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Respostas fisiológicas e hiperinsuflação dinâmica induzidas por atividades de vida diária em pacientes com DPOC / Physiological responses and dynamic hyperinflation induced by differents activities of daily living in COPD patientsGulart, Aline Almeida 23 June 2015 (has links)
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Previous issue date: 2015-06-23 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The Glittre ADL-test (TGlittre) is used to functional limitations assessment in chronic obstructive pulmonary disease (COPD) patients and involves multiple tasks with upper limbs (UL) and lower limbs (LL). Recent studies have hypothesized that the task of moving objects on a shelf (task involving the UL, LL and trunk) is responsible for the high physiological requirement and the dynamic hyperinflation (DH) during the TGlittre. However, no studies have compared the physiological responses and DH among TGlittre s different tasks. In addition, little is known about the contribution of the UL isolated use in the shelf task. The study aimed to compare the physiological responses and DH induced by TGlittre s different tasks in patients with COPD. Secondly, aimed to isolate the UL activity with a modified protocol of the shelf task and compare with the original protocol. The study included patients with COPD (64±8 years, FEV1 39.8±16.4%pred) who performed TGlittre, modified Glittre ADL-test (TGlittre-M) and its fragmented tasks: to stand up and sit down (TSS), to climb up and down stairs (TSTAIRS), to walk on a flat ground (TWALK) and to move objects on a shelf with two shelves (TSHELF) and other with three shelves (TSHELF-M). Before and after TGlittre and tasks, inspiratory capacity (IC) was measured and the physiological responses was evaluated breath-by-breath during the tests. All variables were different at the end of the TGlittre and tasks compared to baseline (p<0.05). For main physiological variables, there were no significant
differences between TSHELF and TWALK (p>0.05), which were the tasks with higher physiological requirement, while the TSS represented the lowest physiological demand among TGltitre s tasks. DH did not differ between the fragmented TGlittre s tasks (p>0.05). In TGlittre, patients showed oxygen consumption, ventilatory demand, DH and dyspnea sensation higher than TGlittre-M (p<0.05), as well as TSHELF compared to TSHELF-M (p<0.05), except DH (p>0.05). The study results suggest that walking on a flat ground and moving objects on a shelf are the tasks that most influence the physiological requirement in TGlittre. The isolated UL activity contributes less in physiological requirement of TGlittre s shelf task than when associated with activities involving the LL and trunk. / O teste de AVD-Glittre (TGlittre) é utilizado para avaliação da limitação funcional de pacientes com doença pulmonar obstrutiva crônica (DPOC) e envolve múltiplas tarefas com uso de membros superiores (MMSS) e de membros inferiores (MMII). Estudos recentes hipotetizaram que a tarefa de movimentar objetos em uma estante (envolvendo MMII, MMSS e tronco) é responsável pelo elevado requerimento fisiológico e pela hiperinsuflação dinâmica (HD) durante o TGlittre. Entretanto, nenhum estudo comparou efetivamente as respostas fisiológicas e HD entre as diferentes tarefas do TGlittre. Além disso, pouco se sabe sobre a contribuição do uso isolado dos MMSS durante a tarefa da estante. O objetivo deste estudo foi comparar as respostas fisiológicas e a HD induzidas pelas diferentes tarefas do TGlittre em pacientes com DPOC. Secundariamente, objetivou-se isolar a atividade dos MMSS a partir da modificação do protocolo da tarefa da estante e comparar com o protocolo original. Participaram do estudo indivíduos com DPOC (64±8
anos, VEF1 39,8±16,4%prev), que realizaram TGlittre, teste de AVD-Glittre modificado (TGlittre-M) e suas tarefas fragmentadas: tarefa de levantar e sentar (TLS), tarefa de subir e descer degraus (TDEG), tarefa de caminhar no plano (TCAM), tarefa de movimentar objetos em uma estante com duas prateleiras (TEST) e tarefa de movimentar objetos em uma estante com três prateleiras (TEST-M). Antes e após o TGlittre e as tarefas, a capacidade inspiratória (CI) foi mensurada e as respostas fisiológicas foram avaliadas respiração a respiração durante os testes. Todas as variáveis foram diferentes no final do TGlittre e das tarefas em relação aos valores basais (p<0,05). Para as principais variáveis fisiológicas, não foram encontradas diferenças significantes entre TEST e TCAM (p>0,05), que foram as tarefas com maior sobrecarga fisiológica, enquanto a TLS representou a menor demanda fisiológica dentre as tarefas do TGltitre. A HD não diferiu entre as tarefas fragmentadas do TGlittre (p>0,05). No TGlittre os pacientes apresentaram consumo de oxigênio, demanda ventilatória, HD e sensação de dispneia maiores do que no TGlittre-M (p<0,05), assim como na TEST em relação à TEST-M (p<0,05), com exceção da HD (p>0,05). Os resultados deste estudo sugerem que caminhar no plano e movimentar objetos na estante são as tarefas que mais influenciam o requerimento fisiológico do TGlittre. O uso isolado dos MMSS contribui menos no requerimento fisiológico da tarefa da estante do TGlittre do que quando associado a atividades que envolvem os MMII e tronco.
