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As relações entre as características antropométricas e a eficiência na realização de técnicas de mão, quadril e perna no judô / The relationships between the antropometrics characteristics and efficiency in the accomplishment of techniques of hand, hip and leg in the judoTeixeira, Jairo Santarem 10 September 2007 (has links)
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Previous issue date: 2007-09-10 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This study it describes the relations between the antropometrics characteristics and the efficiency in the accomplishment of techniques of hand, hip and leg in the Judo. For in such a way, they had been analyzed through kinematic, three judo players of Florianópolis with different antropometrics characteristics for the stature, that had been projected for one exactly judo player of medium stature. The anatomical angles of trunk, hip had been taken as indicating by efficiency in the techniques and knee; the speed of application of the technique and the variation of the vertical displacement of the center of mass of the executant in the three stages of the technique (disequilibrium, rabbet and fall). For collection of the data the System Peak Motus for verification of the kinematics variables of execution time was used, measurement of angles, speed of the corporal segments and determination of the mass center. The collections had happened in the Laboratory of Biomechanics of the Center of Health Sciences and Sport of the University of the State of Santa Catarina. The data had been normalized and treated through statistical model for comparison 0 variable between groups one way ANOVA, and descriptive statistics (p_0,05). The results had indicated that it has significant differences for execution of techniques of hand, hip and leg in individuals of different statures in the majority of the selected 0 variable. For angular displacement, in all the techniques and statures the movements had followed one same standard with small differences enter the projected citizens, can be verified that uke had efficiency more of tori when projecting lesser that it stops the technique of leg and when projecting with the techniques of hip and hand uke of bigger stature. For the time of execution of the techniques, the gotten results show that little time is necessary to project individuals of bigger stature with exception of the technique o soto gari that had greater time of projection for the stature highest. With regard to the vertical displacement of the mass center, the trajectory in the vertical plan exactly presented standard of movement with lesser values for the projection of uke of lesser stature of the beginning to the end of the techniques and similar values for the projection of ukes of stature measured and high. It can be concluded with this study that the selected variable had influenced in the efficiency of application of the techniques in individuals of different antropometrics characteristics for stature. / Este estudo descreve as relações entre as características antropométricas e a eficiência na realização de técnicas de mão, quadril e perna no Judô. Para tanto, foram analisadas através de cinemetria, três judocas da Grande Florianópolis com características antropométricas diferentes para a estatura, que foram projetados por um mesmo judoca de estatura mediana. Foram tomados como indicadores de eficiência nas técnicas os ângulos anatômicos de tronco, quadril e joelho; a velocidade de aplicação da técnica e a variação do deslocamento vertical do centro de massa do executante nas três etapas da técnica (desequilíbrio, encaixe e queda). Para coleta dos dados foi utilizado o Sistema Peak Motus para verificação das variáveis cinemáticas de tempo de execução, medição de ângulos, velocidade dos segmentos corporais e determinação do centro de massa. As coletas aconteceram no Laboratório de Biomecânica do Centro de Ciências da Saúde e do Esporte Centro de Educação Física e Fisioterapia da Universidade do Estado de Santa Catarina. Os dados foram normalizados e tratados através modelo estatístico para comparação de variáveis entre grupos one way ANOVA, e de estatística descritiva (p_0,05). Os resultados indicaram que há diferenças significativas para execução de técnicas de mão, quadril e perna em indivíduos de diferentes estaturas na maioria das variáveis selecionadas. Para deslocamento angular, em todas as técnicas e estaturas os movimentos seguiram um mesmo padrão com diferenças pequenas entres os sujeitos projetados, pode-se verificar que houve mais eficiência do tori ao projetar o uke menor que ele para a técnica de perna e ao projetar com as técnicas de quadril e mão o uke de maior estatura. Para o tempo de execução das técnicas, os resultados obtidos mostram que é necessário menos tempo para projetar indivíduos de maior estatura com exceção da técnica o soto gari que teve maior tempo de projeção para a estatura mais alta. Com relação ao deslocamento vertical do centro de massa, a trajetória no plano vertical apresentou mesmo padrão de movimento com valores menores para a projeção do uke de menor estatura do inicio ao fim das técnicas e valores semelhantes para a projeção de ukes de estatura media e alta. Pode-se concluir com este estudo que as variáveis selecionadas influenciaram na eficiência de aplicação das técnicas em indivíduos de diferentes características antropométricas para estatura.
