Considerando a inserção profissional como a articulação de dois componentes importantes no processo de socialização, o trabalho e a educação, a pesquisa realizada nessa dissertação objetivou identificar os elementos sócio-educativos que configuram a (re)inserção no mercado de trabalho de pessoas que sofreram amputação de membros. Inicialmente, realizou-se uma abordagem quantitativa a partir da revisão total de 169 prontuários de amputados protetizados pelo SUS, INSS e rede privada de saúde. A abordagem qualitativa da pesquisa ocorreu a partir de entrevistas semiestruturadas com profissionais do centro de reabilitação profissional do INSS/POA e aplicação da técnica do discurso do sujeito coletivo nas entrevistas com amputados gaúchos protetizados em Porto Alegre. Identificaram-se aspectos comuns nas falas dos entrevistados, relacionados à preponderância da protetização no processo de reabilitação e à relevância de retomar a atividade profissional, ainda que informalmente, para resgate da autoestima e reinclusão social, conferindo à (re)inserção profissional um papel terapêutico, além de sobrevivência. A inserção profissional é propulsionada pelas redes sociais informais, em que os contatos são peculiarmente importantes no acesso a informações sobre as vagas de trabalho, bem como as indicações para o preenchimento das mesmas. Aliás, as redes sociais aparecem como os recursos mais efetivos do que as políticas públicas afirmativas na promoção de empregabilidade. Outro aspecto significativo à (re)inserção profissional diz respeito à escolaridade, uma característica que influencia o tipo de retorno ao mercado de trabalho: quanto mais escolarizado, maior a tendência de atuação no mercado de trabalho formal, assim como a oferta de empregos por cotas reservadas a PPD´s; enquanto que para os amputados menos escolarizados, os postos de trabalho ocupados são de grande desgaste físico com base em saberes práticos, aprendidos no cotidiano de trabalho. / Whereas the occupational integration as a combination of two important components in the socialization process: the work and education, research carried out in this paper aimed to identify the social and educational elements of the (re) integration into the labor market of people who have suffered amputation of limbs. Initially, there was a quantitative approach based on the revision of 169 medical records of amputees prostheses by SUS, Social Security and private health clinics. The qualitative research took place from semi-structured interviews with professionals in the rehabilitation center professional INSS / POA and the technique of collective subject speech in interviews with amputees from Rio Grande do Sul. We identified common issues in the interviews, related to the preponderance of the prosthesis in the rehabilitation process, the importance of taking back their career, even informally, for the recovery of self-esteem and social reinsertion, giving to the (re) insertion a therapeutic role, beyond survival. The professional integration is driven by informal social networks, where contacts are uniquely important for improving access to information about job vacancies, and the information to fill them. Moreover, the social networks are resources more effective than affirmative public policies in promoting employability. Another significant aspect of (re) integration mechanisms regards to education, a characteristic that influences the type of return to the labor market: as more educated, greater tendency of activity in the formal labor market and the demand for jobs by quotas reserved for PPD´s. While for amputees less educated, the jobs are very physically demanding on the basis of practical knowledge, learned in daily work.

Considerando a inserção profissional como a articulação de dois componentes importantes no processo de socialização, o trabalho e a educação, a pesquisa realizada nessa dissertação objetivou identificar os elementos sócio-educativos que configuram a (re)inserção no mercado de trabalho de pessoas que sofreram amputação de membros. Inicialmente, realizou-se uma abordagem quantitativa a partir da revisão total de 169 prontuários de amputados protetizados pelo SUS, INSS e rede privada de saúde. A abordagem qualitativa da pesquisa ocorreu a partir de entrevistas semiestruturadas com profissionais do centro de reabilitação profissional do INSS/POA e aplicação da técnica do discurso do sujeito coletivo nas entrevistas com amputados gaúchos protetizados em Porto Alegre. Identificaram-se aspectos comuns nas falas dos entrevistados, relacionados à preponderância da protetização no processo de reabilitação e à relevância de retomar a atividade profissional, ainda que informalmente, para resgate da autoestima e reinclusão social, conferindo à (re)inserção profissional um papel terapêutico, além de sobrevivência. A inserção profissional é propulsionada pelas redes sociais informais, em que os contatos são peculiarmente importantes no acesso a informações sobre as vagas de trabalho, bem como as indicações para o preenchimento das mesmas. Aliás, as redes sociais aparecem como os recursos mais efetivos do que as políticas públicas afirmativas na promoção de empregabilidade. Outro aspecto significativo à (re)inserção profissional diz respeito à escolaridade, uma característica que influencia o tipo de retorno ao mercado de trabalho: quanto mais escolarizado, maior a tendência de atuação no mercado