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Desempenho motor de pacientes com acidente vascular cerebral em um jogo baseado em realidade virtualFernandes, Aline Braga Galv?o Silveira 19 December 2011 (has links)
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Previous issue date: 2011-12-19 / The Cerebral Vascular Accident (CVA) is the leading cause of motor disability in adults and elderly and that is why it still needs effective interventions that contribute to motor recovery. Objective: This study was aimed to evaluate the performance of stroke patients in chronic stage using a virtual reality game. Method: 20 patients (10 with injury to the left and 10 to the right side), right-handed, average age 50.6 ? 9.2 years, and 20 healthy subjects with average age of 50.9 ? 8.8, also right-handed participated. The patients had a motor (Fugl-Meyer) and muscle tone assessment (Ashworth). All participants made a kinematic evaluation of the drinking water activity and then underwent training with the table tennis game on XBOX 360 Kinect?, 2 sets of 10 attempts for 45 seconds, 15 minutes rest between sets, giving a total of 30 minutes session. After training the subjects underwent another kinematic evaluation. The patients trained with the right and left hemiparect upper limb and the healthy ones with the right and left upper limb. Data were analyzed by ANOVA, t Student test and Pearson correlation. Results: There was significant difference in the number of hits between the patients and healthy groups, in which patients had a lower performance in all the attempts (p = 0.008), this performance was related to a higher level of spasticity (r = - 0.44, p = 0.04) and greater motor impairment (r = 0.59, p = 0.001). After training, patients with left hemiparesis had improved shoulder and elbow angles during the activity of drinking water, approaching the pattern of motion of the left arm of healthy subjects (p < 0.05), especially when returning the glass to the table, and patients with right hemiparesis did not obtain improved pattern of movement (p > 0.05). Conclusion: The stroke patients improved their performance over the game attempts, however, only patients with left hemiparesis were able to increase the angle of the shoulder and elbow during the functional activity execution, better responding to virtual reality game, which should be taken into consideration in motor rehabilitation / O Acidente Vascular Cerebral (AVC), por ser uma das principais causas de incapacidade motora em adultos e idosos necessita de interven??es eficazes que contribuam para a recupera??o motora. Objetivo: Este estudo teve como objetivo avaliar o desempenho no uso de um jogo de realidade virtual em pacientes no est?gio cr?nico do AVC. M?todo: Participaram 20 pacientes (10 com les?o ? esquerda e 10 ? direita), destros, com idade m?dia de 50,6 ? 9,2 anos; e 20 saud?veis com idade m?dia de 50,9 ? 8,8 anos, tamb?m destros. Os pacientes fizeram uma avalia??o motora (Fugl-Meyer) e do t?nus muscular (Ashworth). Todos os participantes fizeram uma avalia??o cinem?tica da atividade de beber ?gua e em seguida realizaram o treino com jogo de t?nis de mesa do XBOX 360 Kinect?, em 2 s?ries de 10 tentativas de 45 s, com 15 min de descanso entre elas, totalizando 30 minutos de sess?o. Ap?s o treino, os indiv?duos foram submetidos ? outra avalia??o cinem?tica. Os pacientes treinaram com o membro superior hemipar?tico direito e esquerdo e os saud?veis com o membro superior direito e esquerdo. Os dados foram analisados pela ANOVA, pelo teste t`Student e de correla??o de Pearson. Resultados: Houve diferen?a significativa no n?mero de acertos entre o grupo de pacientes e saud?veis, no qual os pacientes apresentaram um desempenho inferior em todas as tentativas realizadas (p=0,008), estando esse desempenho relacionado a um maior n?vel de espasticidade (r= -0,44; p=0,04) e a um maior comprometimento motor (r= 0,59; p=0,001). Ap?s o treino, os pacientes com hemiparesia esquerda tiveram melhora na angula??o de ombro e cotovelo durante a atividade de beber ?gua, se aproximando do padr?o de movimento do membro superior esquerdo dos saud?veis (p<0,05), principalmente no momento de retornar o copo a mesa; j? os pacientes com hemiparesia direita n?o obtiveram melhora do padr?o de movimento em rela??o aos saud?veis (p>0,05). Conclus?o: Os pacientes com AVC melhoraram o desempenho ao longo das tentativas do jogo, no entanto, somente pacientes com hemiparesia esquerda conseguiram aumentar a angula??o do ombro e cotovelo durante a execu??o de atividade funcional, respondendo melhor ao jogo de realidade virtual, o que deve ser levado em considera??o na reabilita??o motora
