The diploma thesis "Development of the methodology of correct posture and its verification in drama lessons within the school educational program" connects the correct posture with the teaching of dramatic education. In the area of posture, however, it is not as a theoretical discourse of what is known to every teacher, as is proved by this quote dating back over four decades: "The positive influence of proper body posture on healthy growth and development of all organs and the development of their functions is stated by medical literature and confirmed by everyday experience." The aim of the thesis is to examine the problems through practice, in particular by connecting with the already established subject and also the way of teaching in other subjects - dramatic education. The theoretical part is divided into two areas: correct posture and dramatic education. Both of them are first defined and put into context, then I deal with selected aspects that are relevant to this work. In the practical part I define the circumstances and conditions of creation and verification of the methodology of correct posture verified in drama lessons. The ensemble then combines methodological validation and rehearsing the fairytale The Princess and the Pea and the poems A Short Fairytale on Beet and Gingerbread...

Les atteintes posturales sont des conséquences connues du vol spatial. Un des facteurs de stabilité orthostatique et postural est le tonus musculaire, qui chute en microgravité. Les études sur les effets cardiovasculaires, neuromusculaires et posturaux de la microgravité sont nombreuses ; pourtant, le rôle des troubles neuromusculaires et cardiovasculaires dans l’atteinte orthostatique et posturale reste peu connu. Notre but était d’étudier des altérations vasculaires et neuromusculaires induites par la microgravité, ainsi que les liens entre eux. Nos études chez l’homme comprenaient un vol spatial de 6 mois, un alitement antiorthostatique de 21 jours et une immersion sèche de 3 à 5 jours. Ces conditions diffèrent par le niveau de stimulation d’appui. L'état cardiovasculaire a été évalué par des tests orthostatiques, neuromusculaire - par myotonométrie et la stabilité posturale - par stabilométrie. Notre travail montre qu’un vol de longue durée induit des troubles bien plus profonds que la microgravité simulé plus courte. De plus, l'immersion sèche induit des troubles plus graves que l'alitement, malgré sa durée plus courte. Nos données suggèrent que c'est la décharge d’appui qui définit la profondeur des perturbations. Le rôle principal de la diminution du tonus des muscles posturaux est mis en avant. Cette diminution se produit par voie réflexe par diminution d’afferentation des zones d’appui. Elle pourrait être responsable de l’intolérance orthostatique via la diminution de l'efficacité de la pompe musculaire favorisant le retour veineux, et de l’instabilité posturale - via l'augmentation des seuils de recrutement des motoneurones posturaux. / Postural and orthostatic impairment are both acknowledged consequences of spaceflight. One of the factors for orthostatic and postural stability is muscle tone, which decreases within the onset of microgravity. Studies of cardiovascular, neuromuscular and postural effects of microgravity are numerous ; yet the role of neuromuscular and vascular disorders in orthostatic and postural impairment remains unclear. We aimed to investigate vascular and neuromuscular alterations induced by microgravity, as well as their relationships. We studied healthy men exposed to 6-mo spaceflight, 21-day head-down bedrest and 3-to 5-day dry immersion. These conditions differ by the level of support unloading. Cardiovascular state was assessed by orthostatic tests, neuromuscular - by myotonometry, postural stability - by stabilometry. We found that long-term spaceflight induced much deeper disorders than relatively short-term modeled microgravity. Furthermore, immersion induced more severe disorders than bedrest, despite its shorter duration. Our data, along with literature, suggest that it is the support unloading that defines the depth of disturbances. The leading role in development of postural disorders under gravitational unloading belongs to decrease in postural muscle tone. This decrease occurs mainly by a reflex mechanism (decrease in support afferentation). It might be responsible for orthostatic impairment - via decrease in the efficiency of muscle pump promoting venous return, and for postural impairment - via increase in recruitment thresholds of postural motoneurons.

