• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 93
  • 88
  • 56
  • 41
  • 11
  • 8
  • 7
  • 6
  • 6
  • 4
  • 2
  • 2
  • 2
  • 1
  • 1
  • Tagged with
  • 356
  • 356
  • 61
  • 57
  • 57
  • 48
  • 47
  • 47
  • 43
  • 40
  • 38
  • 36
  • 35
  • 34
  • 34
  • 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.
261

Motor Control in Adolescent ADHD

McIlveen-Brown, Emma 01 January 2011 (has links)
This thesis presents two manuscripts on motor control in ADHD. The first is a literature review that identifies fine motor control and postural stability as areas of robust abnormality in ADHD. Further, the review suggests that motor performance in adolescence has been understudied, and reveals a paucity of data on sex differences. The second study is an empirical assessment of postural control and fine motor skills in an adolescent ADHD sample, which investigated potential sex differences. This latter study revealed that males with ADHD were especially impaired on fine motor tasks, whereas females with the disorder were particularly impaired on tasks of postural stability. Deficits were most prominent under conditions where visual information was removed, across genders. It is unclear whether motor performance deficits are central features of ADHD or instead artifacts of overlap with Developmental Coordination Disorder and other psychiatric comorbidities.
262

Visual Discrimination of Speed-accuracy Tradeoffs

Young, Scott Jason 08 March 2011 (has links)
Although research has highlighted the importance of decisions when learning and performing motor actions, few studies have focused on individuals’ ability to choose between potential motor actions. To help bridge this gap, this thesis presents a series of studies that investigate the behaviour of able-bodied individuals when attempting to choose movements based on a speed-accuracy tradeoff. In the first study, a two-alternative forced-choice task was used to determine whether people are consistent with Fitts’s law when choosing the movement they perceive to require the least movement duration. Participants performed almost perfectly when clear visual cues were available—when one of the targets was closer, wider, or both. Contrary to Fitts’s law, however, participants showed a preference for closer targets when visual cues were not informative—when one of the targets was closer and narrower. This study demonstrates that motor decisions are not always optimal, especially when participants are naïve at the task. To determine the basis of individuals’ preference for closer targets, a pair of studies explored the relation between motor decisions, imagined movements, and visual perception. Participants showed a similar deviation from Fitts’s law when imagining movements—believing that movement duration increased with distance within the same index of difficulty. Participants did not behave similarly, however, in a perceptual version of the decision task. These results suggest that imagined movements and motor decisions are linked, but they are not always based on veridical representations of actual movement. To further probe the origin of individuals’ erroneous belief about movement duration, the final study of this thesis measured movement duration for movements made at speeds other than ‘as fast as possible’. Movements made at more natural movement speeds shared important similarities with decisions and imagined movements. This study suggests that the biases seen in naïve motor decisions might originate from participants considering movements for which they have more experience, such as target-directed movements made at a naturally-selected pace. Together, the findings presented in this thesis may help to identify the ways that motor decisions can deviate from optimal, suggesting how those decisions must change with practice to better accomplish a task.
263

Body function and activity after acute stroke : physiotherapy perspectives /

Sommerfeld, Disa, January 2004 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2004. / Härtill 5 uppsatser.
264

Kinetic forms of acute cognitive impairment measurement of variant behaviors in elderly hospitalized patients with acute cognitive impairment : a research project sumbitted in partial fulfillment ... for the degree of Master of Science (Gerontological Nursing) ... /

Sandine, Julie A. January 1993 (has links)
Thesis (M.S.)--University of Michigan, 1993.
265

Kinetic forms of acute cognitive impairment measurement of variant behaviors in elderly hospitalized patients with acute cognitive impairment : a research project sumbitted in partial fulfillment ... for the degree of Master of Science (Gerontological Nursing) ... /

Sandine, Julie A. January 1993 (has links)
Thesis (M.S.)--University of Michigan, 1993.
266

Desenvolvimento dos padrões fundamentais de movimento dos 7 aos 9.5 anos de idade: um estudo centrado nas trajetórias individuais / Development of fundamental movement patterns of children from 7 to 9.5 years of age: a study of individual trajectories