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Qualidade de vida e funcionalidade de indivíduos amputados praticantes e não-praticantes de esportesZanona, Aristela de Freitas 29 September 2014 (has links)
Amputation is the traumatic or surgical loss of one or more limbs. Amputation causes physical, psychological and social damages which result in a decrease in quality of life (QV). Sports have been considered important tools for rehabilitation and social integration of amputees. The aim of this research was to assess quality of life, occupational performance, muscle strength and range of motion of adults with lower limb amputation athlete and non-athlete. The sample consisted of 45 amputees, divided into two groups: Athlete (GE, n = 23) and non-Athlete (GNE, n = 22). The collection was made in the cities of Curitiba, Aracaju and Maceió on December 2013, January and March of 2014. The tools used were The Short Form Health Survey Questionnaire (SF-36), the Canadian Occupational Performance Measure (COPM), the goniometry, and the Kendall´s muscle strength test. The tests Shapiro-Wilk, chi-squared and Mann-Whiney (p < 0.05) were used for statistical analysis. The quality of life variable showed significant differences in all eight areas tested: functioning, role limitations due to mental health emotional bodily pain, general health, vitality, social functioning, and between the groups, with the GE presented the best results, indicating better quality of life that the GNE. The Athlete group showed significant higher rates in occupational performance, muscle strength (flexor and extensor muscles of the hip) and range of motion (flexion and hip abduction). Therefore, it was concluded that there was a higher quality of life, occupational performance, muscle strength and range of motion for amputees who practice any sport. / Amputação consiste na perda ou remoção total ou parcial de um ou mais membros, de forma traumática ou cirúrgica, acarretando danos físicos, psicológicos e/ou sociais, que resultam em redução da qualidade de vida (QV). O esporte tem sido apontado como relevante ferramenta para a reabilitação e reintegração social de indivíduos amputados. O objetivo desta pesquisa foi analisar a qualidade de vida, desempenho ocupacional, força muscular e amplitude de movimento de adultos com amputação dos membros inferiores praticantes e não praticantes de esportes. A amostra foi constituída por 45 amputados, divididos em dois grupos: Esportista (GE, n = 23) e Não Esportista (GNE, n = 22). A coleta foi realizada em Curitiba, Aracaju e Maceió, no período de dezembro/2013, janeiro e março de 2014. Os instrumentos utilizados foram o questionário The Short Form Health Survey (SF-36), a Medida Canadense de Desempenho Ocupacional (COPM), a goniometria e o teste de força muscular de Kendall. Para a análise estatística, foram utilizados os testes de Shapiro-Wilk, qui-quadrado, T de Student e de Mann-Whitney (p < 0.05). Para a variável qualidade de vida, houve diferença significante em todos os oito domínios da avaliação SF-36: capacidade funcional, limitação por aspectos físicos, dor, estado geral de saúde, vitalidade, aspectos sociais, emocional e saúde mental entre os grupos, tendo o GE apresentado os melhores resultados, indicando melhor qualidade de vida que o GNE. O GE apresentou índices significantemente mais elevados de desempenho ocupacional, força muscular (para os músculos flexores e extensores do quadril) e amplitude de movimento (para flexão e abdução do quadril). Concluiu-se, portanto, que houve maior qualidade de vida, desempenho ocupacional, força muscular e amplitude de movimento para amputados que praticam alguma modalidade esportiva.