L’objectif de ce travail est de déterminer l’influence des réductions de mobilité ostéo-articulaire passive et active sur la capacité posturo-cinétique. La réduction de mobilité passive est analysée à travers un mouvement d’élévation des membres supérieurs à vitesse maximale au cours duquel seront mesurés des indices électromyographiques (Tibial antérieur, Soléaire) et biomécaniques (plateforme de force, accéléromètre). La réduction de mobilité active est étudiée à partir d’un examen posturographique combiné à un mouvement de compression d’une barre dynamométrique et à l’enregistrement de la cinématique respiratoire. L’analyse de la composante passive révèle que, dès 50% de perte de mobilité au niveau de la région cervicale, la capacité posturo-cinétique (CPC) est perturbée. Le blocage passif des articulations des chevilles et du rachis cervical semble davantage réduire la CPC que celui des genoux ou du rachis lombaire. L’étude de la composante active montre que l'augmentation de la tension musculaire active le long du tronc est susceptible de perturber l'équilibre postural, mais uniquement lorsqu'elle dépasse un certain niveau. Ainsi les deux composantes, passive et active, de la mobilité ostéo-articulaire, paraissent chacune jouer un rôle dans la capacité à compenser les perturbations associées au maintien postural ou à l’exécution du mouvement. / The aim of this study was to determine the influence of passive and active components of osteoarticular mobility on the capacity posturo-kinetic. The passive component was analyzed through a paradigm of upper limb elevation at maximum velocity, during which electromyographic (Tibialis anterior, soleus) and biomechanical (force platform, accelerometer) parameters were measured. The active component was studied from an experimental paradigm associating a posturaphic examination with a bimanual compression of a dynamometric bar. Results analysis showed that the posturo-kinetic capacity (PKC) was reduced when the loss of mobility exceeded 50% at the neck level. Passively blocking the ankle joints and the cervical spine seemed more likely to reduce the PKC than blocking the knee or the lumbar spine. The study of the active component showed that the increase in active muscle tension along the trunk may impair body balance, but only when it exceeds a certain level. Thus the two components, passive and active, of the osteoarticular mobility, appeared as significant factors in the ability to compensate for the disturbances associated with postural maintenance or movement execution.

L’éducation spécialisée est confrontée à l’impasse d’articuler les logiques contradictoires. Cet obstacle ainsi que le malaise inhérent à la subjectivité du métier d’éducateur génère de la souffrance qui se traduit par une posture de toute-puissance. La dimension émancipatrice de la relation éducative est étouffée sous les phénomènes de stigmatisation et d’aliénation renforcés par la posture de guidage. Ces difficultés sont repérables au sein des dispositifs d’analyse de la pratique à travers la prégnance de la résolution de problèmes, des entraves à la problématisation et des difficultés à articuler théorie et pratique. Le travail de problématisation vise à explorer les effets de l’usage des incursions théoriques et de la PAC (problématisation par l’articulation des contraires) dans un dispositif d’APP dans lequel l’intervenant adopte une posture clinique. Il s’inscrit dans un cadre théorique mettant en tension l’évaluation, la problématisation et l’émancipation. Cette thèse s’intéresse aux processus en jeu dans la relation éducative, entre le clinicien et le sujet, le sujet et les usagers, en mimésis dans les dynamiques de changement. En ce sens, la méthode clinique s’est imposée pour les rendre intelligibles. L’analyse des entretiens renforce notre hypothèse selon laquelle l’usage des incursions théoriques et de la PAC favorise la problématisation et l’émancipation des sujets tant sur le plan professionnel que personnel. Un phénomène de ricochet a été observé. Les résultats montrent l’importance de l’identification à la posture du clinicien comme mise en scène de l’articulation des contradictions et incarnation du savoir, ainsi qu' un remaniement du rapport au savoir. / Specialized education has to face the difficulty linked to the articulation of contradictory forms of logics. This complexity as well as the uneasiness related to the subjective implication inherent to the profession of educator cause suffering, which leads to an attitude of omnipotence. The emancipating dimension of the educating relationship is neutralized because of phenomens of stigmatisation and alienation. Those difficulties can be distinguished through the devices of analysis of practices, by solving issues, going beyond the obstacles to the process of problematization and beyond the complexity related to the articulation between theory and practice. Adressing those issues aims at exploring the impact of the use of theoretical incursions and of the PAC (problematization through the coordination of contradictory notions) with the help of the APP device, which will be used by the participant in order to adopt a clinical attitude. This work is accomplished within a theoretical framework articulating the evaluating, problematizing and emancipating parts. The clinical method aims at making them intelligible. The analysis of interviews strengthens our hypothesis: using the theoretical incursions and the PAC method is positive in order to problematize and emancipate the patients, as well in terms of professional as personal development. A ripple effect has been observed. The results show how important is the process of identification to the attitude of the clinician, representing thus a way to stage the articulation of contradictory notions as well as the personification of knowledge, and a reorganization of our relationship to knowledge.