Fernando Garbeloto dos Santos 28 March 2014 (has links)
Estudos realizados com crianças após os 7 anos de idade não são claros em descrever se há efeito da idade e sexo no desempenho dos padrões fundamentais de movimento (PFM). Além disso, estes estudos se utilizaram do método transversal e focaram apenas as questões gerais do desenvolvimento, com pouca atenção para as diferenças individuais no desenvolvimento dos PFM. O presente estudo teve como objetivo investigar o desenvolvimento dos PFM de crianças dos 7 aos 9,5 anos de idade, analisando tanto as semelhanças e diferenças na trajetória das classes de movimento locomotor e manipulativo. A amostra constou de 31 crianças (64% meninos, 36% meninas) que foram acompanhadas dos 7 aos 9,5 anos de idade, com avaliações semestrais. Estas crianças fazem parte do estudo de crescimento e desenvolvimento motor longitudinal misto de Muzambinho-MG. As habilidades motoras e os critérios de avaliação utilizados foram baseados no TGMD-II. As crianças foram filmadas individualmente e posteriormente avaliadas com auxilio do software Kinovea. Para avaliar o desempenho optou-se por utilizar a soma dos critérios em cada uma das classes - locomoção e manipulação. A análise da mudança média foi realizada através da análise de variância de modelos mistos no software SAS. Para estimar as diferenças interindividuais na mudança intraindividual (estabilidade normativa) foram utilizados os testes de ? de Foulkes e Davis e o ? de Cohen, a partir do software LDA. Para identificar semelhanças e diferenças entre os sujeitos nas suas trajetórias foram utilizados os valores individuais do ? de Cohen e os canais modais de desempenho. Com base nessa informação foram formados os subgrupos: estabilidade com desempenho superior, intermediário e inferior, e com instabilidade ascendente e oscilatória. Os resultados médios apontam que com exceção das meninas na classe locomotora, após os 7 anos ocorre mudança no desempenho nos PFM, e há diferenças entre os sexos. Tanto o resultado do ? de Foulkes e Davis quanto o ? de Cohen indicaram estabilidade fraca, ou seja, houve heterogeneidade entre os sujeitos na mudança intraindividual ao longo da idade. Os valores individuais de estabilidade indicaram que há estabilidade boa para aproximadamente 57% das crianças na classe locomotora e 65% na manipulativa. Estes resultados permitiram inferir que mesmo após os 7 anos ocorre melhora na qualidade dos PFM, no entanto, cada classe de movimento e sexo tem particularidades. Além disso, apesar de haver heterogeneidade entre os sujeitos na mudança intraindividual ao longo dos 7 aos 9,5 anos, indicando que há iferenças na magnitude da mudança, foi possível discutir sobre a possibilidade de existir trajetórias diferenciadas / Studies of children older than 7 years old are not clear in describing whether there is effect of age and gender on performance of fundamental movement patterns (FMP). Moreover, these studies use cross-sectional method and focus only general development issues, with little attention to individual differences in the development of FMP. The present study aimed to investigate the development of PFM of children from 7 to 9.5 years old, analyzing both the similarities and differences in the trajectory of classes of locomotor and manipulative movement. The sample consisted of 31 children (64% boys, 36% girls) who were followed from 7 and 9.5 years old, through biannual evaluations. These children are part of the study of growth and mixed longitudinal motor development of Muzambinho-MG. The motor skills and evaluation criteria used were based on TGMD-II. The children were individually filmed and then evaluated with the aid of Kinovea software. To evaluate the performance it was chosen to use the sum of the criteria in each classes - locomotion and manipulation.The analysis of mean change was performed by analysis of variance of mixed models in SAS software. In order to estimate the interindividual differences in intraindividual change (stability normative), tests of ? de Foulkes and Davis and K de Cohen were used from the LDA software. To identify similarities and differences among the subjects in their trajectories, the individual values of ? de Cohen and performance channels were used. Based on this information the subgroups were formed: stability with upper, intermediate and lower performance and ascending and oscillatory instability. The average results indicate that, except girls in the locomotor class, after 7 years old, change occurs in FMP performance, and there are differences between the genders. Both ? de Foulkes and Davis and K de Cohen results indicate a poor stability, ie, over the age there was heterogeneity between the subjects in intra-individual change. The individual values of stability indicated that there is good stability for approximately 57% of children in locomotor class and 65% in manipulative class. These results showed that even after 7 years old, there is improvement in the quality of FMP, however, each class of movement and gender have their own particularities. Furthermore, although there is heterogeneity between the subjects in intra-individual change over the 7 to 9.5 years old, indicating that there are differences in the magnitude of the change, it was possible to discuss the chance of different trajectories
267

