Academic literature on the topic 'Ensaio biomecânico'
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Journal articles on the topic "Ensaio biomecânico"
Fernandes, Túlio Diniz, Alexandre Leme Godoy dos Santos, Marcos de Andrade Corsato, Marcos Hideyo Sakaki, Rafael Trevisan Ortiz, and Marcelo Pires Prado. "Estabilização da artrodese da articulação tarsometatársica: estudo biomecânico." Acta Ortopédica Brasileira 16, no. 1 (2008): 45–48. http://dx.doi.org/10.1590/s1413-78522008000100009.
Full textSchmitt, B., G. M. C. Serafini, R. N. Libardoni, F. W. Souza, J. P. S. Feranti, C. R. Cauduro, A. S. Amaral, and M. V. Brun. "Ensaio biomecânico para determinação do diâmetro de barra conectora de polimetilmetacrilato em fixador esquelético externo tipo Ia no úmero de suínos." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 70, no. 3 (June 2018): 779–86. http://dx.doi.org/10.1590/1678-4162-9620.
Full textYamauchi, K. C. I., C. R. A. Ferrigno, C. A. M. Pereira, R. A. O. Cavalcanti, and J. H. H. Grisi-Filho. "Comportamento biomecânico de diferentes placas de avanço da tuberosidade da tíbia em cães: estudo comparativo ex vivo." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 68, no. 4 (August 2016): 945–52. http://dx.doi.org/10.1590/1678-4162-7748.
Full textRamos, Solange de Paula, Vanessa Batista da Costa Santos, Roberto José Ruiz, Maria Carla Perozim Preti, Mayara Caroline Ventura, Maiara Santos Nogueira, Francelaine Bruna Campana, Sérgio Swain Müller, Marcos Doederlein Polito, and Claudia Patrícia Cardoso Martins Siqueira. "Efeito do treinamento físico e da ingestão crônica de cafeína sobre o tecido ósseo de ratos jovens." Revista Brasileira de Educação Física e Esporte 26, no. 2 (June 2012): 209–17. http://dx.doi.org/10.1590/s1807-55092012000200004.
Full textSampaio, Renato L., Moacir S. Lacerda, Pedro Carlos L. Oliveira, João Cláudio do Carmo Paneto, Eustáquio R. Bittar, Gilberto A. Borges, Graciela Mendes M. Camacho, and Eduardo M. Braga. "Variação da força de resistência à micro-tração de fragmentos de ossos corticais preservados em diversos meios e a fresco: estudo experimental em coelhos." Pesquisa Veterinária Brasileira 29, no. 4 (April 2009): 345–52. http://dx.doi.org/10.1590/s0100-736x2009000400012.
Full textFreitas, Anderson, Lucas S. Ramos, Érgon LAB Dantas, Vincenzo Giordano Neto, Patrick F. Godinho, and Antônio C. Shimano. "Ensaio biomecânico após retirada de parafusos canulados do fêmur proximal (análise in vitro)." Revista Brasileira de Ortopedia 54, no. 04 (July 2019): 416–21. http://dx.doi.org/10.1055/s-0039-1693046.
Full textBonavides Júnior, Aloísio Fernandes, Rodrigo César Rosa, Antônio Carlos Shimano, José Baptista Volpon, and Maurício Kfuri Júnior. "Novo sistema para acoplamento de parafusos de interferência: ensaio biomecânico de torção." Acta Ortopédica Brasileira 19, no. 1 (2011): 28–31. http://dx.doi.org/10.1590/s1413-78522011000100006.
Full textSouza, Luciana Bronzi de, Cristiana Maria Murbach Freire, Renata Noêmia Alves de Almeida, Sérgio Swain Müller, Sérgio Alberto Rupp Paiva, and Gláucia Maria Ferreira da Silva Mazeto. "Efeito de diferentes doses de ácido retinoico sobre a resistência óssea de ratos jovens." Revista de Nutrição 24, no. 3 (June 2011): 375–81. http://dx.doi.org/10.1590/s1415-52732011000300001.