Seating is an integral part of work environment. When people are at work, they often sit in chairs for long periods of time without changing postures. This results in reduced blood circulation in the body, especially in the buttock-thigh area causing muscle fatigue, pain and discomfort. Ergonomically designed task chairs adopt a passive approach to guiding people into better postures by providing adjustability inside the chair. However most people do not adjust their chairs because they fail to sense the need for changing posture. They are left to sensing the need to change posture through guesswork or extreme discomfort. This thesis proposes a new system to address this problem by sensing static posture in a seated person with the use of electronic sensors embedded in the seat, and by providing interactive feedback to static posture via sound, light and tactile channels. The new technology is an sensing-feedback mechanism embedded in a chair, that allows people to receive postural information and make body adjustments periodically to avoid pain and discomfort caused by prolonged seating.The feedback mechanism was tested with four subjects to determine its efficacy in generating posture change through pressure relief and user feedback was gathered in order to design the final prototype.

No description available.

La scoliose idiopathique (SI) est une déformation tridimensionnelle (3D) de la colonne vertébrale et de la cage thoracique à potentiel évolutif pendant la croissance. Cette déformation 3D entraîne des asymétries de la posture. La correction de la posture est un des objectifs du traitement en physiothérapie chez les jeunes atteints d’une SI afin d’éviter la progression de la scoliose, de réduire les déformations morphologiques et leurs impacts sur la qualité de vie. Les outils cliniques actuels ne permettent pas de quantifier globalement les changements de la posture attribuables à la progression de la scoliose ou à l’efficacité des interventions thérapeutiques. L’objectif de cette thèse consiste donc au développement et à la validation d’un nouvel outil clinique permettant l’analyse quantitative de la posture auprès de personnes atteintes d’une SI. Ce projet vise plus spécifiquement à déterminer la fidélité et la validité des indices de posture (IP) de ce nouvel outil clinique et à vérifier leur capacité à détecter des changements entre les positions debout et assise. Suite à une recension de la littérature, 34 IP représentant l’alignement frontal et sagittal des différents segments corporels ont été sélectionnés. L’outil quantitatif clinique d’évaluation de la posture (outil 2D) construit dans ce projet consiste en un logiciel qui permet de calculer les différents IP (mesures angulaires et linéaires). L’interface graphique de cet outil est conviviale et permet de sélectionner interactivement des marqueurs sur les photographies digitales. Afin de vérifier la fidélité et la validité des IP de cet outil, la posture debout de 70 participants âgés entre 10 et 20 ans atteints d'une SI (angle de Cobb: 15º à 60º) a été évaluée à deux occasions par deux physiothérapeutes. Des marqueurs placés sur plusieurs repères anatomiques, ainsi que des points de référence anatomique (yeux, lobes des oreilles, etc.), ont permis de mesurer les IP 2D en utilisant des photographies. Ces mêmes marqueurs et points de référence ont également servi au calcul d’IP 3D obtenus par des reconstructions du tronc avec un système de topographie de surface. Les angles de Cobb frontaux et sagittaux et le déjettement C7-S1 ont été mesurés sur des radiographies. La théorie de la généralisabilité a été utilisée pour déterminer la fidélité et l’erreur standard de la mesure (ESM) des IP de l’outil 2D. Des coefficients de Pearson ont servi à déterminer la validité concomitante des IP du tronc de l’outil 2D avec les IP 3D et les mesures radiographiques correspondantes. Cinquante participants ont été également évalués en position assise « membres inférieurs allongés » pour l’étude comparative de la posture debout et assise. Des tests de t pour échantillons appariés ont été utilisés pour détecter les différences entre les positions debout et assise. Nos résultats indiquent un bon niveau de fidélité pour la majorité des IP de l’outil 2D. La corrélation entre les IP 2D et 3D est bonne pour les épaules, les omoplates, le déjettement C7-S1, les angles de taille, la scoliose thoracique et le bassin. Elle est faible à modérée pour la cyphose thoracique, la lordose lombaire et la scoliose thoraco-lombaire ou lombaire. La corrélation entre les IP 2D et les mesures radiographiques est bonne pour le déjettement C7-S1, la scoliose et la cyphose thoracique. L’outil est suffisamment discriminant