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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.
51

Virtual reality platform modelling and design for versatile electric wheelchair simulation in an enabled environment.

Steyn, Nico. January 2014 (has links)
D. Tech. Electrical Engineering. / Developes a wheelchair motion platform whereby its user may be introduced into a simulated world. This simulated world is then required to be closely related to real world spaces that will be encountered by a disabled person using a wheelchair as a mobility aid. The wheelchair to be accommodated in the simulation environment may have multiple mechanical construct possibilities. The wheelchair used on the simulation platform needs to be driven by a combination of two wheels, as is generally found on manual and electric wheelchairs. The final objective was to design the simulation as closely as possible to the real world in order to use the VS-1 motion platform for architectural evaluations, possible training and general research in the field of simulators used in an enabled environment.
52

Pre- and postoperative evaluation of function and activity in patients with paralytic scoliosis /

Larsson, Eva-Lena January 2002 (has links)
Diss. (sammanfattning) Linköping : Univ., 2002. / Härtill 4 uppsatser.
53

Wheelchair positioning and pulmonary function in children with cerebral palsy

Barks, Lee. January 2007 (has links)
Dissertation (Ph.D.)--University of South Florida, 2007. / Title from PDF of title page. Document formatted into pages; contains 115 pages. Includes vita. Includes bibliographical references.
54

Academic accessibility mapping sociospatial perceptions by students who use wheelchairs /

Surbella, Kevin. January 2007 (has links)
Thesis (M.A.)--Kent State University, 2007. / Title from PDF t.p. (viewed March 28, 2007). Advisor: James A. Tyner. Includes bibliographical references (p. 84-88).
55

The Impact of Using an Obstacle Sensing System in the Power Wheelchair Training of Children with Disabilities

Manrique, Lisette M. January 2005 (has links)
Thesis (M.S.) -- Worcester Polytechnic Institute. / Keywords: obstacle sensing; power wheelchair; mobility training. Includes bibliographical references (p. 128-129).
56

Expanding smart wheelchair technology for users with severe disabilities

Philips, Gavin R. January 2008 (has links)
Thesis (M.S.)--University of Wyoming, 2008. / Title from PDF title page (viewed on August 5, 2009). Includes bibliographical references (p. 79-85).
57

Influência do design de cadeira de rodas manual nos aspectos biomecânicos, perceptivos e de desempenho na mobilidade de usuários e não usuários / Influence of manual wheelchair design on biomechanical, perceptual and performance aspects in the mobility of users and non-users.