Full textDota, Aline Fazzolari, Maurício Rodrigues Zenaide, Marco Kawamura Demange, Gilberto Luis Camanho, and Arnaldo José Hernandez. "Estudo das propriedades mecânicas do ligamento cruzado posterior e do ligamento patelar de cadáveres de seres humanos após utilização de radiofreqüência." Acta Ortopédica Brasileira 15, no. 3 (2007): 138–42. http://dx.doi.org/10.1590/s1413-78522007000300003.
Full textFrança, Luiz Cláudio de Moura, Mauricio Pagy de Calais Oliveira, Marcelo Rugani, Luiz Olimpio Garcia Pedrosa, Rodrigo D'Alessandro Macedo, Bruno Fontes, Marcelo Gonçalves Pereira Duarte, and Rafael Gonçalves Duarte. "Estudo biomecânico comparativo da resistência à força de compressão entre os parafusos pediculares monoaxiais com travamento interno único e parafusos pediculares monoaxiais com travamento duplo interno e externo." Coluna/Columna 9, no. 2 (June 2010): 113–18. http://dx.doi.org/10.1590/s1808-18512010000200005.
Full textDissertations / Theses on the topic "Ensaio biomecânico"
Martins, Cesar Antonio de Quadros. "Comportamento biomecânico do reparo ósseo nos biomateriais de origem bovina." Universidade do Estado de Santa Catarina, 2001. http://tede.udesc.br/handle/handle/347.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
The purpose of this study was to analyze the ultimate strength and displacement behavior of healed 3.5-mm segmental radius defects in seventeen adult male rabbits in a fourty-two days follow-up. The defect was filled out with biomaterials (ten radius) such as bone morphogenetic protein, inorganic bovine bone matrix, organic bovine bone matrix and bovine collagen in one group (group I). Group II (seven radius) received fresh-frozen allograft bone obtained from a rabbit bone-banking created for this study. The opposite limbs were the control group (group III) with seventeen radius. The three point bending and the displacement were recorded in all specimens studied. The one-way analysis of variance (p£ 0.05) and the variation coefficient in the whole three groups. Significant difference in the ultimate strengh were found between group I and III (p= 0.0009). The variable ultimate strength of group I has presented a coefficient of variation of 87%, group II has presented a oefficient of variation of 66% and the control group a coefficient of variation of 31%. Group I in the variable displacement has presented a coefficient do variation of 70%, group II has presented a coefficient of variation of 60% and group III 33%. Beetwen groups I and II the least variated group was group II in both variables. However, four in ten non-unions were recorded in the biomaterial group. All allograft group specimens have shown bone healing in the follow-up period. This study do not demonstrate the effectiveness of bovine origin biomaterials as suitable on bone formation. Clinical Relevance: Segmental Bone loss due to trauma, tumor resection or other causes are one of the most challenging problems in orthopaedic surgery. Several materials have been used as bone regenerator, even thou bone tissue has a very known potential of healing. Allograft bone tissue is very attractive possibility but presents a high disease transmission risk. Although autograft tissue has a short stock tissue for some situations in the daily orthopaedic activity, it remains the gold standard for most surgeons. In some cases, bovine origin biomaterials are the only choice available to solve the bone loss situations.
