels mediated by inflammation, or by the stimulation of the formation of products of the metabolism of arachidonic acid (AA), such as prostaglandin E2 (PGE2) and VEGF, by increasing the stimulation of the enzymes cyclooxygenase 1 and 2 (COX-1 and COX-2). Little is known about the preventive effects of training on the action of dexamethasone in the arachidonic acid pathway. Therefore, the aim of this study was to determine whether aerobic exercise training, performed before and concomitant treatment with dexamethasone, was able to prevent the effects of the dexamethasone in the protein expression of COX-2 and VEGF. For this, we used young Wistar rats (n = 40) which were randomly divided into 4 groups: sedentary control (SC), sedentary and treated with dexamethasone (SD), trained control (TC) and trained and treated with dexamethasone (TD). These rats performed aerobic exercise training, 60% of maximum capacity, 5
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Dexamethasone (DEXA) is a synthetic glucocorticoid widely used in the handling of several drugs, for its proven benefits in fighting inflammation and allergies. Despite their benefits, their chronic use leads to several side effects that include changes in the body in the metabolism of carbohydrates, lipids and proteins. Moreover, being an anti-inflammatory, acts on the arachidonic acid pathway, reducing the expression of the enzyme cyclooxygenase (COX-2) and growth factor derived from the endothelium of blood vessels (VEGF) in various tissues. However, its effects on the myocardium are still uncertain. The physical training (PT), in turn, promotes effects contrary to those caused by chronic use of DEXA, however, little is known about the preventive effects of TF in the side effects of Dexa in the myocardium. Therefore, the aim of this study was to determine if the TF has the ability to prevent and/or mitigate the effects of Dexa in protein expression of COX-2 and VEGF in the myocardium. Forty animals were divided into 4 groups: sedentary control (SC), sedentary treated with Dexa (SD), trained control (TC) and Trained treated with Dexa (TD) and submitted to a protocol of physical training on the treadmill for 70 days (1 h/day-5 days per week, 60% of physical capacity) or kept sedentary. Over the past 10 days, rats were treated with Dexa (Decadron, 0.5 mg/kg per day, ip) or saline. During training the animals were weighed weekly and during treatment daily. At the end of treatment was made to measure fasting glucose levels of animals. The rats were killed with excess anesthesia and cardiac muscle was removed, weighed, homogenized, centrifuged and stored at -20° C for analysis of protein expression of VEGF and COX-2 by Western blotting technique. Treatment with dexamethasone caused a weight loss of 18% in sedentary animals and 13% in trained as well as elevated levels of fasting glucose in sedentary (88%). The TF was unable to mitigate the loss in...