de trabalho formal, assim como a oferta de empregos por cotas reservadas a PPD´s; enquanto que para os amputados menos escolarizados, os postos de trabalho ocupados são de grande desgaste físico com base em saberes práticos, aprendidos no cotidiano de trabalho. / Whereas the occupational integration as a combination of two important components in the socialization process: the work and education, research carried out in this paper aimed to identify the social and educational elements of the (re) integration into the labor market of people who have suffered amputation of limbs. Initially, there was a quantitative approach based on the revision of 169 medical records of amputees prostheses by SUS, Social Security and private health clinics. The qualitative research took place from semi-structured interviews with professionals in the rehabilitation center professional INSS / POA and the technique of collective subject speech in interviews with amputees from Rio Grande do Sul. We identified common issues in the interviews, related to the preponderance of the prosthesis in the rehabilitation process, the importance of taking back their career, even informally, for the recovery of self-esteem and social reinsertion, giving to the (re) insertion a therapeutic role, beyond survival. The professional integration is driven by informal social networks, where contacts are uniquely important for improving access to information about job vacancies, and the information to fill them. Moreover, the social networks are resources more effective than affirmative public policies in promoting employability. Another significant aspect of (re) integration mechanisms regards to education, a characteristic that influences the type of return to the labor market: as more educated, greater tendency of activity in the formal labor market and the demand for jobs by quotas reserved for PPD´s. While for amputees less educated, the jobs are very physically demanding on the basis of practical knowledge, learned in daily work.

Thesis title: Didactics of downhill skiing for peouple with lower limb amputation. Main objectives: Verification of proposed methodical series for lower-limb amputation skiers. Method: The work is of theoretical-empirical character, this is an observatory- explanation case study applied to five probands, three skiers with one- sided underknee amputation, one skier with upperknee amputation and one proband with bilatelar amputation. Selection of probands was mad by intentional selection. Based on our empiricism, we will test probands before and after the training of our methodical series proposed in the bachelor thesis, enriched with special preparátory exercises. Results: Proband J.V. improved by 51 points and T.F. by 46 points. While two more experienced skiers P.S. by 37 points and A.B. 29 points. Proband A.B., who has unilateral knee amputation, is also the most experienced skier. He has improved by a total of twenty-nine points, at the highest skill level from the entire set of probands. A separate chapter in our ensemble was a skier with a two-sided amputation who had the least improvement at the lowest skill level. Such a skier is in an incomparably more difficult situation. Conclusion: In our diploma thesis, we have found that our methodological system has proven to be useful and we hope it...

Bakgrund Att ha en transfemoral (TF) amputation har en stor inverkan på den amputerades liv med bl.a. större risk för fall, lägre gånghastighet och smärta. I dag är utbudet av kvalitativa studier som visar på hur TF-amputerade upplever sin vardag, mycket begränsat. Det saknas helt studier som tar upp hur det är att ha ett föräldraansvar när man är TF-amputerad.    Syfte Syftet med studien var att se om det fanns några självupplevda problem i vardagen för unilateralt TF-amputerade i föräldrarollen kopplad till deras protes-användning.   Metod Kvalitativa semistrukturerade intervjuer genomfördes med fyra TF-amputerade pappor. Dessa analyserades och tematiserades.    Resultat Vid analysen hittades nio huvudteman: Ansvar, relation med barnen, svårigheter med spontanitet, aktiviteter, miljörelaterade problem, oro, energi och smärta, säkerhet.  Deltagarna upplevade bristande delaktighet, fler konflikter med sina barn och bristande energi.    Slutsats Det finns ett flertal självupplevda problem för TF-amputerade föräldrar och dessa berör främst känslan av delaktighet, relationen med barnen så väl som rent praktiska aspekter. / Background Having a transfemoral (TF) amputation has a major impact on the amputee's life, such as greater risk of falls, lower walking speed and pain. Today, there are no qualitative studies that show how TF-amputees experience their everyday lives and there are no studies that address what it is like to have parental responsibility when you are TF-amputated.   Purpose The aim of this study was to see if there were any self-experienced problems in the everyday life of unilateral TF amputees in the parental role linked to their prosthetic use.   Method Qualitative semi-structured interviews were conducted with four TF-amputated fathers. These were analysed and thematised.   Results Nine main themes were detected during the analysis: Responsibility, relationship with the children, difficulties with spontaneity, activities, environment-related problems, concern, energy and pain and safety. Participants experienced lack of participation, more conflicts with their children and lack of energy.   Conclusion There are self-experienced problems for TF-amputated parents, and these affect the sense of participation, the relationship with the children and practical aspects