O presente estudo tem como objetivo identificar a resistência mecânica óssea e o deslocamento do osso neoformado utilizando-se biomateriais de origem bovina e enxerto homólogo no preenchimento de uma falha de 3,5 mm no rádio em 17 dos 19 coelhos adultos machos da raça nova zelândia, com massa de 3,5 a 5,0 Kg. Os biomateriais são substâncias biologicamente ativas, que apresentam efeito osteogênico, isto é, ativam a formação de osso novo nos organismos vivos. Neste estudo foram utilizados três grupos: grupo I com enxerto ósseo orgânico e inorgânico bovino, pool de proteína morfogenética bovina e colágeno bovino, como biomateriais em dez animais. Dois animais foram submetidos à retirada das asas ilíacas para posterior congelamento e implantação em sete animais formando o grupo II, ou enxerto homólogo. O grupo III ou controle consistiu nos rádios não operados dos 17 animais. Após 42 dias, os animais foram sacrificados e os rádios foram submetidos ao teste de flexão em três pontos, com a aplicação da carga no sítio da regeneração, sendo avaliados a carga máxima e o deslocamento neste ensaio mecânico. O teste estatístico realizado foi ANOVA - um caminho, com p£0,05 para três amostras, post-hoc de Scheffé e o coeficiente de variação. Quanto à carga máxima para a ruptura, o grupo I (biomateriais) apresentou uma média de 77,1 N ± 67,2N e um CV (coeficiente de variação) de 87%, o grupo II (enxerto homólogo) apresentou uma média de 154,8 N ±103,2 N, com um CV de 66%, já o grupo controle obteve uma média de 201,8 N ± 63,0N e um CV de 31%, que caracterizou uma diferença estatisticamente significante entre o grupo I com o grupo controle (p=0,0009). Quanto a variável deslocamento, o grupo I apresentou uma média de 1,0 mm ± 0,7mm com um CV de 70%, o grupo do II apresentou uma média de 1,0 mm ± 0,6 mm com um CV de 60% e o grupo III uma média de 0,9 mm ± 0,3 mm e CV de 33%, não demonstrando diferença estatisticamente significante (p=0,49). Quatro espécimes do grupo dos biomateriais que fizeram parte do estudo estatístico apresentaram não consolidação na falha criada, por outro lado os espécimes preenchidos com enxerto homólogo consolidaram em todos os casos. Em conclusão, os enxertos homólogos apresentaram consolidação satisfatória demonstrando um pico de carga máxima com valores próximos aos do grupo controle. Porém, os biomateriais demonstraram uma variação intragrupo muito alta devido às não consolidações, com média de carga máxima muito baixa.
Silva, Irene Raimundo dos Santos. "Influência dos corticosteróides nas propriedades biomecânicas da traquéia de coelhas albinas." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/82/82131/tde-04022005-155455/.
Full textThe effects of methilprednisolona in the adults trachea albinos female rabbits were studied. The goal of this study was examine the potential effects of this armorial traction. The animals were divided in two groups. Ten female rabbits of control group received by way of subcutaneous 2mg/kg/day of salt bed diluted solution. These ten female rabbits of the control group also received by way of subcutaneous proportional volumes of salt bed solution. After 21 days, the animals were sacrificed and their trachea were subjected to traction tests and anatomical pathological studies. Animals of the experimental group presented inferior weight significant from the control group in the end of the treatment (C = 8,94 ± 314g X E = 3555 ± 373g). The groups didnt differ from the statistic point of view as regards of the following variables: limit load of proportionality (C = 8,94 ± 1,68 N X E = 8,93 ± 1,52 N); maxim load (C = 9,12 ± 2,2 N X E = 9,57 ± 1,90 N); stretch out on the limit of proportionality (C = (683 ± 2,08) x '10 POT.-3' m X E = (6,05 ± 1,50) x '10 POT.-3' m); maxim stretch out (C = (7,44 ± 2,60) x '10 POT.-3' J X E = (6,85 ± 1,55) x '10 POT.-3' J); absorbed energy in the elastic phase (C = 28,70 ± 14,43) x '10 POT.-3' m J X E = (27,75 ± 11,06) x '10 POT.-3' J); rigidity (C = 1,08 ± 0,41) x '10 POT.-3' N/m X E = (1,2 + 0,37) x '10 POT.-3' N/m). It was concluded in the end of the treatment that there werent any morphological and biomechanical alterations of the trachea studied, although, the animals of the experimental group suffered a significant slimming in the end of the treatment when compared with the experimental group
Marinheiro, Carlos Alberto. "Desenvolvimento de máquina de movimentos cíclicos para testes biomecânicos." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/82/82131/tde-22042004-100959/.
