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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Nível de flexibilidade obtido pelo teste de sentar e alcançar a partir de estudo realizado na grande São Paulo / Level of flexibility through sit and reach test from research performed in São Paulo city

Ribeiro, Cibele Calvi Anic [UNIFESP] 29 September 2010 (has links) (PDF)
Made available in DSpace on 2015-07-22T20:50:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-09-29. Added 1 bitstream(s) on 2015-08-11T03:26:26Z : No. of bitstreams: 1 Publico-281.pdf: 642470 bytes, checksum: 7cff646f43c3d6b2b74861212410042b (MD5) / Objetivo: identificar o nível de flexibilidade de homens e mulheres de diferentes faixas etárias através do teste de sentar e alcançar seguindo protocolo do Canadian Standardized Test of Fitness (CSTF); classificá-los de acordo com a tabela sugerida pelo mesmo e, a partir dos resultados obtidos elaborar uma nova tabela normativa que reflita a população estudada. Métodos: 16.405 sujeitos (11.114 mulheres e 5.291 homens) praticantes e não praticantes de exercícios físicos regulares foram divididos em grupos etários: 15 a 19 (n=954), 20 a 29 (n=2916), 30 a 39 (n=2161), 40 a 49 (n=2333), 50 a 59 (n=2739), 60 a 69 (n=3195), acima de 70 (n=2107). Os percentis foram calculados com escores do teste original e como pontos de corte considerou-se os percentis 20, 40, 60 e 80 para classificação fraco, abaixo da média, média, acima da média, excelente, respectivamente. Resultados: De acordo com a tabela proposta CSTF as faixas etárias entre 15 e 39 anos foram classificadas como fraco, com média de flexibilidade variando entre 24,80±9,68cm e 26,13±10,11cm no feminino e entre 21,48±9,90cm e 22,84±9,64cm no masculino. Nas categorias de 40 a 69 a média variou entre 22,76±9,62cm e 25,39±9,54cm no feminino e entre 16,39±10,13cm e 19,93±9,19cm no masculino, ficando abaixo da média. Conclusões: Apesar de a maioria da amostra ser praticante de exercício físico regular, a média do nível de flexibilidade apresentada não correspondeu à média sugerida pela tabela canadense demonstrando a importância de se construir tabelas de referências nacionais e se estabelecer novos valores normativos como a tabela proposta pelo presente trabalho. / Objective: Examine the level of flexibility of men and women in different ages through the sit and reach test protocol and classify them in accordance with the Canadian Standardized Test of Fitness (CSTF), and from results, draw up a new table that reflects the population analyzed. Methods:16405 individuals physically active and sedentaries were divided in different age groups: 15 to 19 (n = 954), 20 to 29 (n = 2916), 30 to 39 (n = 2161), 40 to 49 (n = 2333), 50 to 59 (n = 2739), 60 to 69 (n = 3195), above 70 (n = 2107). For preparation of the table, the percentiles were calculated for the scores of the test. The percentiles 20, 40, 60 and 80 mentioned above were used as cutoff to generate the ratings: poor, below average, average, above average and excellent, respectively. Results: According to table proposed by CSTF the age groups from 15 to 39 were classified as poor with a flexibility average ranging from 24,805±9,684cm and 26,130± 10,111cm in females and between 21,480±9,905cm and 22.848±9,648cm in males. In the categories from 40 to 69 the average flexibility ranged between 22,768± 9,627cm and 25,396±9,547 in females and between 16,396 ±10,136cm and 19,935±9,192cm in males were classified as below average. Conclusions: Although most of the samples were practicing regular exercise, the average flexibility level presented did not correspond to the average suggested by the CSTF demonstrating the importance of building national reference tables and to establish new normative values as the scale proposed by this work. / TEDE / BV UNIFESP: Teses e dissertações
2

Relações entre ginástica holística, postura e flexibilidade em meninas de 10 a 13 anos de idade / Relations between the practice of holistic gymnastics, posture and flexibility in 10 to 13- year-old females