Silva, Sara Raquel Martins da 21 February 2018 (has links)
Submitted by SARA RAQUEL MARTINS DA SILVA null (s.martinsto@gmail.com) on 2018-04-06T17:43:18Z No. of bitstreams: 1 Dissertação - SRMS FINAL.pdf: 1810532 bytes, checksum: ee53148cd6bc436a672cf4267b6e38fb (MD5) / Rejected by Lucilene Cordeiro da Silva Messias null (lubiblio@bauru.unesp.br), reason: Solicitamos que realize uma nova submissão seguindo as orientações abaixo: - Inserir na dissertação a ficha catalográfica e a cópia da ata de defesa pois são elementos obrigatórios em trabalhos acadêmicos. Agradecemos a compreensão on 2018-04-10T12:31:28Z (GMT) / Submitted by SARA RAQUEL MARTINS DA SILVA null (s.martinsto@gmail.com) on 2018-04-16T23:31:25Z No. of bitstreams: 1 Dissertação - SRMS.pdf: 1976076 bytes, checksum: 20e1c964477f0dde31353d71d6a70f15 (MD5) / Approved for entry into archive by Minervina Teixeira Lopes null (vina_lopes@bauru.unesp.br) on 2018-04-17T18:23:01Z (GMT) No. of bitstreams: 1 silva_srm_me_bauru.pdf: 1727852 bytes, checksum: d4efed332d84e1685b70e61eee1b42fd (MD5) / Made available in DSpace on 2018-04-17T18:23:01Z (GMT). No. of bitstreams: 1 silva_srm_me_bauru.pdf: 1727852 bytes, checksum: d4efed332d84e1685b70e61eee1b42fd (MD5) Previous issue date: 2018-02-21 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / A mobilidade é um aspecto essencial para a existência humana, e está diretamente relacionada ao desempenho ocupacional nas atividades de vida diária (AVD). Promover a locomoção em uma cadeira de rodas manual, exige que a função dos membros superiores seja aprimorada para uma tarefa da qual não foram preparados para executar. Diferentes aspectos do usuário, e do ambiente da tarefa podem influenciar no desempenho, esforço percebido, conforto e na satisfação da mobilidade em cadeira de rodas. A relação entre o design de cadeira de rodas manual e suas implicações à mobilidade, tem sido explorada de maneira insuficiente, em contextos nos quais as tarefas diárias de mobilidade dos usuários são pouco representativas. A maioria dos estudos realizados nesta abordagem, ocorrem em situações controladas de movimento retilíneo e velocidade constante. Esse estudo teve como objetivo principal avaliar de que forma diferentes designs de cadeira de rodas influenciam aspectos biomecânicos, perceptivos e o desempenho do usuário durante a execução de diferentes manobras básicas utilizando três modelos de cadeira de rodas diferentes e também a percepção de não usuários sobre aspectos práticos, estéticos e simbólicos do produto. Para registro dos dados biomecânicos foi utilizado o equipamento de Eletromiografia de superfície, a escala visual analógica e a escala de esforço percebido para o registro da percepção da dificuldade e de esforço. O teste de agilidade modificado foi utilizado para mensurar o desempenho dos participantes, e para o registro da percepção de não usuários sobre os dispositivos, foi utilizado a escala de Diferencial Semântico sobre dois modelos diferentes de cadeira de rodas. Dos resultados, destaca-se o padrão encontrado nas variáveis estudadas dos diferentes designs de cadeira de rodas, tanto na dificuldade relatada na execução de cada tarefa, no esforço percebido, no desempenho e na medição de atividade elétrica muscular, a cadeira de rodas monobloco garante o primeiro lugar, apresentando os melhores resultados, seguido da cadeira dobrável em X e por último a cadeira de rodas hospitalar. No que diz respeito ao estudo perceptivo de não usuários a cadeira de rodas motorizada ocupou o primeiro lugar nos aspectos de conforto, praticidade, beleza, mobilidade, segurança e inclusão, com exceção do aspecto prático referente a massa do produto. A análise da influência do Design dos dispositivos realizados nesse estudo propicia melhores condições de mobilidade para o usuário contribui para o desenvolvimento de produtos mais adequados a necessidades e expectativas dos usuários. / Mobility is an essential aspect of human existence, and it is directly related to occupational performance in activities of daily living (ADL). Promoting locomotion in a manual wheelchair requires the function of the upper limbs to be enhanced for a task they have not been prepared to perform. Different aspects of the user and the task environment can influence performance, perceived effort, comfort and the satisfaction of mobility in a wheelchair. The relationship between manual wheelchair design and its implications for mobility has been insufficiently exploited in contexts in which users' daily mobility tasks are poorly representative. Most of the studies performed in this approach occur in controlled situations of rectilinear motion and constant velocity. This study aimed to evaluate how different wheelchair designs influence biomechanical, perceptual and user performance during the execution of different basic maneuvers using three different wheelchair models and also the perception of non-users about aspects practical, aesthetic and symbolic of the product. In order to record the biomechanical data, we used the surface electromyography equipment, the visual analogue scale and the perceived exertion scale for recording the perception of difficulty and effort. The modified agility test was used to measure participants' performance, and to record the perception of non-users about the devices, the Semantic Differential scale was used on two different models of wheelchairs. The results highlight the pattern found in the studied variables of the different wheelchair designs, both in the difficulty reported in the execution of each task, in the perceived exertion, in the performance and in the measurement of muscular electric activity, the monobloc wheelchair guarantees the first place, presenting the best results, followed by the folding chair in X and finally the hospital wheelchair. Regarding the perceptive study of non-users, the motorized wheelchair occupied the first place in the aspects of comfort, practicality, beauty, mobility, safety and inclusion, with the exception of the practical aspect concerning the mass of the product. The analysis of the influence of the Design of the devices carried out in this study provides better mobility conditions for the user and can contribute to the development of products more suited to users' needs and expectations. / FAPESP: 16/05026-6 / CAPES: 458740/2013-6
58

