Equilíbrio muscular e pico de torque após jogo de futsal

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

Efeito do tratamento alcalino da fibra na resistência mecânica do compósito epóxi/capim-sapê

Due to growing concerns for reducing environmental damage caused by the use of non-renewable raw materials, there is a growing demand for research related to aggregate technology with environmental preservation. Thus, the use of non-renewable materials and less aggressive materials has been gaining attention. About composite materials, the exchange of synthetic fibers by natural fibers, especially vegetable fiber as reinforcement, has been increasing, due to its physical-chemical properties such as mechanical strength, nontoxic, low cost, low density, processing flexibility, non-abrasive to the process equipment, requiring simple surface treatments, etc. This objective was to process composites reinforced with long fibers of sapegrass in epoxy matrix and characterize the composites through mechanical tests. Three groups of composites were prepared according to the treatment received by the reinforcement: without treatment, alkali treatment at concentration of 5% w/v and alkali treatment at 10% w/v concentration. The materials were analyzed by tensile and flexural, and tests also optical microscopy and scanning electron microscopy (SEM). The results were statistically analyzed. As the main result, the alkali treatment of 5% in the sapegrass fibers increases the tensile and flexural strength, as a consequence of the improve adhesion between matrix and reinforcement

Comportamentos, térmico e mecânico, de compósitos de polipropileno e resíduo da hidrólise enzimática do bagaço de cana de açúcar

Pós-graduação em Engenharia Mecânica - FEG

Confecção e avaliação de chapas de madeira aglomerada com aproveitamento de resíduos de marcenaria industrial

Pós-graduação em Engenharia Civil - FEIS

Estudo da influência da adição de resíduos de óleo em concretos para aplicação em pavimentos

Pós-graduação em Engenharia Civil - FEIS

Obtenção de rochas sintéticas a partir de resíduos de vidro comercial e pó de granito

Pós-graduação em Engenharia Mecânica - FEG

Sistema de avaliação e tratamento da coluna lombar com o uso de tração mecânica

Pós-graduação em Engenharia Mecânica - FEG

Influência de três tratamentos de superfície para cerâmicas a base de zircônia na resistência adesiva e no comportamento à fadiga do material

Pós-graduação em Odontologia Restauradora - ICT

Estudo do comportamento em fadiga das ligas AA6005, AA6063 e AA6351

Aluminum alloys have shown great potential for the automotive industry, especially aluminum alloys 6xxx series. This category has good mechanical strength and excellent corrosion resistance, important for the areas of construction and transport. The automotive industry has always shown great interest in the study of fatigue behavior, because structural components are subjected to cyclic and vibration loads, generating cracks and fracturing. The mechanical response depends on the material properties, applications, surface condition and microstructure. In this work was study the fatigue behavior of high cycle of machined bodies (not polished) and the effect of roughness on the fatigue life for three aluminum alloys of 6xxx series: AA6005, AA6351 and AA606, all in the T6 condition . S / N curves were made from fatigue tests in rotating bending (R = -1). The influence of roughness was studied by measuring the roughness of each specimen. Was compare the fatigue behavior of polished specimen and not polished specimens. The fractured surfaces of samples were observed by MEV, and it was observed that most of nucleation sites for fatigue crack is initiated below the surface

O comportamento prosódico dos monossílabos no português arcaico por meio das Cantigas de Santa Maria

This paper aims to conduct a study on the prosodic behavior of monosyllables in Medieval Portuguese. This research is based on an innovative methodology that observes the relation between musical and linguistic prominences and its contributions for data collection regarding the prosodic structure of the language in study. There are in Medieval Portuguese heavy (tonic) monosyllables and light (atonic) monosyllables with diverse syllabic structure. The onset is irrelevant for the syllabic weight. Monosyllables with a consonant in the coda are heavy unless this consonant represents an inflexion element. Monosyllables with no consonant in the coda are normally light but there are also heavy monosyllables with no consonant in the coda.

Modulação autonômica cardíaca após exercícios com haste oscilatória em ambos os sexos

Pós-graduação em Fisioterapia - FCT

Detecção de danos em estruturas guiadas usando ondas de alta frequência

Pós-graduação em Engenharia Mecânica - FEIS

Caracterização microestrutural e crescimento subcrítico de trincas em cerâmicas odontológicas

Pós-graduação em Odontologia Restauradora - ICT

Impacto da energia de micro-ondas na sinterização da zircônia odontológica

Pós-graduação em Odontologia Restauradora - ICT