Preensão para escrita manual em universitários: diferentes tipos e sua relação com teste de destreza fina

Sime, Mariana Midori 26 November 2012 (has links)
Made available in DSpace on 2016-06-02T20:44:11Z (GMT). No. of bitstreams: 1 4777.pdf: 1113358 bytes, checksum: 05850a75e338f777f4be6dc851988132 (MD5) Previous issue date: 2012-11-26 / Financiadora de Estudos e Projetos / Handwriting is indispensable in daily work, in academia and in the assertion of personal identity, although it may seem less used today. In clinical practice of occupational therapy, children, adolescents and adults are often referred by presenting postural imbalances and compensatory motor alterations in various activities, including handwriting. During the execution of this task, there is the influence of motor predominant proximal or distal upper limb, depending on the type of grasp that is used in maintaining the pencil in his hand and the performance of fine manual dexterity. These aspects define the classification grasps in patterns: primitive grasp patterns, transitional grasps patterns and mature grasp patterns. This study was divided into two phases. In Phase I we identified through filming, the different types of grasps for handwriting and the prevalence of each type in 806 university students, aged over 18 years, right-handed, of both genders and without functional impairment in upper limbs. For Phase II, 40 subjects were randomly selected among those classified in the previous phase as grasps patterns mature and transition, 20 in each group. We applied the Purdue Pegboard Test, and analyzed the relationship between the manual dexterity and fine these grasp patterns. Data were statistically analyzed using descriptive prevalence (Phase I) and the Student's t-test for independent samples with a significance level of 0.05 (Phase II). The phase I results indicate a higher prevalence of mature grasps at the surveyed population, especially the dynamic tripod, supporting the literature. There was no significant difference between the performance of manual dexterity and the two patterns grasps used by adults for handwriting, suggesting that the functionality is independent of the grasp pattern. However, although there is no difference in functionality, it is known that the extensive use of the proximal muscles of the upper extremities can lead to pain, discomfort and diseases that, in the long term, can compromise the performance and quality of life of people who do. It is important to be aware of the importance of the involvement of occupational therapists in the school environment to stimulate and guide the most appropriate use of upper limb. Adult intervention is necessary in order to prevent or handle changes in functional performance between those seeking assistance with complaints of pain and discomfort in the upper limb. / A escrita manual é imprescindível no cotidiano do trabalho, no meio acadêmico e na afirmação da identidade pessoal, embora possa parecer menos utilizada atualmente. Na prática clínica da Terapia Ocupacional, crianças, adolescentes e adultos são frequentemente encaminhados por apresentarem desequilíbrios posturais e alterações motoras compensatórias em diversas atividades, entre elas a escrita manual. Durante a execução dessa tarefa, observa-se a influência motora predominante da região proximal ou da distal do membro superior, dependendo do tipo de preensão que é utilizado na manutenção do lápis na mão e da performance da destreza manual fina. Esses aspectos definem a classificação das preensões em padrões: padrão de preensão imatura, preensões de transição e padrão de preensão madura. O presente estudo foi dividido em duas fases. Na fase I identificou-se, por meio de filmagens, os diferentes tipos de preensão para escrita manual e a prevalência de cada tipo em 806 jovens universitários, maiores de 18 anos, destros, de ambos os gêneros e sem comprometimento funcional em membros superiores. Para a fase II, foram selecionados 40 sujeitos aleatoriamente, entre os classificados na fase anterior como padrão de preensão madura e de transição, sendo 20 em cada grupo. Foi aplicado o Purdue Pegboard Test, e analisada a relação entre a destreza manual fina e esses padrões de preensão. Os dados foram analisados estatisticamente pelo método descritivo de prevalência (fase I) e pelo Test-T de Student para amostras independentes com nível de significância de 0,05 (fase II). Os resultados da fase I apontam uma maior prevalência de preensões maduras na população pesquisada, principalmente da trípode dinâmica, corroborando com a literatura. Não houve diferença significativa entre o desempenho de destreza manual e os dois padrões de preensão utilizados por adultos para escrita manual, sugerindo que a funcionalidade independe do padrão de preensão. No entanto, apesar de não haver diferença na funcionalidade, é sabido que o intenso uso da musculatura proximal de membros superiores pode gerar dor, desconforto e doenças que, em longo prazo, podem comprometer o desempenho e qualidade de vida das pessoas que o fazem. Alerta-se para a importância da intervenção de terapeutas ocupacionais em ambiente escolar a fim de estimular e orientar o uso mais adequado do MS. Com adultos a intervenção se faz necessária visando prevenir complicações ou tratar alterações no desempenho funcional entre os que procuram atendimento com queixas de dores e desconfortos no membro superior.
268