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Avaliação da eletroestimulação com biofeedback por eletromiografia de superfície em pacientes hemiplégicos / Evaluation of electrical stimulation with surface electromyographic biofeedback of hemiplegic patientsMaria Inês Paes Lourenção 07 March 2007 (has links)
O objetivo deste estudo foi avaliar o efeito do biofeedback (BIO) associado à terapia ocupacional (TO) e à estimulação elétrica funcional (FES) na espasticidade, movimento ativo e função do membro superior de pacientes hemiplégicos. Este estudo foi realizado na Divisão de Medicina de Reabilitação do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo. Cinqüenta e nove pacientes acometidos por acidente vascular cerebral participaram do estudo por um ano; 31 receberam TO+FES duas vezes por semana + BIO uma vez por semana e 28 receberam somente TO+FES duas vezes por semana. Os pacientes foram avaliados inicialmente, após 6 meses e após 1 ano através da Avaliação da Função Manual, do Teste de Destreza Manual Minnesota, do Teste de Amplitude de Movimento e da Escala de Ashworth modificada. TO+FES+BIO melhoraram significativamente a amplitude de movimento e função dos membros superiores após 6 meses e 12 meses, quando comparado com somente TO+FES. Ambos os grupos melhoraram significativamente a espasticidade, após 6 meses e 12 meses, com diferença não significante entre eles. O uso adicional do biofeedback mostrou efeito positivo em amplitude de movimento e recuperação da função do membro superior no grupo estudado e pode representar uma importante ferramenta para a reabiltação de pacientes hemiplégicos / The objective of this was to study the effect of biofeedback (BIO) associated to occupational therapy (OT) and functional electrical stimulation (FES) on spasticity, range of motion and upper extremity function of hemiplegic patients. The study took part at the Division of Rehabilitation Medicine of the Hospital das Clínicas of the University of São Paulo School of Medicine. Fifty-nine stroke patients were studied for one year; 31 received OT+FES twice a week + BIO once-a-week and 28 received only OT+FES twice-aweek. The patients were evaluated initially, after six months and after one year with the use of Manual Function Evaluation, Minnesota Manual Dexterity Test, Range of Joint Motion Test and Modified Ashworth Scale. OT+FES+BIO significantly improved range of motion and upper extremity function after 6 months and 12 months, compared to only OT+FES. Both groups showed significant improvement of spasticity, after 6 months and 12 months, with no significant difference between them. The additional use of BIO had a positive effect in range of motion and function recovery of upper extremity in the studied group and may represent an important therapeutic tool for stroke rehabilitation
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"Avaliação objetiva da isquemia de membros superiores: uso do dinamômetro isocinético" / Objective evaluation of upper limbs ischemia: use of isokinetic dynamometerLivio Nakano 13 September 2005 (has links)
O objetivo deste trabalho é apresentar o teste de esforço com o dinamômetro isocinético na avaliação objetiva da isquemia funcional da doença arterial oclusiva de membros superiores (DAOMS). Reuniu-se 23 pacientes com DAOMS unilateral, no grupo 1. Sete pacientes, sem DAOMS foram selecionados como o grupo controle (grupo 2). Os membros testados sem DAOMS do grupo 1 e do grupo 2 não apresentaram diferença estatística. A comparação de cada membro dos pacientes do grupo 1, com e sem DAOMS mostrou que os membros com DAOMS apresentaram desempenho significativamente menor que os membros sem lesão. Este teste permite a avaliação objetiva da limitação causada pela DAOMS de forma segura e objetiva / The objective of this work is to present the results of a stress test using an isokinetic dynamometer in patients with occlusive arterial disease in upper limbs (OADUL). Group 1 has 23 patients with unilateral subclavian occlusive disease. Seven patients, without OADUL, were included in a control group (group 2). No statistically difference was found in all parameters studied between limbs without OADUL in groups 1 and 2. So, each arm in group 1 (with and without OADUL) were tested. For all these parameters, the SOD limbs presented significantly lower values than the control limbs. This test gives an objective grade of limitation of the muscle function in patients with OADUL
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Advancing Rehabilitation Research Through Characterization of Conventional Occupational Therapy for Adult Stroke Survivors with Upper Extremity HemiparesisWengerd, Lauren Rachel January 2019 (has links)
No description available.