pour détecter des différences entre la posture debout et assise pour dix des treize IP. Certaines recommandations spécifiques résultents de ce projet : la hauteur de la caméra devrait être ajustée en fonction de la taille des personnes; la formation des juges est importante pour maximiser la précision de la pose des marqueurs; et des marqueurs montés sur des tiges devraient faciliter l’évaluation des courbures vertébrales sagittales. En conclusion, l’outil développé dans le cadre de cette thèse possède de bonnes propriétés psychométriques et permet une évaluation globale de la posture. Cet outil devrait contribuer à l’amélioration de la pratique clinique en facilitant l’analyse de la posture debout et assise. Cet outil s’avère une alternative clinique pour suivre l’évolution de la scoliose thoracique et diminuer la fréquence des radiographies au cours du suivi de jeunes atteints d’une SI thoracique. Cet outil pourrait aussi être utile pour vérifier l’efficacité des interventions thérapeutiques sur la posture. / Idiopathic scoliosis (IS) is characterized by three-dimensional (3D) deformity of the spine and rib cage which can increase during growth. The morphologic changes of the trunk result in posture asymmetries. Correction of posture is an important goal of physiotherapy interventions among persons with IS to prevent scoliosis progression, to reduce morphologic deformities and their impact on quality of life. Currently, there are no tools that globally quantify changes in posture that may be attributable to scoliosis progression or to treatment effectiveness, that are usable in a clinical setting. The objective of this thesis was thus to develop and validate a new clinical quantitative posture assessment tool among persons with IS. More specifically, this project aims to determine reliability and concurrent validity of posture indices (PI) of this new tool and to verify their capacity to detect changes between standing and sitting positions. We conducted a literature review and selected 34 PI representing frontal and sagittal alignment of the different body segments. We constructed a software-based quantitative posture assessment tool to calculate different PI (angular and linear measurements). The software has a user-friendly graphical interface and allows calculation of PI from a set of markers selected interactively on digital photographs. For the reliability and validity studies, standing posture of 70 participants aged 10 to 20 years old with IS (Cobb angle: 15º to 60º) was assessed on two occasions by two physiotherapists. Markers placed on several bony landmarks as well as natural reference points (eyes, ear lobe, etc.) were used to measure the PI from photographs with the 2D tool and to calculate 3D PI obtained from trunk reconstructions with a surface topography system. Frontal and sagittal Cobb angles and trunk list were also calculated on radiographs. The generalizability theory was used to estimate the reliability and standard error of measurement (SEM) of PI of the 2D tool. Pearson correlation coefficients served to estimate concurrent validity of the 2D trunk PI with corresponding 3D PI and with those obtained from radiographs. Fifty participants were assessed for the comparative study between standing and sitting positions. We compared the average values of each PI in standing and long sitting positions using paired t-tests. Our results show a good level of reliability for the majority of PI of the 2D tool. Correlation between 2D and 3D PI was good for shoulder, scapula, trunk list, waist angles, thoracic scoliosis and pelvis but fair to moderate for thoracic kyphosis, lumbar lordosis and thoracolumbar or lumbar scoliosis. The correlation between 2D and radiograph measurements was good for trunk list, thoracic scoliosis and thoracic kyphosis. Our tool can detect differences between standing and sitting posture for ten out of thirteen PI. A few recommendations specific to this work are: camera height should be adjusted according to the subject’s height; training of judges is important to maximize accuracy in placement of markers; and measurement of sagittal vertebral curves may be facilitated by using markers mounted on pins. In conclusion, the tool developed in this thesis has good psychometric properties to evaluate posture. This tool should contribute to clinical practice by facilitating the analysis of standing and sitting posture. This tool may also be a good alternative to monitor thoracic scoliosis progression in a clinical setting and may contribute to a reduction in the use of x-rays in the follow-up of youths with thoracic IS. It may also be useful to verify the effectiveness of therapeutic interventions on posture.

Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal

Made available in DSpace on 2016-12-06T17:07:12Z (GMT). No. of bitstreams: 1 versao_final_dissert_debora.pdf: 2027401 bytes, checksum: 524ec149dd07d0c26e6f8628cc1847a7 (MD5) Previous issue date: 2007-08-09 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This descriptive study aimed validating the postural evaluation system and to evaluate the posture of the cervical and thoracic spine area in the sagittal plan with the level of physical activity of elderly people. The sample was composed by 72 people (elderly), being 55 women and 17 men, with average age of the 69,19 years old (_=6,63), all of them belonged to Third Age Group from the Universidade Estadual de Santa Catarina UDESC. The instruments for data collection were: interview and the IPAQ (International Physical Activity Questionnaire, version 8). A posture assessment system was elaborated for this study, setting up a Rotative Platform for Postural Assessment (PGAP), and also using a camera, a calibration stand and specific software; the instruments were applied individually. Data were tabulated and stored in the statistical package Statistica version 6.0, and the Pearson s Correlation Coefficient, chi-square and Student s t test were used, with a significance level of p <0,05. Fifty three of these people had age between 60 and 74 years old (young elderlies) and nineteen above to 75 (old elderlies). Most of them could be considered active physically (98,6%). Older women were more active than men. The sitting time average ( =1.876 min/sem) was superior than time spent in physical activity ( =1.732 min/sem). Young elderlies were more active ( =1.136 min/sem.) that the oldest ones ( =825 min/sem.). Younger elderlies were more active than old ones. The cervical% index average was 37,5 and the thoracic% one, 15,9. According the statistical tests, there was no significant statistically relationship between these both variables. The women presented larger cervical% index (38,4) that the men (34,5) and smaller thoracic% index (15,7 and 16,4, respectively). The youngest showed a larger cervical% (38,7) and thoracic% (15.9) index than the oldest ones (34,0 and 15,7). There was significant difference (t test) between cervical% index and age classification (p=0,0598). The apex of the cervical and thoracic for all the people was placed in the superior part of the curvature. The thoracic apex and index presented significant statistically correlation (r=0,23). It is ended that: There is no relationship between the physical activity and cervical and thoracic postures in this study. High levels of physical activity were associated to high indexes of kyphosis. This work concluded that: the evaluation system proposed got successfully with a huge applicability. The indexes proposed to measure posture of the cervical and thoracic spine area showed finely the curves characteristics. Elderly with a higher physical activity are related to more accentuated curves in the thoracic area. / Este estudo de cunho descritivo-diagnóstico teve como objetivo principal validar o sistema de avaliação postural e avaliar a postura (região cervical e torácica no plano sagital) de idosos com diferentes níveis de atividade física. Participaram do estudo 72 idosos, sendo 55 mulheres e 17 homens, com média de idade de 69,19 anos (_=6,63), pertencentes ao Grupo de Estudos da Terceira Idade (GETI) da Universidade do Estado de Santa Catarina (UDESC). Os instrumentos para a coleta de dados foram: entrevista contendo ficha de identificação (nome, sexo, idade, estatura) e o IPAQ (Questionário Internacional de Atividade Física, versão 8, forma longa e semana normal), que avalia o nível de atividade física. Para este estudo foi elaborado um sistema de avaliação da postura, com a construção da Plataforma Giratória para Avaliação Postural (PGAP), usou-se também filmadora, suporte de calibração e software específico. Os instrumentos foram aplicados aos idosos individualmente. Os dados foram tabulados e armazenados no pacote estatístico Statistica versão 6.0, usou-se os testes de Correlação de Pearson, Qui Quadrado e t Student, adotando-se um nível de significância de p<0,05. Dos 72 idosos avaliados, 53 eram idosos jovens (60 a 74 anos) e 19 idosos idosos (acima de 75 anos). A maior parte dos idosos pôde ser considerada fisicamente ativa (98,6%). As mulheres idosas eram mais ativas que os homens. A média do tempo sentado ( =1876 min/sem) foi superior ao tempo realizando atividade