Adjustment to disability is a foundational concept within rehabilitation psychology and constitutes an important public health problem given the adverse outcomes associated with maladjustment. While the disability literature has highlighted depressive elevations in response to functional impairment, resilience and alternative patterns of psychological adjustment have received substantially less empirical inquiry. This dissertation is comprised of three papers, the first two of which are longitudinal studies utilizing distinct samples of individuals with acquired disabilities: a population-sample of physically impaired older adults, and a convenience sample of individuals with newly acquired amputations. The third paper summarizes current data science and statistical findings regarding disability adjustment for patients and their providers. The two longitudinal studies share a common statistical methodology, latent growth mixture modeling (LGMM), allowing for the identification of distinct subgroups (classes) of individuals who share similar symptom profiles over time. LGMM is well-poised to resolve fundamental questions about whether psychological functioning after disability is best described by a population-level archetypal response (i.e., distress and depression that remits over time), or alternatively, whether the data suggest a variety of definable subgroups with distinct psychological trajectories. Results of empirical papers 1 and 2 provide strong empirical evidence that the process of disability adjustment is heterogeneous, with multiple pathways of symptom development and remission. The third paper demonstrates how findings from current rehabilitation science can be utilized to inform psychoeducational materials for practitioners and their patients with recent limb loss. This chapter addresses gaps in dissemination of knowledge by describing various patterns of psychological outcomes encountered by individuals following amputation surgery, as supported by Study 2 and the broader resilience literature.

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L’objectif de ce travail de thèse est de caractériser, chez les amputés unilatéraux du membre inférieur, les modalités posturales qui interviennent dans la régulation de l’équilibre orthostatique et d’étudier l’impact de l’amputation sur la production de force à la cheville physiologique. Une première étude a révélé la présence de trois modalités posturales afin de réguler le contrôle postural : les amputés transfémoraux adoptent une modalité posturale basée sur les paramètres de stabilité, les amputés transtibiaux optent pour une modalité posturale mixte et les non amputés se réfèrent aux paramètres de l’attitude posturale. Etant donné que l’articulation de la cheville joue un rôle essentiel dans la régulation de l’équilibre postural, il était alors pertinent d’investiguer la production de force à la cheville physiologique. Toutefois, les ergomètres permettant d’étudier l’articulation de la cheville présentent des biais de mesure majeurs. Dans ce cadre, une deuxième étude a été menée afin de développer et valider un nouvel ergomètre pour cheville : le B.O.T.T.E. Parallèlement, la mise en place d’une méthode de mesure basée sur le retour visuel permettant une quantification fiable du couple de force a fait l’objet d’une troisième étude. Ensuite, une quatrième étude visait à utiliser le B.O.T.T.E. pour investiguer l’impact de l’amputation sur la production de force à la cheville physiologique. Les résultats de cette étude confirment la présence d’un déficit au niveau du couple de force généré en flexion plantaire (conditions maximale et sous maximale) chez les amputés transfémoraux. Enfin, ce travail de thèse vise à aider les rééducateurs et les cliniciens à optimiser la prise en charge des patients amputés. / This Ph.D. thesis aims to evaluate the standing posture modalities and the ankle joint torque in the intact limb in unilateral lower limb amputees. A first study shows the presence of three posture modalities: the non-amputee group relied on standing erect, the transfemoral amputees’ stance depended on balance control and the transtibial amputees exhibited a mixed modality of simultaneously maintaining an upright stance and standing balance. Since the ankle muscles have a functional importance in standing posture modalities, it is imperative to investigate the ankle joint torque in the intact limb. However, the current devices used to assess the ankle joint present substantial limitations for the measurement. Thus, a second study was designed to develop and to validate a new ankle ergometer B.O.T.T.E. Moreover, a third study was achieved in order to estimate the effect of visual feedback on enhancing isometric maximal voluntary contractions. A fourth study was realized to investigate the ankle joint torque in the intact leg of unilateral lower limb amputees. The results show that transfemoral amputees produce less torque and are less steady compared to transtibial amputees and able-bodied individuals. Overall, the present findings of this Ph.D. thesis could have implications for clinical practice and for rehabilitation of patients with a lower limb amputation.