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Vascular Access: A Navigation MapGallo, Melissa A. 26 April 2021 (has links)
No description available.
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Développement et validation de contenu d’un programme de rééducation du membre supérieur post AVC en ergothérapieGuimond, Jean-François 10 1900 (has links)
Introduction. La thérapie axée sur la répétition de tâches fonctionnelles est préconisée pour la réadaptation du membre supérieur à la suite d’un accident vasculaire cérébral (AVC). Toutefois, aucun programme d’intervention n’opérationnalise l’ensemble des composantes clés du TOT en une démarche clinique valide de rééducation du membre supérieur post AVC en ergothérapie. Objectifs. 1) Établir la validité de contenu d’un programme de rééducation du membre supérieur post AVC en ergothérapie et 2) proposer un modèle logique de l’intervention qui fait consensus auprès d’experts et d’usagers. Méthodes. Un modèle logique d’un programme de rééducation du membre supérieur post AVC en ergothérapie a été développé, puis soumis à deux méthodes de recherche pour valider le contenu et obtenir un consensus d’experts et d’usagers : 1) Méthode Delphi : 14 experts ont examiné des capsules audiovisuelles illustrant le programme d’intervention et ont répondu à deux questionnaires pour valider les objectifs, la nature de l’intervention, les ressources, les activités et les extrants; 2) Technique de groupe nominal : six usagers ayant un vécu expérientiel de l’intervention ont généré les effets ciblés. L’indice de validité de contenu, deux indices d’accord interjuges et l’analyse de contenu ont été utilisés pour analyser les données. Résultats. Près de 93 % du contenu du programme de rééducation du membre supérieur post AVC en ergothérapie obtient un indice de validité satisfaisant, dont 82 % qui font consensus auprès d’experts et d’usagers dans un modèle logique révisé. Conclusion. Le modèle logique révisé propose une vision commune, quoiqu’incomplète, d’un programme de rééducation du membre supérieur post AVC en ergothérapie basé sur le TOT. Les activités et les extrants de l’évaluation devront faire l’objet de validation lors d’une phase subséquente d’implantation. Un transfert de connaissances sur les moyens pour favoriser le sentiment d’efficacité personnelle est aussi à prévoir pour réévaluer son rôle dans le programme d’intervention. / Background. Task-Oriented Training (TOT) is the recommended approach for upper extremity rehabilitation after a stroke. To date, no program have operationalized all the key components of TOT into a valid upper extremity clinical rehabilitation process post stroke in occupational therapy. Objectives. 1) To determine the content validity of an upper extremity rehabilitation program post stroke in occupational therapy and 2) to propose a logic model reaching consensus among experts and patients. Methods. A logic model of an upper extremity rehabilitation program post stroke in occupational therapy was developed and validated. Two research methods were used to validate the content and to achieve a consensus of experts and patients : 1) Delphi method : 14 experts examined audiovisual capsules of the intervention and completed two questionnaires to validate the objectives, the nature of the intervention, the resources, the activities and the outputs; 2) Nominal group technique : six patients with experience of the intervention generated the outcomes. The content validity index, two interrater agreement statistics and a content analysis were used for data analysis. Results. Almost 93 % of the content of the upper extremity rehabilitation program post stroke in occupational therapy obtained a satisfactory validity index, including 82 % reaching consensus among experts and patients in a revised logic model. Conclusion. The revised logic model now offers a common, albeit incomplete, vision of an upper extremity rehabilitation program post stroke based on the TOT in occupational therapy. Activities and outputs of the evaluation should be validated during a subsequent implementation phase. Knowledge translation on the modalities to promote self-efficacy is also to be planned to reassess its role in the intervention program.