Lopes, Fernanda Fonseca dos Santos, 1963- 22 August 2018 (has links)
Orientador: Cecilia Guarnieri Batista / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas / Made available in DSpace on 2018-08-22T13:02:30Z (GMT). No. of bitstreams: 1 Lopes_FernandaFonsecadosSantos_M.pdf: 1096248 bytes, checksum: 537383fa9ca6273e3f72c402b0350fc6 (MD5) Previous issue date: 2013 / Resumo: A criança de 10 a 13 anos está em fase de crescimento e desenvolvimento, a literatura destaca que a flexibilidade é maior nessa fase, porém, aponta para uma alta prevalência de alterações posturais na coluna dessa população. A Ginástica Holística se relaciona com a postura e flexibilidade através dos processos metodológicos utilizados em cada aula. Nelas são abordados os seguintes aspectos: relaxamento, respiração, alongamento e equilíbrio. Objetivo: Relacionar a prática de Ginástica Holística com postura e flexibilidade em meninas de 10 a 13 anos. Método: Estudo de caráter experimental com meninas de 10 a 13 anos de escolas públicas dos municípios de Campinas/SP e Hortolândia/SP. A amostra constituiu-se de 43 meninas saudáveis (22 no grupo experimental e 21 no grupo controle). Foi feita a avaliação postural quantitativa através da fotogrametria (software de avaliação postural SAPO) para analisar e mensurar a postura e flexibilidade das meninas. A flexibilidade foi medida também pelo teste da distância do 3º dedo ao solo. Após a avaliação foram realizadas 9 aulas de Ginástica Holística com o grupo experimental. Resultados: Os dados foram analisados estatisticamente, adotando-se o nível de significância 5%. Para comparação das alterações posturais entre grupos foi utilizado o teste de Mann-Whitney e para comparação de medidas numéricas entre os dois grupos ao longo do tempo foi utilizada a ANOVA. Em relação à postura os resultados demonstram que, após a intervenção, as participantes do grupo experimental apresentaram redução significativa na diferença do comprimento dos membros (CMI) e uma aproximação do padrão de verticalidade (AVCE). Constatou-se também um aumento na extensão coxo-femoral para os dois grupos. Em termos de flexibilidade, houve diferenças significativas: as participantes do grupo experimental apresentaram maior flexibilidade nas medidas (MF1), (MF2) e (MF3) / Abstract: The 10 to 13-year old child is in a growth and development stage. Literature emphasizes that flexibility is greater at this stage, although it also indicates a high prevalence of postural alterations in this population's spine. Holistic Gymnastics relates itself to posture and flexibility through methodological processes used in each class, in which aspects such as relaxation, respiration, stretching and balance are approached. Aim: To relate the practice of Holistic Gymnastics to posture and flexibility in 10 to 13- year-old females. Method: A study of experimental character with 10 to 13- year- old females of the towns of Campinas/SP and Hortolândia/SP. The sample constituted of 43 healthy girls (22 in the experimental group and 21 in the control group). The quantitative postural evaluation was carried out through photogrammetry (SAPO postural evaluation software) to analyze and measure the girls' posture and flexibility. Flexibility was also measured through the third-toe-to-the-ground distance test. After the evaluation, 9 Holistic Gymnastics classes were conducted with the experimental group. Results: Data was analyzed statistically, and the 5% significance level was adopted. The Mann-Whitney test was used for comparison of the postural alterations between groups, and ANOVA was used to compare the numeric measures between the 2 groups over time. In relation to posture, the results demonstrate that, after intervention, the participants in the experimental group showed a significant reduction in the difference of lower limb length (CMI) and an approximation of the verticality pattern (AVCE) - vertical body alignment left lateral view. An increase in the coxofemoral extension was also found for the 2 groups. In terms of flexibility, there were significant differences: the experimental group participants showed greater flexibility in the measures (MF1), (MF2) and (MF3) / Mestrado / Interdisciplinaridade e Reabilitação / Mestra em Saúde, Interdisciplinaridade e Reabilitação
3

Asociación entre las lesiones y la flexibilidad en deportistas de una universidad de Lima- Perú / Association between injuries and flexibility in athletes from a university in Lima-Peru