There are many amputees around the world who have lost a limb through conflict, disease or an accident. Upper-limb prostheses controlled using surface Electromyography (sEMG) offer a solution to help the amputees; however, their functionality is limited by the small number of movements they can perform and their slow reaction times. Pattern recognition (PR)-based EMG control has been proposed to improve the functional performance of prostheses. It is a very promising approach, offering intuitive control, fast reaction times and the ability to control a large number of degrees of freedom (DOF). However, prostheses controlled with PR systems are not available for everyday use by amputees, because there are many major challenges and practical problems that need to be addressed before clinical implementation is possible. These include lack of individual finger control, an impractically large number of EMG electrodes, and the lack of deployment protocols for EMG electrodes site selection and movement optimisation. Moreover, the inability of PR systems to handle multiple forces is a further practical problem that needs to be addressed. The main aim of this project is to investigate the research challenges mentioned above via non-invasive EMG signal acquisition, and to propose practical solutions to help amputees. In a series of experiments, the PR systems presented here were tested with EMG signals acquired from seven transradial amputees, which is unique to this project. Previous studies have been conducted using non-amputees. In this work, the challenges described are addressed and a new protocol is proposed that delivers a fast clinical deployment of multi-functional upper limb prostheses controlled by PR systems. Controlling finger movement is a step towards the restoration of lost human capabilities, and is psychologically important, as well as physically. A central thread running through this work is the assertion that no two amputees are the same, each suffering different injuries and retaining differing nerve and muscle structures. This work is very much about individualised healthcare, and aims to provide the best possible solution for each affected individual on a case-by-case basis. Therefore, the approach has been to optimise the solution (in terms of function and reliability) for each individual, as opposed to developing a generic solution, where performance is optimised against a test population. This work is unique, in that it contributes to improving the quality of life for each individual amputee by optimising function and reliability. The main four contributions of the thesis are as follows: 1- Individual finger control was achieved with high accuracy for a large number of finger movements, using six optimally placed sEMG channels. This was validated on EMG signals for ten non-amputee and six amputee subjects. Thumb movements were classified successfully with high accuracy for the first time. The outcome of this investigation will help to add more movements to the prosthesis, and reduce hardware and computational complexity. 2- A new subject-specific protocol for sEMG site selection and reliable movement subset optimisation, based on the amputee’s needs, has been proposed and validated on seven amputees. This protocol will help clinicians to perform an efficient and fast deployment of prostheses, by finding the optimal number and locations of EMG channels. It will also find a reliable subset of movements that can be achieved with high performance. 3- The relationship between the force of contraction and the statistics of EMG signals has been investigated, utilising an experimental design where visual feedback from a Myoelectric Control Interface (MCI) helped the participants to produce the correct level of force. Kurtosis values were found to decrease monotonically when the contraction level increased, thus indicating that kurtosis can be used to distinguish different forces of contractions. 4- The real practical problem of the degradation of classification performance as a result of the variation of force levels during daily use of the prosthesis has been investigated, and solved by proposing a training approach and the use of a robust feature extraction method, based on the spectrum. The recommendations of this investigation improve the practical robustness of prostheses controlled with PR systems and progress a step further towards clinical implementation and improving the quality of life of amputees. The project showed that PR systems achieved a reliable performance for a large number of amputees, taking into account real life issues such as individual finger control for high dexterity, the effect of force level variation, and optimisation of the movements and EMG channels for each individual amputee. The findings of this thesis showed that the PR systems need to be appropriately tuned before usage, such as training with multiple forces to help to reduce the effect of force variation, aiming to improve practical robustness, and also finding the optimal EMG channel for each amputee, to improve the PR system’s performance. The outcome of this research enables the implementation of PR systems in real prostheses that can be used by amputees.