Full textThe human being locomotes using the complex neuro-muscle-skeletal system, what confers him life quality. Parts of the skeletal system can submit to treatment or even to the substitution for the employment of strange materials to the human body but that provoke small biological reaction and they need to be projected in way to support every resulting tension of the human movement. The objective of this work was to develop a machine of cyclic trial for biomechanical tests using national technology. The machine has an activation system by means of a triphasic motor of 2 HP, 1800 rpm; a system of transmission of cyclic loads using an eccentric axis, that activates a piston, that promotes the movement of two levers that transmit the load for the components at be tested. There is a frequency inverter for control of the number of cycles of the motor, a reservoir of physiologic serum with a system that maintains the serum heated up to 36-38 ºC, and a submerged hydraulic bomb that maintains the serum in constant movement. It was made a cyclic test of fatigue of femoral component of hip arthroplasty, with torsion, following determinations of the norms ISO 7206/89, part 4 and ASTM F 1612/95, and used for the test the Prosthesis Femoral Cemented Model Alpha ® of the company Baumer ®, polished stem of 150 mm and off-set of 37,5 mm. It was also made a trial for verification of cracks following determinations of the norm ABNT NBR ISO 9583/1997. During the 139 hours foreseen for the test of fatigue of the femoral component, the trial machine didnt present mechanical problems, demonstrating efficiency and the success in the production of a machine of cyclic trials for biomechanical tests
Schmitt, Bernardo. "Ensaio biomecânico para determinação do diâmetro de barra conectora de polimetilmetacrilato em fixador esquelético externo tipo Ia: no úmero de suínos." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/10211.
Full textWhile seemingly inert appearance, bones are highly dynamic structures, which promote formation, resorption, repair and maintenance of homeostasis. Fractures in bones occur when the load applied to a specific bone region exceeds its resilience. The use of external skeletal fixator (ESF) is a method of fairly common internal stabilization, in which connector bars polymethylmethacrylate (PMMA) are used without criterion in diameter. In these cases, it can break if it gets too thin or too heavy and uncomfortable when bulky. The aim of this study was to test biomechanical through axial compression and bending, considering different connector bar diameter PMMA correlated to bone diameter for use to type Ia ESF. For this, it was collected 24 swine humerus to make measurements of length, diameter, circumference and testing biomechanical. After the bars confected with 1.5 times the average diameter of the bone (group I), the same diameter bone (group II) and 0.5 times the diameter of the bone (group III). The results obtained, it was observed that the connector bars in group II were more resistant than the bones in the compression test. In the bending test, the bones resisted flexion strength when compared to group III. The group II was 4.3 times more resistant than Group III in the same mechanical test. The results allow a direction for making bars PMMA considering bone diameter as a reference.
Apesar do seu aspeto aparentemente inerte, os ossos são estruturas altamente dinâmicas, envolvidas em constante formação, reabsorção, reparação e manutenção da homeostasia. As fraturas ocorrem quando a carga aplicada sobre determinada região do tecido ósseo supera sua capacidade de resistência. A utilização de fixadores esqueléticos externos (FEE) é método de estabilização interna bastante frequente, no qual podem ser utilizadas barras conectoras de polimetilmetacrilato (PMMA) sem preocupação com o diâmetro. Tais barras podem quebrar se ficarem muito delgadas ou tornarem-se desconfortáveis quando volumosas e pesadas. O objetivo deste trabalho foi testar, por meio de ensaio biomecânico de compressão axial e flexão, qual é o diâmetro mais adequado para a barra conectora de PMMA, correlacionado as dimensões da barra com o diâmetro ósseo para FEE tipo Ia. Para tanto, coletaram-se 24 úmeros suínos para a realização de medidas de comprimento, diâmetro, circunferência e os ensaios biomecânicos. Após, confeccionaram-se barras de 1,5 vezes a média do diâmetro ósseo (grupo I), do mesmo diâmetro (grupo II) e 0,5 vez o diâmetro ósseo (grupo III). Com os resultados obtidos ao comparar os valores dos ossos com os dos grupos II e III, verificou-se que as barras conectoras do grupo II mostraram-se mais resistente do que o tecido ósseo no ensaio de compressão. No ensaio de flexão, o osso foi mais resistente à força de flexão quando comparados ao grupo III. O grupo II foi 4,3 vezes mais resistente do que o grupo III nesse mesmo ensaio. O grupo I apresentou secagem incompleta, onde seu comportamento não foi similar com o restante dos grupos, por isso, não participou da estatística do trabalho. Os resultados permitem um direcionamento para confecção de barras de PMMA do mesmo diâmetro ósseo, sendo suficiente para sustentar sem quebrar um FEE tipo Ia.