Montoya Grados, Angel Andre, Ospinal Muedas, Evelyn Susan, Villacrez Anchante, Jhosselyn Milagros, Yaya cante, Giancarlo, Zegarra Baltazar, Patricia Caroline 15 October 2020 (has links)
Objetivo: Determinar si existe asociación entre las lesiones y la flexibilidad de los deportistas de una universidad privada de Lima-Perú en el 2018. Metodología: Estudio transversal analítico en deportistas de una universidad de lima, Perú. Se excluyeron deportistas que no realizaron la prueba de flexibilidad. Se utilizó una base secundaria donde se evidencia medidas de rangos de flexibilidad, core stability y propiocepción. La flexibilidad se midió a través de siete pruebas mediante el uso del goniómetro, seis en el core stability y seis pruebas en propiocepción. Resultados: De un total de 305 deportistas el 61,4% son hombres, 88,8% pertenecen a las carreras de humanidades, 53,4% practica deporte individual y un 35,2% presenta lesiones previas a la evaluación. En cuanto al análisis descriptivo de la flexibilidad la prueba flexión de cadera con flexión de rodilla de lado derecho (pasiva) tuvo una media de 141.33° de rango de movimiento y 139.23° en el lado izquierdo. Al realizar el cruce entre la flexibilidad y lesiones deportivas no se encontraron valores estadísticamente significativos. Sin embargo, en el análisis multivariado – crudo se encontró que la prueba de Thomas modificado de lado derecho- normal tuvo un valor significativo de p= 0.01 y en el lado izquierdo – hipermovil un valor de p<0.05. Conclusión: En nuestro artículo de investigación no se encontró asociación entre la flexibilidad y las lesiones deportivas. Sin embargo, este resultado es refutado por diversos estudios debido a que demuestran lo contrario. / Objective: Determine if there is an association between injuries and flexibility of athletes from a private university in Lima-Peru in 2018. Methods: Analytical cross-sectional study in athletes from a university in Lima, Peru. Athletes who did not perform the flexibility test were excluded. A secondary base was used where measures of ranges of flexibility, core stability and proprioception were evidenced. Flexibility was measured through seven tests using the goniometer, six in core stability and six tests in proprioception. Results: Of a total of 305 athletes, 61.4% are men, 88.8% belong to humanities careers, 53.4% ​​practice individual sports and 35.2% have injuries prior to the evaluation. Regarding the descriptive analysis of flexibility, the hip flexion test with knee flexion on the right side (passive) had a mean range of motion of 141.33 ° and 139.23 ° on the left side. When performing the cross between flexibility and sports injuries, no statistically significant values ​​were found. However, in the multivariate analysis - crude, it was found that the modified Thomas test on the right-normal side had a significant value of p = 0.01 and on the left side - hypermobile a value of p <0.05. Conclusion: In our research article it is concluded that there is no association between flexibility and sports injuries. However, this result is refuted by various studies because they show the opposite. / Trabajo de investigación
4

"Estudo comparativo dos efeitos da utilização de dois tipos de comandos verbais diferentes no treinamento de alongamento muscular" / Comparative study of the use effects of two kinds of verbal commands in the muscle stretch training

Pardo, Maria Silvia 22 August 2005 (has links)
Avaliou-se os efeitos da utilização de um comando verbal detalhado (CVD) e um simplificado (CVS) sobre a força muscular e a flexibilidade em 31 alunos dos cursos de Fisioterapia e de Terapia Ocupacional. O Grupo A submeteu-se a um programa de alongamento muscular com CVD, e o Grupo B, com CVS. Mensurou-se a força muscular por meio da miometria e avaliou-se a flexibilidade e a postura, associando esta com categorias de encurtamentos musculares pré definidas. Observou-se mudanças no contorno de todas as curvaturas e da cadeia posterior no Grupo A e na curvatura cervical e diminuição do ângulo de flexão do quadril no Grupo B. Não houve significância estatística nas demais variáveis estudadas / The use effects of a comprehensive (CVC) and a simplified verbal command (SVC) in 31 physical Therapy and Occupational Therapy students were evaluated. A Group was submitted to a stretching muscle program with CVC, and B Group, With SVC. The muscle strength was measured by myometry and flexibility and posture were evaluated, associating posture with pre defined muscle shortening categories. Changes were found in every spinal curve outline and posterior muscle chain in A Group and in cervical curve outline and decrease of the hip flexion angle in B Group. There was no statistic significance in the other analyzed variables
5

"Estudo comparativo dos efeitos da utilização de dois tipos de comandos verbais diferentes no treinamento de alongamento muscular" / Comparative study of the use effects of two kinds of verbal commands in the muscle stretch training