Introdução: O amputado transfemoral apresenta alterações anatômicas e funcionais importantes que se manifestam na marcha e nas atividades diárias. Apesar do lado envolvido na amputação apresentar menor força, não se sabe ao certo se há alguma posição angular ou velocidade angular específica em que isso ocorre, o tipo de contração muscular mais acometido e, além disso, se o lado não envolvido na amputação, também, possui variações da força muscular. Objetivos: Avaliar o torque e trabalho nos músculos do quadril através da dinamometria isocinética nos amputados transfemorais, em contrações isométricas, concêntricas e excêntricas dos músculos do quadril dos amputados transfemorais e comparar estes valores com o lado não envolvido pela amputação e grupo controle. Casuística e Método: A característica do estudo é do tipo transversal, no qual 23 sujeitos do sexo masculino, sedentários, foram divididos em dois grupos. O grupo controle foi constituído de 13 sujeitos com média de idade de 27,2 ± 7,6 anos, massa corporal de 69,7 ± 9,9 kg, e estatura de 1,74 ± 0,05 m. O grupo de amputados foi constituído de 10 (dez) sujeitos amputados transfemorais, com 37,7 ± 12,5 anos de idade, massa corporal de 63,9 ± 7,5 kg e estatura média de 1,70 ± 0,09 m. O dinamômetro isocinético Biodex modelo System 3 Pro foi utilizado para as coletas dos dados isométricos e dos movimentos isocinéticos, tanto para contração muscular concêntrica quanto para contração excêntrica. As posições angulares foram de 0º,10º, 20º e 30 º de abdução do quadril, para os grupos adutores e abdutores, e 0º, 30º, 60º e 90º para os grupos flexores e extensores. As contrações concêntricas e excêntricas foram avaliadas nas velocidades angulares de 30º/s, 90º/s e 150º/s. Resultados: O grupo amputado apresentou reduções significativas do torque e trabalho no lado envolvido nas contrações isométricas, principalmente nas posições de maior grau de alongamento muscular. Os achados das contrações concêntricas e excêntricas mostraram que o lado envolvido e não envolvido têm menores torque que o grupo controle, principalmente em maior velocidade. O grupo adutor do quadril tem importante diminuição de força em ambos os lados no amputado. Interessantemente, o torque e trabalho dos músculos extensores do quadril, nos amputados, em ambos os lados, foram maiores que o grupo controle, o que indicar uma adaptação dos músculos ao uso da prótese. A variável trabalho pode ser importante para revelar as condições musculares desta população. Conclusão: Os achados do presente estudo mostraram que os amputados transfemorais têm alterações no torque e trabalho mecânico gerados pelos músculos do quadril, no lado envolvido e não envolvido, dependendo da velocidade angular e da posição da articulação. / Introduction Amputation at the transfemoral level leads to anatomical and functional adaptations that change the gate pattern and influences daily-life activities. It is well known that the side of the amputation presents lower force. However, it is not known if there is a specific angular position or angular velocity in that the force is even lower. Moreover, how amputation affects the type of muscular contraction and the force generated in the contralateral side needs further investigation. Objectives: to investigate torque and mechanical work generated by hip muscles in transfemoral amputees subjects during concentric and eccentric isometric contractions. Furthermore, to compare these parameters with the non-involved side and a control non-amputee group. Methods: Thirteen subjects (mean age ±SD, 27,2 ± 7,6 years, mean height ± SD, 1,74 ± 0,05 cm, mean weight 69,7 ± 9,9 kg) in the control group and ten (mean age ±SD, 37,7 ± 12,5 years, mean height ± SD, 1,70 ± 0,09 cm, mean weight 63,9 ± 7,5 kg) in the amputee group participated in the study. A dynamometer Biodex System 3 Pro was used to measure torque and mechanical work in four (0º, 10º, 20º e 30) hip abduction positions during hip abduction and adduction efforts, and four (0º, 30º, 60º e 90) hip abduction positions during hip flexion and extension. Concentric and eccentric contractions were evaluated during 30º/s, 90º/s and 150º/s. Results: The amputee group presented significant reduction in the isometric torque generated in the ipsilateral side, mainly when the muscle was further stretched. For concentric and eccentric contractions, in high angular velocity, the control group presented significantly higher torque values when compared with the both sides of the amputee group. Interestingly, the torque and mechanical work generated by the amputee group, in both sides, were significantly higher compared with the control group. Mechanical work might be an important parameter to understand muscular conditions in the amputee population. Conclusion: The present study showed that transfemoral amputees have alterations in hip muscles torque and mechanical work generation, in the involved and uninvolved side, according to the joint position and angular velocity.