Caquías, Daniela Fabiana Izquierdo. "Desenvolvimento e avaliação biomecânica da resistência à flexão de um novo modelo de osteossíntese em fêmur: pinos intramedulares múltiplos bloqueados." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/10/10137/tde-09022011-110541/.
Full textCurrently, there are several methods of fixation used in the repair of femoral fractures in dogs, but some show complications in the technique, and others are not available daily in the professional activity of some veterinarians from Latin America. This study aimed the development of a new, simple model for bone fixation, based on the use of Steinmann and threaded pins, used as multiple locked intramedullary pins (MLIP), and biomechanically test the implants resistance to bending forces. Therefore, we used bilateral femurs of eight cadaveric dogs weighing between 15-25 kg, divided into two groups; in the first group multiple locked intramedullary pins were used in eight femurs, and in the second group, the control group, we used a single intramedullary pin (SIP) occupying between 40-42% of the intramedullary canal, of eight femurs. Both groups were subjected, in a four point device, to nondestructive testing to evaluate the resistance to flexion forces, with forces varying between 0 and 50 kg, and a speed of 5mm/minute. The results under the conditions presented in this study showed that technique locked multiple pins has a lower resistance to bending forces compared with the technique of single intramedullary pin.
Bó, Ísis dos Santos Dal. "Estudo biomecânico comparativo da resistência de segmentos ósseos de rádios de cães autoclavados ou desvitalizados em nitrogênio líquido." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/10/10137/tde-12082015-173730/.
Full textThe present study aim to, biomechanically compare through the four points bending test, the strenght of autoclaved and devitalized in liquid nitrogen radius segments. 20 corpses of dogs (>2 years of age and >20 kg of weight) were used. 40 radius were collected and divided into 4 groups, Autoclave Group (GA), Control Autoclave Group (GCA), Nitrogen Group (NG) and Control Nitrogen Group (GCN). Bone segments from groups GCA and GCN were contralateral to GA and NG. The segments were autoclaved at 121ºC and 2 atm for 20 minutes. Nitrogen devitalization of the bone segments was obtained by 20 minutes immersion, followed by thawing at room temperature and 15 minutes immersion in 0,9% NaCL solution. The biomechanical strenght evaluation was performed in the four points bending test; afterwards, PMI computer program calculated the moment of inertia after the destructive biomechanical assay. Variables compared were maximum strength, stiffness, maximum high trough the transverse section of the bone segment, centers of mass dislocation in relation to x axe, arrow, stress-tension, stress-compression and maximum stress. No statistically significant differences between the GN and GCN groups were found. Statistically significant differences were found between groups GA and GCA only in the comparison of the maximum force variable. The analysis of variable stress-tension, stress-compression and maximum stress showed statistically significant differences between the GA and GN groups, with higher values for the GA group. Comparison of the deltas (GN least GCN and GA least GCA) that no statistical differences were observed was also performed.
Nina, Marcos Ishimoto Della. "Estudo biomecânico do comportamento de diferentes espessuras de capa de cimento ósseo em novo modelo de prótese modular diafisária femoral em cão submetidas a ensaio de torção." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/10/10137/tde-23042009-095807/.