Maria Silvia Pardo 22 August 2005 (has links)
Avaliou-se os efeitos da utilização de um comando verbal detalhado (CVD) e um simplificado (CVS) sobre a força muscular e a flexibilidade em 31 alunos dos cursos de Fisioterapia e de Terapia Ocupacional. O Grupo A submeteu-se a um programa de alongamento muscular com CVD, e o Grupo B, com CVS. Mensurou-se a força muscular por meio da miometria e avaliou-se a flexibilidade e a postura, associando esta com categorias de encurtamentos musculares pré definidas. Observou-se mudanças no contorno de todas as curvaturas e da cadeia posterior no Grupo A e na curvatura cervical e diminuição do ângulo de flexão do quadril no Grupo B. Não houve significância estatística nas demais variáveis estudadas / The use effects of a comprehensive (CVC) and a simplified verbal command (SVC) in 31 physical Therapy and Occupational Therapy students were evaluated. A Group was submitted to a stretching muscle program with CVC, and B Group, With SVC. The muscle strength was measured by myometry and flexibility and posture were evaluated, associating posture with pre defined muscle shortening categories. Changes were found in every spinal curve outline and posterior muscle chain in A Group and in cervical curve outline and decrease of the hip flexion angle in B Group. There was no statistic significance in the other analyzed variables
6

Zařízení pro demontáž pružiny a pro měření charakteristik pružin / Device for Spring Dismount and for Spring Characteristics Measurement

Mazura, František January 2020 (has links)
The presented master’s thesis is focused on the design of device for spring dismount from shock absorber and measuring of its spring characteristic. Then is the thesis focused on the design of device for measuring the spring characteristic of anti-roll and torsion bars. The introductory part of the thesis describes the basic distribution of springs and their properties and also design variants of wheel suspensions. Next part introduces devices already available on the market. The following sections aim to the design of stated devices itself, i.e. the description of their parts and functions, the definition of output parameters and stress-strain analysis. Both designs, including the analyses and technical drawings, were created in Autodesk Inventor software.
7

Flexural strength and shear bond strength of self-etching/self-adhesive resin luting agents

Adcook, Richard S. January 2009 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / Traditional resin luting agents generally have mechanical properties that are superior to the newer so-called “universal” self-etching/self-adhesive resin luting agents. However, recent reports indicate that some properties of these new luting agents have been improved, approaching those of the traditional etch and rinse resin luting agents. The objective of this study was to test some mechanical properties of four of these self-etching/self-adhesive resin luting agents [Maxcem Elite (ME), Multilink Automix (MA), RelyX Unicem (RU), SmartCem 2 (SC)] and compare them to a traditional etch and rinse resin luting agent [RelyX ARC (RA)] and a resin-modified glass ionomer luting cement [Fuji Plus (FP)], both of which have much longer histories of clinical success. By comparing the properties of the newer cements to the standards, it may be possible to determine how clinically successful the newer cements may be. The mechanical properties tested were flexural strength (FS) and shear bond strength (SBS). The FS test included making beams of each material, storing them in water for periods of time (24 hours and 90 days) and then performing a three-point bending test on a universal testing machine. The 90 day groups were thermocycled. The SBS test involved preparing human molar specimens, making flat dentin surfaces. Composite cylinders were fabricated, luted to the dentin surfaces with each of the materials tested, stored in water for periods of time (24 hours or 90 days), and then a knife edge shear test was performed on a universal testing machine. The 90 day groups were thermocycled. A Weibull-distribution survival analysis was performed. The results revealed significant differences in the FS of all materials tested at 24 hours. After 90 days and thermocycling, only SC and RA were not significantly different. At both time periods, FP had the lowest and MA the highest FS. The SBS results showed MA, RA, and RU to have the highest bond strengths; SC and ME the lowest at 24 hours. After 90 days and thermocycling, RA had significantly higher bond strength than all other groups; ME, FP and SC had the lowest. The self-etching/self-adhesive resin luting agents all performed at least as well as FP, with the exception of SC (SBS 24 hour). They did not all perform as well as RA, with the exception of SC (FS 90 day), MA (SBS 24 hour, FS 24 hour and 90 day), and RU (SBS 24 hour). The newer luting agents should expect to have clinical success, regarding flexural strength and shear bond strength, at least as good as resin-modified glass ionomer luting cements and approach the level of traditional etch and rinse resin luting agents.
8