Avaliação do desempenho anaeróbio de atletas de rugby em cadeira de rodas = Anaerobic performance evaluation of wheelchair rugby athletes / Anaerobic performance evaluation of wheelchair rugby athletes

Gouveia, Rafael Botelho, 1987- 27 February 2013 (has links)
Orientador: Edison Duarte / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Educação Física / Made available in DSpace on 2018-08-22T12:46:14Z (GMT). No. of bitstreams: 1 Gouveia_RafaelBotelho_M.pdf: 658553 bytes, checksum: dec2d5b58be7f6fa4097791a06743a51 (MD5) Previous issue date: 2013 / Resumo: Introdução: A prática de atividade física regular e a prática esportiva são consideradas algumas das atividades importantes no processo de reabilitação de pessoas com deficiência física. O Rugby em Cadeira de Rodas (RCR), modalidade desenvolvida para pessoas com deficiência física no mínimo de 3 membros, desde sua criação passou por constante evolução, tendo seu sistema de classificação funcional, regras e métodos de treinamento. Como modalidade coletiva o RCR tem suas particularidades que devem ser consideradas, dentre elas o desempenho do metabolismo anaeróbio dos atletas, que é um dos determinantes para o sucesso nesse tipo de modalidade. No entanto, não foi encontrado na literatura internacional ou nacional consultada, valores de referência. Logo o objetivo deste trabalho é estabelecer uma referência sobre o perfil de desempenho anaeróbio de atletas de RCR, através da avaliação do Wingate Anaerobic Test (WAnT). Metodologia: Foram coletados os dados de Potência pico, média e % de Fadiga do Wingate Anaerobic Test de 10 atletas com lesão na medula espinhal, com cargas relativas a cada deficiência envolvida. Resultados: Foram encontrados para atletas da classe 0.5 valores de Ppico de 44,12 - 72,40 Watts (W), Pmédia de 27,16 - 54,78 W e %F de 46,88 - 77,29%. Para atletas 2.0 a Ppico encontrada foi de 208,22 - 248,11W, a Pmédia de 97,63 - 120,81W e o %F de 69,48 - 77,29%. Para os atletas 2.5 a Ppico de 214,93 - 272,70 W, a Pmédia de 156,49 - 170,54 W e o %F de 52,63 - 58,41%. O único atleta 3.0 avaliado apresentou Ppico de 327,83 W, Pmédia de 174,82 e %F de 69,08%. Conclusões: Os atletas avaliados têm níveis de potência pico e média próximos dos seus pares de classificação funcional, como constatado na literatura consultada, mas apresentaram valores maiores no %F, o que indica uma necessidade de treinamento da capacidade anaeróbia de trabalho / Abstract: Introduction: The regular physical activity and sports pratice are considered important in the rehabilitation process for disabled people. The Wheelchair Rugby (WR) is a sport developed for people with physical disability in at least 3 limbs, has since its creation passed for development in its classification rules, game rules and training methods. As a team sport, the WR has it is peculiarities that should be considered, as the anaerobic performance, a determinant factor for the sport. However, it's not found in the literature a standard profile about the anaerobic performance of WR athletes for the training process. Therefore the aim of this study was to establish a reference about the anaerobic performance profile of WR athletes through the Wingate Anaerobic Test. Methods: 10 athletes with spinal cord injury were evaluated with the WAnT, with relative loads for each subject and each neurological level, according the literature, with the loan relative of each deficiency involved. Results: Were found to 0.5 athletes PP values from 44.12 to 72.40 W, MP from 27.16 to 54.78 W and %F 46.88 to 77.29%. For the 2.0 athletes was found PP from 208.22 to 248.11W, MP from 97.63 to 120.81W and %F from 69.48 to 77.29%. For the 2.5 athletes PP from 214.93 to 272.70 W, MP from 156.49 to 170.54 W and %F from 52.63 to 58.41%. The only 3.0 athlete evaluated showed PP of W 327.83, MP of 174.82 and %F of 69.08%. Conclusions: The evaluated athletes have peak power and mean power levels similar to their functional classification pairs, but they presented higher values in the %F, so the necessity of training in the anaerobic capacity is indicated / Mestrado / Atividade Fisica Adaptada / Mestre em Educação Física
59