Full textThe feasibility of modular cemented prosthesis in the femoral diaphysis was demonstrated in dogs, but several authors report loosening of bone, cement and implant interface as a major complication. The objective of this study was to evaluate the stabilization of the prosthesis using different thicknesses of cement layer. For this study 48 femurs from 24 dogs weighing over 15 kilograms were used. They were separated in four groups, the first group with eight femurs used a cement mantle from 1.0 to 1.5 mm, the second group, with eight femurs, used a cement mantle from 2.0 to 2.5 mm and the third group, with eight femurs, used a cement layer from 3.0 to 3.5 mm. The femurs were submitted to destructive torsion tests where they were evaluated due to the values of torsional rigidity and maximum torque shown by the implant, bone and bone cement interface. In the fourth group were the remaining intact femurs, they were evaluated using the same torsion test used on the other groups. The results were that under the present conditions we found no biomechanical differences relative to torsional rigidity and maximum torque, using cement layers between 1 mm and 2.5 mm and between 2 mm and 3.5 mm. But we found biomechanical differences between groups of 1 mm to 1.5 mm and 3 mm to 3.5 mm.
Latorre, Carlos Adolfo Salazar. "Artrodese da articulação interfalangeana proximal de equinos: avaliação biomecânica comparativa da técnica com placa de compressão dinâmica de 4,5mm e três orifícios, com dois parafusos transarticulares oblíquos de 5,5mm e técnica com placa \"Y\" de compressão bloqueada de 5,0mm e sete orifícios." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/10/10137/tde-22112013-122140/.
Full textLameness is the main cause of sport horses\' owners consulting equine veterinarians and one of the highest cause to send these animals to the reference hospitals. Long bones and joint fractures have the lesser rate of success, consequence of the hight cost of the treatment and poor prognosis. Understanding as success the return of the horse to previous athletic performance or at least to have useful life. The proximal interphalangeal joint (PIPJ) is clinically important because the injuries that involve it may threaten the horses sport life or its usefulness. The objective of this study was to compare the biomechanical properties of two PIPJ arthrodesis techniques using 4.5mm dynamic compression plate (DCP) in conjunction with two oblique abaxial transarticular 5.5mm cortical screws inserted in lag fashion and 5.0mm Y locking compression plate (Y-LCP) with unicortical locking screws and one axial transarticular 4.5mm cortex screw inserted in lag fashion through the midle plate hole. It was used twelve cadaveric adult equine forelimbs from the first phalanx to the foot. After full-limb preparations, each forelimb pair was randomly assigned to one of two treatment groups. Constructs were submited to axial compression single cycle to failure biomechanical testing. The failure of the screws, plate or bone, and the force at wich it happened was evaluated. There were no significant differences in construct stiffness or max force when loaded to failure, between the DCP and Y-LCP treatment groups. Even though there was no construct stiffness diffrences between the two techniques, the Y-LCP technique provided the possibility of a less invasive procedure with a shorter surgical time. In conclusion, the biomechanical properties of both fixation techniques (DCP and Y-LCP) are equivalent under the test conditions used.
Barbosa, Leandro Kefalás. "Efeito de Mananoligossacarídeos sobre parâmetros densitométricos e biomecânicos de ratos em crescimento." Universidade do Oeste Paulista, 2015. http://bdtd.unoeste.br:8080/tede/handle/tede/727.
Full textThe objective of this study is to evaluate the effect of manann oligosaccharides (MOS) prebiotics on densitometry parameters of the femur by means of bone densitometry and biomechanical test in rats. 144 growing male rats were used, 23 days old, and 36.7 ± 0.6 grams of body weight were divided into 04 experimental groups (n = 36) and kept in individual cages during the experimental period of 56 days: Group Control (GC); Mos Group 1 (GM1); Mos Group 2 (GM2); and Group 3 Mos (GM3). Densitometric analysis and biomechanical testing of bone mineral content were conducted in four stages: 14, 28, 42 and 56 days after beginning the experiment. Simple linear regressions were adjusted data pairs situation, time of collection (every 14 days) and results of bone mineral content parameters (BMC), bone mineral density (BMD), area (A), energy, maximum strength and stiffness. The regressions set of treatments for each parameter were compared in pairs by the intercept and slope of the straight and revealed significant differences between treatments (P <0.0125) in the area parameters, energy absorbed to the maximum strength and maximum strength. The slope of the lines was higher in groups supplemented with MOS compared to the CG. MOS intake increased bone mineralization, which, in turn, increased the resistance to fracture of the femur in all the biomechanical properties and densitometric studied, perhaps due to an increase in the intestinal absorption of nutrients in rats. Given the beneficial results of this study with growing rats as experimental model, it is suggested that this functional food can be used as a food component enhancing bone health.