Avaliação dos efeitos de dois programas de exercícios terapêuticos com e sem resistência elástica em pacientes com espondilite anquilosante / Effect of two exercise therapy program with and without elastic resistance in Ankylosing Spondylitis patients

Gallinaro, Andrea Lopes 17 August 2016 (has links)
Objetivo: Exercícios de mobilização são aplicados em pacientes com Espondilite Anquilosante (EA) para preservar e restaurar a mobilidade axial, no entanto, não há descrição na literatura, de um programa específico de reabilitação compreendendo apenas exercícios de mobilização com e sem a associação de exercícios com resistência elástica em pacientes com EA. Assim, foram avaliados os efeitos de dois programas de exercícios quanto a mobilidade, capacidade funcional, qualidade de vida e atividade de doença em pacientes com EA. Métodos: Cinquenta e cinco pacientes com EA, sedentários, com Índice Bath de atividade de doença da Espondilite Anquilosante (BASDAI) < 4 foram incluídos no estudo. Os pacientes com EA foram alocados ao acaso em três grupos, um grupo foi prescrito exercícios de mobilização (M), um com o programa de mobilização mais exercícios de resistência elástica (M+R) e um grupo controle sem exercícios (C). As sessões de exercícios foram realizadas em grupos, duas vezes por semana, por 16 semanas, e todas as sessões foram supervisionadas. Os grupos M e M+R realizavam 30 minutos de alongamentos e exercícios de mobilidade para coluna, membros superiores e inferiores. Depois do programa de mobilização, apenas o grupo M+R realizava mais 30 minutos de exercícios com resistência elástica. A mobilidade, qualidade de vida, atividade de doença e parâmetros de atividade funcional foram avaliados no início do programa e depois de 16 semanas por um avaliador cego. Resultados: No início do estudo, a média de idade dos pacientes (DP) era 48,2 anos ( ± 11,7); tempo de doença 18,4( ± 9,9) anos; BASDAI 2,2( ± 1,2); escore global Bath de espondilite anquilosante (BAS-g) de 4,2( ± 2,3) Índice funcional Bath (BASFI) de 3,6( ± 2,4) e Índice de mobilidade Bath (BASMI) de 4,6( ± 2,1). Comparando valores iniciais e após 16 semanas o grupo M mostrou uma melhora significante no Índice BASMI e o grupo M+R apresentou uma melhora significante no BASMI e na expansibilidade torácica. BAS-g, BASDAI e BASMI foram significantemente piores no grupo C. Não houve diferença significante entre os grupos M e M+R, mas foi encontrada diferença estatisticamente significante entre os grupos C e M+R nos índices BASDAI, ASDAS e BASFI a favor do grupo M+R. Conclusão: Os programas de exercícios terapêuticos foram seguros e efetivos. O programa de mobilização promoveu benefícios apenas nos parâmetros de mobilidade articular. Os pacientes que realizaram programa de exercícios com resistência elástica além de apresentarem melhora na mobilidade articular, apresentaram melhora da atividade de doença e função quando comparado aos controles no fim do tratamento / Objective: Mobility exercises are used in Ankylosing Spondylitis (AS) patients to preserve and restore axial mobility, but there are no data regarding a specific rehabilitation program that includes mobility alone and its association with elastic resistance exercises in AS patients with stable disease activity. So, we assessed the effects of two exercise programs in terms of mobility, functional capacity, quality of life and disease activity in AS patients. Methods: Fifty-five sedentary AS patients with a Bath Ankylosing Spondylitis Activity Index (BASDAI) <4 were included. The AS patients were randomly assigned into three groups, to receive a mobility exercise program (M), or mobility plus elastic resistance exercise program (M+R) or no exercise (C). The exercises group sessions were conducted twice per week for 16 weeks. This supervised program comprised 30 minutes of outdoor stretching and mobility exercises for the spine and limbs (M). After the mobility program, M+R group carry out more 30 minutes of elastic resistance exercises. The mobility, disease activity and functional parameters were evaluated at baseline and after 16 weeks, with the evaluator blinded to the treatment group. Results: At study entry, the patients had a mean (SD) age of 48,2 years ( ± 11,7), disease duration of 18,4( ± 9,9) years, BASDAI 2,2( ± 1,2), Bath AS Global score (BAS-g) 4,2( ± 2,3) Bath AS functional Index (BASFI) of 3,6( ± 2,4) and Bath AS Metrology Index (BASMI) of 4,6( ± 2,1). Comparing the baseline to 16 weeks, group M showed a significant improvement in BASMI and M+R group showed significant improvement in BASMI and chest expansion. BAS-g, BASDAI and BASMI was significantly worst in C group. No significant differences between M+R group and M group were perceived but there were significant differences in BASDAI, ASDAS and BASFI scores between C group and M+R group in favor of M+R group. Conclusion: Therapeutic exercises programs were effective and safe. The mobility exercises program promoted benefits only in joint mobility parameters. The exercise program with elastic resistance besides those benefits for joint mobility, also improved function and disease activity comparing to controls at the end of the program
9