Órteses em PVC para membro superior: utilização por terapeutas ocupacionais brasileiros, propriedades físicomecânicas e de toxicidade e desempenhos funcional e mioelétrico

Silva, Larissa Galvão da 13 December 2013 (has links)
Made available in DSpace on 2016-06-02T20:44:13Z (GMT). No. of bitstreams: 1 5737.pdf: 4169263 bytes, checksum: 1d29d7112d3353be7cf96c4b7043ae44 (MD5) Previous issue date: 2013-12-13 / Financiadora de Estudos e Projetos / Splints are devices whose function to stabilize, immobilize, prevent and correct deformities and maximizing the function and are currently manufactured in thermoplastic , especially low temperature. Was created a technique for making splints from thermoplastic PVC and high temperature due to the lack of scientific studies of the applicability of PVC for orthosis for the upper limb, proposed a study aiming to meet , compare and analyze aspects concerning the applicability of the materials and wrist splints made of two types of thermoplastics , the high temperature PVC and a low temperature Ezeform ®, commonly used for orthosis . The research involved the analysis of the factors for the use of materials, the analysis of the mechanical properties, thermal and toxicity of both materials and analysis of myoelectric and functional performances of subjects with and without orthoses on functional tests of manual dexterity . It was found that occupational therapists using PVC do this by being accessible in terms of cost of material and using Ezeform, the ease in modeling, PVC has high recyclability, and Ezeform, is more susceptible to deformation; functional performance volunteers with orthotics PVC and Ezeform is hindered significantly; especially with the PVC; the myoelectric activity of the upper fibers of the trapezius increases with both orthoses; especially with Ezeform of the biceps muscle did not change significantly and muscles radial extensor and flexor digitorum superficialis had the myoelectric amplitude decreased when the orthoses used and so that the orthosis with PVC myoelectric activity was lower. / As órteses são dispositivos que tem como função, estabilizar, imobilizar, prevenir e corrigir deformidades e maximizar a função e atualmente são confeccionadas em termoplásticos, especialmente os de baixa temperatura, moldados diretamente sobre o membro. Foi criada uma técnica de confecção em órteses a partir do termoplástico de alta temperatura PVC e devido à falta de estudos científicos da aplicabilidade do PVC para confecção de órteses de membro superior, propôs-se um estudo com o objetivo de conhecer, comparar e analisar os aspectos que envolvem a aplicabilidade e os materiais de órteses de punho confeccionadas em dois tipos de termoplástico, o de alta temperatura, PVC e um de baixa temperatura, Ezeform®, comumente usado para confecção de órteses. A investigação envolveu a análise dos fatores de utilização dos materiais, a análise das propriedades mecânicas, térmicas e toxicidade de ambos os materiais e a análise dos desempenhos funcional e mioelétrico dos sujeitos sem e com as órteses em testes funcionais de destreza manual. Foi verificado que os terapeutas ocupacionais que utilizam PVC o fazem por este ser acessível em termo de custo do material e os que utilizam Ezeform, pela facilidade na modelagem; o PVC possui alta reciclabilidade, e o Ezeform, é mais susceptível à deformações; o desempenho funcional dos voluntários com as órteses de PVC e de Ezeform é dificultado significativamente, especialmente com a de PVC; a atividade mioelétrica das fibras superiores do trapézio aumenta com ambas as órteses, especialmente com a de Ezeform, o músculo bíceps não sofreu alterações significativas e os músculos extensor radial e flexor superficial dos dedos tiveram a amplitude mioelétrica diminuída quando utilizadas as órteses, de modo que com a órtese de PVC a atividade mioelétrica foi menor.
269

Infant cognitive, motor and language development at 2 years of age following conception through assisted reproductive technologies (ART) relative to natural conception : findings from the prospective, longitudinal, cohort “3D-Study”

Balayla, Jacques 09 1900 (has links)
No description available.
270

The Predictive Value of Head Circumference Growth during the First Year of Life on Child Traits in Early Childhood

Dupont, Caroline 08 1900 (has links)
No description available.

Page generated in 0.0443 seconds