986 resultados para Teste de estresse


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Objetivo: O presente estudo buscou um indicador de classificação de presença de dor lombar baseado no tempo de resistência isométrica e em variáveis eletromiográficas. Material e Métodos: Para tanto participaram do presente estudo 40 voluntários do gênero masculino, os quais foram divididos em dois grupos de 20 voluntários, a saber: grupo sem dor lombar e grupo com dor lombar. Para a captação dos sinais eletromiográficos foram utilizados eletrodos de superfície descartáveis passivos de contato bipolar de Ag/AgCl conectados a um pré-amplificador de ganho de 20 vezes. A distância intereletrodos foi fixa em 20mm. Os eletrodos foram dispostos bilateralmente sobre os músculos longuíssimo do tórax, iliocostal lombar e multífido lombar. Foi utilizado um módulo de aquisição de sinais biológicos de 8 canais no qual foram conectados os eletrodos. Para a aquisição dos sinais foi utilizado um software específico (Aqdados 7-Lynx®) com a freqüência de amostragem calibrada em 2000 Hz. Com os equipamentos preparados e os eletrodos conectados os voluntários realizaram o teste de Sorensen, o qual consiste em sustentar o peso do tronco, em posição horizontal, até a exaustão voluntária. Para a análise dos sinais eletromiográficos foram utilizadas rotinas específicas em ambiente MatLab (MathWorks®). Neste software foi obtida a atividade eletromiográfica dos músculos selecionados durante o teste de contração isométrica até a exaustão para a determinação dos valores de root means quare (RMS) em pacotes de 1s a cada 0.5s (overlap). De cada espectro foram determinados os valores de frequência mediana (FM) e frequência média (Fmed) do sinal. Com a RMS, FM e Fmed foram obtidos também os valores de Razão ML/LT, Razão ML/IL e Razão IL/LT para cada variável. Com isto, os valores de RMS, FM e Fmed, juntamente com os valores de Razão ML/LT, Razão ML/IL e Razão IL/LT de cada variável, foram associados com o tempo...

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Soccer is one of the most practiced sports in the world, and for many years, some areas of physical education has been doing studies related to the improvement of their income from these areas if this sport psychology. The psychological aspects are very influential and involved in the daily life of an athlete, especially for basic categories of athletes who see in soccer a dream to come true or only a source of income for his family, where such aspects act beneficially or evil for the athlete. Stress, in particular, can appear in various situations and in various ways, and different influences and reactions athlete to athlete, also resulting in physiological changes and variations in performance. Stress, and especially stressful situations, like any psychological aspect should be identified in order to train your athlete to know how to deal with stressful situations. Know what are the stressors, which carries the stress load for the athlete, how to handle the stressful situations, using psychological training in the preseason, know how to use stress management techniques, and be able to manage it all so your athlete reaches an optimal level of income is described in the present work, in order to provide a theoretical and updated reference for professionals of Physical Education, so that they stay up to date on sports psychology and also understand a little more on this subject, which is still little discussed within soccer and often overlooked by many professionals who are already in the context of competitive soccer

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Pós-graduação em Medicina Veterinária - FCAV

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Hyperadrenocorticism is a relatively common endocrinopathy in dogs, which is associated to an excessive production or administration of cortisol. The most affected breeds are Poodles, Teckels, Boxers, Boston Terriers and Beagles. The clinical signs most commonly observed are polyuria, polydipsia, polyfagia, panting, distended abdomen, endocrine alopecia, muscular weakness and lethargy. Laboratorial abnormalities include stress leukogram, increase in alkaline phosphatase and alanine aminotransferase activities, hypercholesterolemia, lipemia, hyperglycemia and hyposthenuria. The preferred essay to evaluate adrenal gland function is the low-dose dexamethasone suppression test, whereas the most used treatments include mitotane and trilostane. The objective of this paper is to review hyperadrenocorticism in dogs, because this disease is relatively common in small animal clinics and has many long-term complications.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

One of the factors that affect the control of brown - roots environmental bedbug is the wide availability of plant species. Thus, this study aimed to evaluate the migration of nymphs of the brown - roots between plant species of economic importance and invasive stinkbug. Eight species of plants have been established in a set formed by eight circular PVC containers, connected symmetrically with free communication to a central circular container. The experiment was arranged in a completely randomized design and consisted of eight treatments and six replications. The test evaluations were performed on 15o , 30o , 45o and 60o days after the release of the nymphs, by counting the insects that migrated to the roots of different plants. It was observed that by the 30o day of early release nymphs, no significant differences (P < 0,05) in the choices nymph by plants. B. alata at 15 days of initial release and B. alata and grass-dictyoneura at 30 days were plants that had higher migration. All counts were carried out on 45o and 60o days, the migration of U. brizantha cv. Marandu presented significantly higher than all other species tested plants nymphs.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The aim of this study was to evaluate the effect of glutamine supplementation of the diet on intestinal mucosa morphology, performance, and egg quality of commercial laying hens, submitted to heat stress and thermoneutral conditions. In this study, 96 (Isa Babcock) laying hens at 35 weeks of age were used and distributed in a completely randomized design according to a 2x2 factorial arrangement, with two levels of ambient temperature (thermoneutral and hot) and two levels of glutamine in the diet (0.0 and 1.0% of inclusion), in 6 replicates of 4 hens per box. Feed intake, daily egg production, feed conversion per kilogram of eggs, and egg quality were obtained in two periods of 28 days each. Heat stress decreased egg production and quality, and glutamine supplementation improved egg quality and feed conversion. The heat and glutamine supplementation provided an increase in calliciform cells quantity in duodenum and ileum, respectively. Significant morphological modifications in the intestinal mucosa of laying hens were not found.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

In this study, we aimed to evaluate the effect of five drying systems on the quality of crambe seed and the influence of the pericarp in its electrical conductivity. The experimental design adopted was randomized blocks with four replications. The following drying methods were applied: drying in the field, on the patio, under shade, with heated air, and non-heated air. To evaluate the electrical conductivity and the fat acidity, the seeds, from the cultivar FMS Brilhante, were analyzed with and without pericarp. . An analysis of variance was performed and the means were compared by Tukey test (p≤0,05). We also performed the Pearson linear correlation between electrical conductivity and fat acidity in order to evaluate the pericarp influence. The 4 drying system using shades cause less damage to the seeds; and the presence of pericarp decreased the sensitivity of the electrical conductivity

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Two experiments were conducted in order to study the effects of seed number, temperature and time of soaking sesame seeds on the results of the electrical conductivity test for physiological quality of seeds. In the experiment I evaluated the electrical conductivity varying the number of seeds (25, 50 and 100) and temperature (20, 25 and 30° C) in experiment II is different soaking periods (2, 4, 6, 8, 12, 16, 20 and 24 h). The tests were performed with three cultivars (cv. Trebol, cv. Cnpa G4 e cv. Comum). The treatments in factorial 3x3x3 and 3x8 in experiments I and II, respectively. The experimental design was completely randomized, with four replications. Means were compared by Tukey test at 5% probability. The characterization of cultivars held through the germination and vigor tests (physical, physiological and biochemical), which rated the Trebol cultivar seeds with better physiological then the Cnpa G4 and Comum. The electrical conductivity test was conducted with four sub-samples of 25 pure seeds soaked in 75 mL of deionized water at 25° C, to separate the lots from 2 hours of soaking, being feasible to evaluate the quality sesame seeds.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Apoio à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)