O objetivo deste estudo é avaliar o efeito dos aditivos prebióticos do tipo mananoligossacarídeos (MOS) sobre os parâmetros densitométricos e biomecânicos, por meio da densitometria óssea e ensaio biomecânico, respectivamente, de fêmures de ratos. Foram utilizados 144 ratos machos em crescimento, com 23 dias de idade e 36,7 ± 0,6 gramas de massa corporal, divididos em 04 grupos experimentais (n=36) e mantidos em gaiolas individuais durante o período experimental de 56 dias: Grupo Controle (GC); Grupo MOS 1 (GM1); Grupo MOS 2 (GM2); e Grupo MOS 3 (GM3). A análise densitométrica e o ensaio biomecânico do conteúdo mineral ósseo foram realizadas em quatro momentos: 14, 28, 42 e 56 dias após o inicio do experimento. Foram ajustadas regressões lineares simples, situação de pares de dados, momento de coleta (a cada 14 dias) e resultados dos parâmetros do conteúdo mineral ósseo (CMO), densidade mineral óssea (DMO), área (A), energia, força máxima e rigidez. As regressões ajustadas dos tratamentos de cada parâmetro foram comparadas duas a duas pelos interceptos e inclinação das retas e revelaram diferenças significativas entre os tratamentos (P<0,0125) nos parâmetros área, energia absorvida até a força máxima e força máxima. A inclinação das retas foi maior nos grupos suplementados com MOS em relação ao GC. A ingestão de MOS resultou em uma maior mineralização óssea, o que, por sua vez, aumentou a resistência à fratura do fêmur em todas as propriedades biomecânicas e densitométricas estudadas, talvez devido a um aumento da absorção intestinal de nutrientes nos ratos. Diante dos benéficos resultados obtidos nesse estudo com ratos em crescimento, como modelo experimental, sugere-se que este alimento funcional possa ser utilizado como um componente alimentar intensificador da saúde óssea, particularmente nos dias de hoje, em que a expectativa de vida aumenta exponencialmente.
Ito, Kelly Cristiane. "Estudo biomecânico de tração (ex-vivo) em osteotomia da tuberosidade tibial de cães estabilizada com placa fixa por \"garfo\" ou parafuso." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/10/10137/tde-22032013-130011/.
Full textTibial tuberosity advancement (TTA) is one of the techniques for treatment of cruciate ligament rupture in dogs developed by Montavon, Damur and Tepic (2002). The success of the technique in reducing or eliminating the forces of cranial tibial displacement in knees with ruptured cranial cruciate ligament as been documented in experimental and clinical studies. In the post-operative technique, implant failure is reported in 1-5% of hindlimbs operated. This number was attributed to technical error or the initial design of the implant that was considered insufficient. To compare the biomechanical strength between two different plates ATT and minimize the incidence of implant failures, biomechanical tests were performed on 10 pairs of hindlimbs cadaver dogs, the right hindlimb fixed plate and a fork in the left pelvic limbplate fixed by screws. As says were performed using a universal mechanical testing Kratos ® model 5002, equipped with a load cell of 3000N with a test speed of 20 mm / min. The strength parameter and graphs generated were recorded via analog acquisition system TRACOMP-W95 (TRCV61285). The mean load to failure was 128.70 kg/F (minimum 104.55 Kg and maximum 151.80 Kg/F) and 141.99 Kg/F (minimum 111.60 Kg/F and maximum 169.65 Kg/F) in the group using \"fork\" and screws respectively. The standard deviation of the groups \"fork\" and bolt was low, 12.99 and 17.21 respectively. Significant difference (p = 0.0309) between the means of the groups.