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Patientens upplevelser och erfarenheter efter amputation av nedre extremiter : en litteraturöversikt / The patients experiences after amputation of the lower extremity : a literature reviewTsendjav, Densmaa, Karim, Hawar January 2022 (has links)
Bakgrund Amputation innebär att individen förlorar en liten eller stor del av kroppen som inte kan ersättas. Orsaken till amputation kan vara kärlsjukdomar, diabetes samt trauma. Amputation kan medföra fysiska och psykiska förändringar i patientens liv. Omvårdnad av dessa patienter kan vara komplex, sjuksköterskan har i sin profession en betydande roll i mötet med patienten. Syfte Syftet var att beskriva patienters upplevelser och erfarenheter efter amputation av nedre extremitet. Metod En icke systematisk litteraturöversikt genomfördes utifrån Fribergs metodbeskrivning. Sjutton originalartiklar inhämtades via databaserna PubMed och Cinahl Complete. Valda artiklar, kvalitetsgranskades och analyserades genom en integrerad analysmetod. Resultat Efter sammanställning av de nitton studierna identifierades två övergripande rubriker: Fysiologiska upplevelser och erfarenheter, psykologiska upplevelse och erfarenheter. varje kategori hade två underkategorier. Eftersom vi undersöker patientens upplevelser och erfarenheter efter amputation har vi valt att inkludera flera faktorer som påverkar patientens livskvalitet såsom sexualitet, smärta, depression och kroppsbild. Dessutom har vi även valt att inkludera benprotesens samt ADLs funktion som en faktor eftersom funktionaliteten är en viktig del av livskvaliteten. Slutsats Amputation leder till stor förändring i patientens liv, kan orsaka lidande i både den fysiska och psykiska hälsan, och ger svårigheter i patientens framtida liv. Det är viktigt som sjuksköterska att förstå och ha kunskap om den påfrestning som uppkommer efter amputation för att ge den specificerade vård som behövs i samarbete med andra yrkesgrupper för att möjliggöra att patienten ska kunna återgå till ett så normalt liv som möjligt. / Background Amputation means that the individual loses a small or large part of the body which cannot be replaced. The cause of amputation can be vascular disease, diabetes and trauma. Amputation causes physical and mental changes in the patient's life. Patient care can be complex, therefore the nurse has a significant role when interacting with patients who have undergone amputation. Purpose The purpose was to describe patients experiences after amputation of the lower extremity. Method Non-systematic literature review was performed based on Friberg's method description. Seventeen original articles were obtained via the databases PubMed and Cinahl Complete. Selected articles were quality reviewed and analyzed through an integrated analysis. Results After compiling the seventeen studies, two main categories were identified: Physiological experiences and experiences, psychological experience and experiences. Each category had two subcategories. Because we examine and study the patient's experiences after amputation, we have chosen to include several factors that affect the patient's quality of life such as sexuality, pain, depression and body image. In addition, we have also chosen to include the function of bone prosthesis and ADL as a factor because functionality is an important part of the quality of life. Conclusions Amputation leads to great change in the patient's life, which can cause suffering in physical and mental health and difficulties in the patient's future life. It is important as a nurse to understand and have knowledge of the stress that arises after amputation to provide the specified care needed in collaboration with other professions to enable the patient to return to a normal life as possible.