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A participatory approach to eliminating Musculoskeletal disorder risk factors in a paper industry workflow : Developing an assisting tool for paper industry workers by exploring work tasks through participatory design activitiesLindqvist, Johan January 2024 (has links)
This project was implemented as a Master thesis project in Industrial design engineering (IDE). In collaboration with Billerud Karlsborg, the project was initiated to develop proposal for a technological solution for eliminating a manual handling work task in the production line for coated paper products. The design process was implemented as a Participatory design approach, inviting the workers of the production unit to collaborate in design activites and workshops. The participatory approach was based on the Scandinavian perspective on Participatory design, with influences from the comtemporary views on collaborative design. The project included a holistic ergonomic analysis focused on the assessment of musculoskeletal disorder risk factors in the work task flagged by workers as a cause of work strain. The focused work task documented in detail and assessed through REBA and RULA assessment. The work task involves manual handling of a stack of residual paper that is rolled to a tube, by hand, and subsequently lifted and pushed to a grinder inlet for re-purposing. While the ergonomic analysis confirm that there are postural risk factors present, the pace of work suggests that adequate resting for preventing work stain related to the focused task is possible during work. However, the percieved work strained is suggested to originate from work task in close connection to the focused task. A proposal for a concept that sufficiently eliminates the risk factors found in the focused task is developed based on a human-centered design and anthropometric principles. The development concludes with the construction of a prototype, but time constraints denies evaluation of the prototype with end users. The concept is therefore presented as renders of a 3D-model. / Det här projektet har utförts som ett examensarbete inom Civilingenjör Teknisk design, på uppdrag av Billerud Karlsborg. Syftet med projektet var att utveckla ett tekniskt lösningsförslag till ett av Billerud utvalt arbetsmiljöproblem vid en av arbetstationerna i pappersbruket i Karlsborg. I samarbete med arbetarna i den berörda produktionslinjen genomfördes en participativ designprocess, innefattade planering och genomförande av participativa designaktiviteter och workshops baserade på de skandinaviska teorierna kring participativ design, med influens från nyare perspektiv kring co-design. Som en del i arbetet utfördes en övergipande ergonomisk analys avseende belastningsergonomiska riskkällor vid en fokuserad arbetsstation, med en detaljerad kartläggning av den arbetsuppgift som arbetarna upplever som problematisk. Den fokuserade arbetsuppgiften innefattar manuell hantering av en restprodukt som behöver rullas ihop för hand och därefter lyftas samt skjutas till en kvarn för återvinning. Den ergonomiska analysen utfördes med hjälp av REBA- och RULA-bedömningar, vilka bekräftade att en potentiell risk för belastningsergonomiska skador i det arbetssätt som utövas, men där produktionstakten och systemets styrning tyder på att tillräcklig vila är möjlig under arbetet för att motverka skador från lågintensivt muskelarbete. Arbetsmiljöproblemet bedöms däremot inte vara obefintligt då arbetarnas totala arbete innefattar ytterligare moment av fysisk belastning, och där arbetsmiljöproblemet eventuellt kan vara ett resultat av närliggande moment till den fokuserade arbetsuppgiften. Som lösningsförslag på problemet utvecklas ett koncept som eliminerar de funna riskkällorna i den avgränsade arbetsuppgiften, med utgångspunkt i användarcentrerad design och utefter antropometriska riktlinjer. Utvecklingen av en fysisk prototyp för utvärdering med arbetarna påbörjades, men hann inte slutföras innan projektet avslutades. Istället presenteras konceptet genom rendingar av en 3D-modell.
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