Introdução: O amputado transfemoral apresenta alterações anatômicas e funcionais importantes que se manifestam na marcha e nas atividades diárias. Apesar do lado envolvido na amputação apresentar menor força, não se sabe ao certo se há alguma posição angular ou velocidade angular específica em que isso ocorre, o tipo de contração muscular mais acometido e, além disso, se o lado não envolvido na amputação, também, possui variações da força muscular. Objetivos: Avaliar o torque e trabalho nos músculos do quadril através da dinamometria isocinética nos amputados transfemorais, em contrações isométricas, concêntricas e excêntricas dos músculos do quadril dos amputados transfemorais e comparar estes valores com o lado não envolvido pela amputação e grupo controle. Casuística e Método: A característica do estudo é do tipo transversal, no qual 23 sujeitos do sexo masculino, sedentários, foram divididos em dois grupos. O grupo controle foi constituído de 13 sujeitos com média de idade de 27,2 ± 7,6 anos, massa corporal de 69,7 ± 9,9 kg, e estatura de 1,74 ± 0,05 m. O grupo de amputados foi constituído de 10 (dez) sujeitos amputados transfemorais, com 37,7 ± 12,5 anos de idade, massa corporal de 63,9 ± 7,5 kg e estatura média de 1,70 ± 0,09 m. O dinamômetro isocinético Biodex modelo System 3 Pro foi utilizado para as coletas dos dados isométricos e dos movimentos isocinéticos, tanto para contração muscular concêntrica quanto para contração excêntrica. As posições angulares foram de 0º,10º, 20º e 30 º de abdução do quadril, para os grupos adutores e abdutores, e 0º, 30º, 60º e 90º para os grupos flexores e extensores. As contrações concêntricas e excêntricas foram avaliadas nas velocidades angulares de 30º/s, 90º/s e 150º/s. Resultados: O grupo amputado apresentou reduções significativas do torque e trabalho no lado envolvido nas contrações isométricas, principalmente nas posições de maior grau de alongamento muscular. Os achados das contrações concêntricas e excêntricas mostraram que o lado envolvido e não envolvido têm menores torque que o grupo controle, principalmente em maior velocidade. O grupo adutor do quadril tem importante diminuição de força em ambos os lados no amputado. Interessantemente, o torque e trabalho dos músculos extensores do quadril, nos amputados, em ambos os lados, foram maiores que o grupo controle, o que indicar uma adaptação dos músculos ao uso da prótese. A variável trabalho pode ser importante para revelar as condições musculares desta população. Conclusão: Os achados do presente estudo mostraram que os amputados transfemorais têm alterações no torque e trabalho mecânico gerados pelos músculos do quadril, no lado envolvido e não envolvido, dependendo da velocidade angular e da posição da articulação. / Introduction Amputation at the transfemoral level leads to anatomical and functional adaptations that change the gate pattern and influences daily-life activities. It is well known that the side of the amputation presents lower force. However, it is not known if there is a specific angular position or angular velocity in that the force is even lower. Moreover, how amputation affects the type of muscular contraction and the force generated in the contralateral side needs further investigation. Objectives: to investigate torque and mechanical work generated by hip muscles in transfemoral amputees subjects during concentric and eccentric isometric contractions. Furthermore, to compare these parameters with the non-involved side and a control non-amputee group. Methods: Thirteen subjects (mean age ±SD, 27,2 ± 7,6 years, mean height ± SD, 1,74 ± 0,05 cm, mean weight 69,7 ± 9,9 kg) in the control group and ten (mean age ±SD, 37,7 ± 12,5 years, mean height ± SD, 1,70 ± 0,09 cm, mean weight 63,9 ± 7,5 kg) in the amputee group participated in the study. A dynamometer Biodex System 3 Pro was used to measure torque and mechanical work in four (0º, 10º, 20º e 30) hip abduction positions during hip abduction and adduction efforts, and four (0º, 30º, 60º e 90) hip abduction positions during hip flexion and extension. Concentric and eccentric contractions were evaluated during 30º/s, 90º/s and 150º/s. Results: The amputee group presented significant reduction in the isometric torque generated in the ipsilateral side, mainly when the muscle was further stretched. For concentric and eccentric contractions, in high angular velocity, the control group presented significantly higher torque values when compared with the both sides of the amputee group. Interestingly, the torque and mechanical work generated by the amputee group, in both sides, were significantly higher compared with the control group. Mechanical work might be an important parameter to understand muscular conditions in the amputee population. Conclusion: The present study showed that transfemoral amputees have alterations in hip muscles torque and mechanical work generation, in the involved and uninvolved side, according to the joint position and angular velocity.