Avaliação dos efeitos de dois programas de exercícios terapêuticos com e sem resistência elástica em pacientes com espondilite anquilosante / Effect of two exercise therapy program with and without elastic resistance in Ankylosing Spondylitis patients

Andrea Lopes Gallinaro 17 August 2016 (has links)
Objetivo: Exercícios de mobilização são aplicados em pacientes com Espondilite Anquilosante (EA) para preservar e restaurar a mobilidade axial, no entanto, não há descrição na literatura, de um programa específico de reabilitação compreendendo apenas exercícios de mobilização com e sem a associação de exercícios com resistência elástica em pacientes com EA. Assim, foram avaliados os efeitos de dois programas de exercícios quanto a mobilidade, capacidade funcional, qualidade de vida e atividade de doença em pacientes com EA. Métodos: Cinquenta e cinco pacientes com EA, sedentários, com Índice Bath de atividade de doença da Espondilite Anquilosante (BASDAI) < 4 foram incluídos no estudo. Os pacientes com EA foram alocados ao acaso em três grupos, um grupo foi prescrito exercícios de mobilização (M), um com o programa de mobilização mais exercícios de resistência elástica (M+R) e um grupo controle sem exercícios (C). As sessões de exercícios foram realizadas em grupos, duas vezes por semana, por 16 semanas, e todas as sessões foram supervisionadas. Os grupos M e M+R realizavam 30 minutos de alongamentos e exercícios de mobilidade para coluna, membros superiores e inferiores. Depois do programa de mobilização, apenas o grupo M+R realizava mais 30 minutos de exercícios com resistência elástica. A mobilidade, qualidade de vida, atividade de doença e parâmetros de atividade funcional foram avaliados no início do programa e depois de 16 semanas por um avaliador cego. Resultados: No início do estudo, a média de idade dos pacientes (DP) era 48,2 anos ( ± 11,7); tempo de doença 18,4( ± 9,9) anos; BASDAI 2,2( ± 1,2); escore global Bath de espondilite anquilosante (BAS-g) de 4,2( ± 2,3) Índice funcional Bath (BASFI) de 3,6( ± 2,4) e Índice de mobilidade Bath (BASMI) de 4,6( ± 2,1). Comparando valores iniciais e após 16 semanas o grupo M mostrou uma melhora significante no Índice BASMI e o grupo M+R apresentou uma melhora significante no BASMI e na expansibilidade torácica. BAS-g, BASDAI e BASMI foram significantemente piores no grupo C. Não houve diferença significante entre os grupos M e M+R, mas foi encontrada diferença estatisticamente significante entre os grupos C e M+R nos índices BASDAI, ASDAS e BASFI a favor do grupo M+R. Conclusão: Os programas de exercícios terapêuticos foram seguros e efetivos. O programa de mobilização promoveu benefícios apenas nos parâmetros de mobilidade articular. Os pacientes que realizaram programa de exercícios com resistência elástica além de apresentarem melhora na mobilidade articular, apresentaram melhora da atividade de doença e função quando comparado aos controles no fim do tratamento / Objective: Mobility exercises are used in Ankylosing Spondylitis (AS) patients to preserve and restore axial mobility, but there are no data regarding a specific rehabilitation program that includes mobility alone and its association with elastic resistance exercises in AS patients with stable disease activity. So, we assessed the effects of two exercise programs in terms of mobility, functional capacity, quality of life and disease activity in AS patients. Methods: Fifty-five sedentary AS patients with a Bath Ankylosing Spondylitis Activity Index (BASDAI) <4 were included. The AS patients were randomly assigned into three groups, to receive a mobility exercise program (M), or mobility plus elastic resistance exercise program (M+R) or no exercise (C). The exercises group sessions were conducted twice per week for 16 weeks. This supervised program comprised 30 minutes of outdoor stretching and mobility exercises for the spine and limbs (M). After the mobility program, M+R group carry out more 30 minutes of elastic resistance exercises. The mobility, disease activity and functional parameters were evaluated at baseline and after 16 weeks, with the evaluator blinded to the treatment group. Results: At study entry, the patients had a mean (SD) age of 48,2 years ( ± 11,7), disease duration of 18,4( ± 9,9) years, BASDAI 2,2( ± 1,2), Bath AS Global score (BAS-g) 4,2( ± 2,3) Bath AS functional Index (BASFI) of 3,6( ± 2,4) and Bath AS Metrology Index (BASMI) of 4,6( ± 2,1). Comparing the baseline to 16 weeks, group M showed a significant improvement in BASMI and M+R group showed significant improvement in BASMI and chest expansion. BAS-g, BASDAI and BASMI was significantly worst in C group. No significant differences between M+R group and M group were perceived but there were significant differences in BASDAI, ASDAS and BASFI scores between C group and M+R group in favor of M+R group. Conclusion: Therapeutic exercises programs were effective and safe. The mobility exercises program promoted benefits only in joint mobility parameters. The exercise program with elastic resistance besides those benefits for joint mobility, also improved function and disease activity comparing to controls at the end of the program
10