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Improvements and Validation of THUMS Upper Extremity : Refinements of the Elbow Joint for Improved Biofidelity / Utveckling och validering av THUMS övre extremitet : Förfining av armbågen för bättre biofidelitetSverrisdóttir, Kristín January 2019 (has links)
Introduction One out of five reported motor vehicle collision injuries occur to the upper extremities. Certain parts of The Total HUman Model for Safety (THUMS) lack validation against experimental data, including the elbow. The aim of this project is to refine and validate the elbow joint of THUMS, with focus on anatomical response of the elbow during axial impact applied to the wrist. Methods Internal contacts in the elbow were modified and new contacts assigned between bones and ligaments of the elbow. The posterior part of the radial- and ulnar collateral ligaments, and joint capsule was implemented to the model. Elasticmodulus of the cortical bones of the elbow was increased as well as the shell thickness of the humeral cortical bone. The updated model was validated against an experiment where an axial load was applied to the wrist of a female cadaver. The experimental resultant force in the wrist was then compared with the wrist force obtained from the simulations. Results The correlation between the experimental and simulation resultant wrist force for the updated model resulted in a CORA score of 0.882. This gave a 6.7% higher CORA score compared with the original model. Hourglass energy was reduced from 63.52% of internal energy to 0.78%. Energy ratio and contact energies indicated that the simulation was stable. Discussion Movement of elbow bones was assessed to be more anatomically correct, by accounting for the posterior ligament and elbow capsule support. The contact peak force in the humerus was lower and occurred earlier in the simulation in the updated model compared to the original. This is believed to be due to the reduced gap between the elbow bones after increasing the shell thickness of the humeral cortical bone. The model setup resembled the experiment in a good manner. Conclusion The upper extremity of THUMS was refined for improved biofidelity, with focus on the anatomical response of the elbow joint under an axial impact. However, further model improvements are suggested as well as extended validated against other experimental impact results. / Introduktion En av fem rapporterade krockskador med motorfordon förekommer i de övre extremiteterna. Vissa strukturer hos Total HUman Model for Safety (THUMS) saknar validering gentemot experimentell data, där armbågen är ett av dem. Syftet med detta projekt är att förfina och validera armbågsleden hos THUMS, med fokus på dess anatomiska respons under axiellt islag applicerad på handleden. Metod Interna kontakter i armbågen modifierades och nya kontakter tilldelades mellan ben och ligament. De posteriora delarna av kollateral ligament hos radius och ulna implementerades i modellen, så även armbågens ledkapseln. Elasticitetsmodulen hos de kortikala benen i armbågen höjdes och skalets tjocklek idet humerala kortikala benet utökades. Den uppdaterade modellen validerades mot ett experiment där en axiell belastning hade applicerats mot en kvinnlig kadavers handled. Den resulterande kraften i handleden från experimentet jämfördes sedan med erhållen kraft i handleden från simuleringarna. Resultat Korrelationen mellan den experimentella kraften och simulerade kraften hos den uppdaterade modellen resulterade i ett CORA-poäng på 0,882. Detta är en ökning med 6,7% jämfört med den ursprungliga modellen. Hourglassenergin reducerades från 63,52% av inre energi till 0,78%. Energiförhållandet och kontaktenergier indikerade stabil simulering. Diskussion Rörelsen av armbågens ben bedömdes vara mer anatomiskt korrekt, med hänsyn till stödet från de posteriora ligamentet och armbågens ledkapsel. Den maximala islagskraften i humerus minskade och uppträdde tidigare i simuleringen hos den uppdaterade modellen jämfört med originalet. Detta tros bero på reducerat avstånd mellan armbågens ben genom ökandet av skaltjockleken hos det humeralakortikala benet. Modelluppställningen motsvarade experimentets uppställning. Konklusion De övre extremiteterna av THUMS förfinades i syfte att förbättra biofideliteten. Fokus låg på armbågens anatomiska respons under ett axielltislag. Både ytterligare förbättringar av modellen och utökad validering mot andra experimentella islag rekommenderas. / Technology
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