física ( =1732 min/sem). Idosos jovens eram mais ativos ( =1136 min/sem.) que os idosos idosos ( =825 min/sem.). A média do índice da cervical% foi de 37,5 e da torácica% de 15,9. Segundo testes estatísticos não houve relação significativa entre estas variáveis. As mulheres apresentaram maior índice cervical% (38,4) que os homens (34,5) e menor índice torácico% (15,7 e 16,4, respectivamente). Os mais jovens apresentaram índices maiores para a cervical% (38,7) e torácica% (15,9) que os mais velhos (34,0 e 15,7). Houve diferença significativa (teste t) para o índice da cervical% e a classificação etária (p=0,0598). O ápice da curva cervical e torácica para todos os idosos estava situado na parte superior da curvatura. O ápice da torácica e o índice da torácica% apresentaram correlação estatisticamente significativa (r=0,23). Quanto mais acentuada a torácica mais superior, na curva, está o ápice. Não se observou relação entre o nível de atividade física e os valores dos índices da cervical%. Porém observou-se para a torácica. Índices mais elevados de cifose estavam associados a níveis mais elevados de atividade física. Conclui-se que: O sistema de avaliação postural construído atendeu as necessidades do estudo, e mostrou-se de fácil aplicabilidade, e seguro para os idosos. Os indicadores propostos para medição das regiões cervical e torácica possibilitaram demonstrar a magnitude e características das curvas. Idosos mais ativos estão relacionados a curvas mais acentuadas na região torácica.

L’estimation de la pose du corps humain est un problème difficile en vision par ordinateur et les actions de toutes les difficultés de détection d’objet. Cette thèse se concentre sur les problèmes de l’estimation de la pose du corps humain dans les images ou vidéo, y compris la diversité des apparences, les changements de scène et l’éclairage de fond de confusion encombrement. Pour résoudre ces problèmes, nous construisons un modèle robuste comprenant les éléments suivants. Tout d’abord, les méthodes top-down et bottom-up sont combinés à l’estimation pose humaine. Nous étendons le modèle structure picturale (PS) de coopérer avec filtre à particules recuit (APF) pour robuste multi-vues estimation de la pose. Deuxièmement, nous proposons plusieurs parties de mélange à base (MMP) modèle d’une partie supérieure du corps pour l’estimation de la pose qui contient deux étapes. Dans la phase de pré-estimation, il y a trois étapes: la détection du haut du corps, catégorie estimation du modèle pour le haut du corps, et la sélection de modèle complet pour pose estimation. Dans l’étape de l’estimation, nous abordons le problème d’une variété de poses et les activités humaines. Enfin, le réseau de neurones à convolution (CNN) est introduit pour l’estimation de la pose. Un Local Multi-résolution réseau de neurones à convolution (LMR-CNN) est proposé pour apprendre la représentation pour chaque partie du corps. En outre, un modèle hiérarchique sur la base LMR-CNN est défini pour faire face à la complexité structurelle des parties de branche. Les résultats expérimentaux démontrent l’efficacité du modèle proposé / Human pose estimation is a challenging problem in computer vision and shares all the difficulties of object detection. This thesis focuses on the problems of human pose estimation in still images or video, including the diversity of appearances, changes in scene illumination and confounding background clutter. To tackle these problems, we build a robust model consisting of the following components. First, the top-down and bottom-up methods are combined to estimation human pose. We extend the Pictorial Structure (PS) model to cooperate with annealed particle filter (APF) for robust multi-view pose estimation. Second, we propose an upper body based multiple mixture parts (MMP) model for human pose estimation that contains two stages. In the pre-estimation stage, there are three steps: upper body detection, model category estimation for upper body, and full model selection for pose estimation. In the estimation stage, we address the problem of a variety of human poses and activities. Finally, a Deep Convolutional Neural Network (DCNN) is introduced for human pose estimation. A Local Multi-Resolution Convolutional Neural Network (LMR-CNN) is proposed to learn the representation for each body part. Moreover, a LMR-CNN based hierarchical model is defined to meet the structural complexity of limb parts. The experimental results demonstrate the effectiveness of the proposed model