Evaluation of Mechanical Properties of Provisional Fixed Partial Denture PMMA Material Containing Alumina Nanofibers

Hajjaj, Maher Saeed, 1980- January 2012 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / Provisional restorative treatment is an essential part of fixed prosthodontics. Incorporation of adequately constructed provisional restorations will enhance the success rate of definitive restorations. Repairing or replacing failed provisional restorations is a concern for both clinicians and patients. The objective of this investigation was to study the effects of alumina nanofibers reinforcement on the mechanical properties of commercially available provisional fixed partial denture PMMA material. The hypothesis was that the addition of alumina nanofibers to commercially available PMMA resin will significantly increase its flexural strength, fracture toughness, and microhardness. Alumina nanofibers at 0.0 wt %, 0.5 wt %, 1.0 wt %, and 2.5 wt % were added to commercially available provisional fixed partial material (Jet Tooth Shade). A quaternary ammonium acetate dispersant (CC-59, Goldschmidt, Janesville, WI) was added to the acrylic monomer at 0.0 wt %, 1.0 wt %, 2.0 wt % and 5.0 wt % of the nanofiber weight (12 test groups, 1 control). Samples from each group were evaluated for flexural strength, flexural modulus, fracture toughness, and microhardness. The samples were tested after storing in distilled water for 24 hours and 7 days at 37ºC. Two-way analysis of variance (ANOVA) was used to test the effects of storage time and combinations of alumina nanofiber level and quaternary ammonium acetate dispersant level on the flexural strength, fracture toughness, and microhardness of the provisional PMMA resin. Pair-wise comparisons between groups were performed using Tukey’s multiple comparisons procedure to control the overall significance level at 5 percent. Three fracture toughness samples/group were randomly selected for Energy Dispersive Spectrometry (EDS) to qualitatively evaluate the dispersion of the fibers. The data obtained from this study showed that control sample values were in the acceptance range compared with previous research. The experimental samples did not reinforce the provisional resin in the flexural strength, modulus, fracture toughness, or microhardness. There are several factors may attribute to these results, such as poor bonding at the filler/matrix interface. The more homogeneous the mixture of PMMA and fiber, the stronger the acrylic resin. In fact, the presence of poorly bonded fibers, to which little load is transferred, can be almost equivalent to voids. In addition, as seen with EDS images, alumina nanofibers had a tendency to agglomerate. The use of a magnetic stirrer was not effective in physically separating nanofibers agglomerates. Direct dispersion of alumina nanofibers in methyl methacrylate monomer and quaternary ammonium acetate dispersant was not effective in separating the nanofibers into nano-scaled single crystals. The presence of fiber agglomerates acts as a structural defect that detrimentally affects the mechanical properties. Further studies are needed to evaluate the effectiveness of fibers, dispersion techniques, and coupling agents to enhance the mechanical properties of the provisional PMMA resin.

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