Book chapters on the topic "Ensaio biomecânico"
Lima, Karollyne Marques de, Ricardo Barbosa Lima do Nascimento, and Welber Leal de Araújo Miranda. "TÉCNICAS DE VIDEOANÁLISE PARA O ENSINO DE ENGENHARIA E SUAS APLICAÇÕES PARA A BIOMECÂNICA." In Possibilidades e Enfoques para o Ensino das Engenharias, 200–210. Atena Editora, 2019. http://dx.doi.org/10.22533/at.ed.72219220420.
Full textLimirio, Pedro Henrique Justino Oliveira, Juliana Simeão Borges, Nayara Teixeira de Araújo Reis, Milena Suemi Irie, Paula Dechichi, and Priscilla Barbosa Ferreira Soares. "EFEITOS DA RADIAÇÃO IONIZANTE NA BIOMECÂNICA E MICROESTRUTURA DO OSSO PERIIMPLANTAR E NA ESTABILIDADE IMPLANTE – OSSO." In Tecnologias Aplicadas à Prática e ao Ensino da Odontologia, 24–36. Atena Editora, 2020. http://dx.doi.org/10.22533/at.ed.7282005063.
Full textRebêlo, Felipe Lima, Aldir de Miranda Motta Neto, Rodrigo da Silva Santos, Jean Charles da Silva Santos, George Ferreira Malta, and Luan Patrick Santos Silva. "INTERFERÊNCIA DOS VÍCIOS POSTURAIS NAS ALTERAÇÕES BIOMECÂNICAS DA COLUNA VERTEBRAL EM ESCOLARES DA 4ª SÉRIE DO ENSINO FUNDAMENTAL." In Fisioterapia: princípios fundamentais. Editora Conhecimento Livre, 2020. http://dx.doi.org/10.37423/200500923.
Full textConference papers on the topic "Ensaio biomecânico"
RIBEIRO BARBOSA, WELLINGTON, and RENATA LACERDA CALDAS. "MÉTODO STEAM: ENSINO INTERDISCIPLINAR SOBRE BIOMECÂNICA." In CONINTER 2020. Even3, 2020. http://dx.doi.org/10.29327/coninter2020.298633.
Full textde Souza Pocovi, Carolini, and Mauricio Stivanello. "DESENVOLVIMENTO DE SOFTWARE PARA DEFINIÇÃO DE ENSAIOS NECESSÁRIOS PARA IMPLANTES ORTOPÉDICOS." In 6º Encontro Nacional de Engenharia Biomecânica. ABCM, 2018. http://dx.doi.org/10.26678/abcm.enebi2018.eeb18-0064.
Full textVieira, Giovana Carvalho, Isabela Del Ponti, Geovana Coelho Ferreira, and Fabrício Singaretti de Oliveira. "EFEITO NA BIOMECÂNICA DO JEJUNO DE CADÁVERES CANINOS PREPARADOS QUIMICAMENTE E EMBALADOS À VÁCUO VISANDO O ENSINO CIRÚRGICO." In I CONGRESSO NACIONAL DE RESIDÊNCIAS EM SAÚDE (ONLINE). EDITORA OMNIS SCIENTIA, 2021. http://dx.doi.org/10.47094/iconres.2021/25.
Full textPonti, Isabela Del, Giovana Carvalho Vieira, Andréa Barros Piazzon de Souza Queiroz, and Fabrício Singaretti de Oliveira. "CADÁVERES DE CÃES PREPARADOS E EMBALADOS À VÁCUO VISANDO AO ENSINO DA CIRURGIA VETERINÁRIA - EFEITO NA BIOMECÂNICA DA PELE." In I CONGRESSO NACIONAL DE RESIDÊNCIAS EM SAÚDE (ONLINE). EDITORA OMNIS SCIENTIA, 2021. http://dx.doi.org/10.47094/iconres.2021/26.
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