[en] WHEELCHAIRS: A PROJETUAL AND PRESCRIPTIONAL BOARDING / [pt] CADEIRA DE RODAS: UMA ABORDAGEM PROJETUAL E PRESCRICIONAL

CARLOS MAURICIO DA COSTA RAMOS 02 June 2004 (has links)
[pt] Esta pesquisa está inserida no universo do deficiente físico e todos que sejam capazes de influenciar, positiva e negativamente o uso da cadeira de rodas. Os padrões adotados por fabricantes no Brasil são independentes da avaliação patológica dos diversos níveis de lesões e da observância das necessidades individuais ou segmentadas deficientes físicos usuários de cadeiras de rodas impossibilitando a correta prescrição pela falta de ajustes de postura, causando a dissonância entre produto/usuário. padrões, baseados no design e dimensões de modelos estrangeiros, decorrem do custo e o tempo para o desenvolvimento de um projeto de cadeira de rodas autêntico e patenteável e pela ausência de representação no mercado interno. As fábricas nacionais não podem mais ignorar a contribuição tecnológica necessária para definir o escopo projetual de produtos disponibilizados em nossas instituições de pesquisa e mais adequadas a condição finaceira, social e ergonômica de nossa população. / [en] This research is inserted in the universe of the disabled and all related subjects who are capable to influence positively or negatively the wheelchair´s usage. The standards adopted my manufacturers in Brazil are taken apart from the pathological evaluation of the different levels of injuries and the perception of individual or segmented needs of wheelchair users, disabling the correct (lapsing) for the lack of adjustment, cause a distortion between user and product. Standards, based on design and dimensions of foreign models, elapse from the considered cost and the time for the development of an authentic and patentable (feasible) wheelschair project and for the lack of representation in the national market. Domestic factorys can´t ignore anymore the technological contribution, necessary for definition of the project scope of available products in our research institutions, more adjusted to the financial, social and ergonomic conditions of our population.
60

Design of Wheelchair Robot for Active Postural Support (WRAPS) for Users with Trunk Impairments

Ophaswongse, Chawin January 2021 (has links)
People with severe trunk impairments cannot maintain or control upright posture during sitting or reaching out with the upper body. Passive orthoses are clinically available to support the trunk and promote the use of upper extremities in this population. However, these orthoses only rigidly position the torso on a wheelchair but do not facilitate movement of the trunk. In this dissertation, we introduce a novel active-assistive torso brace system for upperbody movements by a subject while seated. We have named this system as Wheelchair Robot for Active Postural Support (WRAPS). We propose designs of two robots, one for the pelvis and the other for the trunk. Each of the two devices has a parallel chain architecture to accommodate the range of motion (ROM), respectively for the pelvic and thoracic segments. The first thoracic robot was designed for the upper trunk motion relative to the pelvis. It has a 2[RP]S-2UPS architecture which provides four degrees-of-freedom (DOFs) to the end-effector placed on the upper trunk. The second is a pelvic robot which is designed to orient the pelvic segment relative to the seat. It has a 3-DOF [RRR]U-2[RR]S architecture, coupled with translation to accommodate pelvic movements relative to the seat. These robot architectures are synthesized based on human movement data. WRAPS can modulate the displacement of both the pelvic and the thoracic segments. Additionally, the forces can be applied on the torso through the end-effectors of these robots. Each of the robot prototypes was evaluated with able-bodied subjects to assess the device wearability, kinematic performances, and control system.

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