67 research outputs found

    Volume total e nĂșmero de repetiçÔes mĂĄximas durante sĂ©ries de treinamento resistido: mĂ©todo tradicional vs sĂ©rie agonista-antagonistado

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    OBJETIVO: Comparar volume total e nĂșmero repetiçÔes mĂĄximas (nRM) que pode ser realizado nos exercĂ­cios rosca direta (RD) e trĂ­ceps na polia (TP), variando a ordem de execução, nos mĂ©todos tradicional (TRAD) e sĂ©rie pareada agonista-antagonista (SPAA). MÉTODOS: Doze indivĂ­duos (22±3,5 anos) com experiĂȘncia em treinamento resistido (TR), compareceram a 10 sessĂ”es com intervalo de 48 a 72 horas entre elas. ApĂłs avaliação antropomĂ©trica, trĂȘs sessĂ”es de familiarização e realização de testes de uma repetição mĂĄxima (1-RM) e reprodutibilidade de 1-RM, foram realizados quatro protocolos experimentais para mensuração do nRM, utilizando 70% de 1-RM: TRAD1 (quatro sĂ©ries no exercĂ­cio RD + quatro sĂ©ries no exercĂ­cio TP); TRAD2 (quatro sĂ©ries no exercĂ­cio TP + quatro sĂ©ries no exercĂ­cio RD); SPAA1 (quatro sĂ©ries no exercĂ­cio RD e TP) e; SPAA2 (quatro sĂ©ries no exercĂ­cio TP e RD). Sob o mĂ©todo TRAD, foram implementados intervalos de 90 segundos entre todas sĂ©ries realizadas; um intervalo de descanso de dois minutos foi implementado entre a conclusĂŁo da Ășltima sĂ©rie do primeiro exercĂ­cio e a primeira sĂ©rie do segundo exercĂ­cio (RD + TP ou TP + RD). Sob o mĂ©todo SPAA, nenhum intervalo foi implementado entre o primeiro e segundo exercĂ­cio (RD e TP ou TP e RD); noventa segundos de intervalo de descanso foram implementados apĂłs conclusĂŁo do primeiro e do exercĂ­cio subsequente.RESULTADOS: NĂŁo foram observadas diferenças no volume total e percepção subjetiva do esforço (PSE) entre os protocolos experimentais, enquanto foi verificado maior nRM no exercĂ­cio TP em comparação com o RD em todos os protocolos utilizados.CONCLUSÃO: Na intensidade de 70% de 1-RM, o volume total nĂŁo Ă© influenciado pelo mĂ©todo de TR (TRAD ou SPAA) e pela ordem dos exercĂ­cios (RD e TP ou TP e RD). Adicionalmente, observou-se que o nRM parece ser influenciado pelo grupamento muscular utilizado.ABSTRACT. Total volume and maximum number of repetitions performed during resistance training sets: traditional versus agonist-antagonist set methods.OBJECTIVE: To compare the total volume and number of maximum repetitions (nMR) that can be performed in barbell curl (BC) and triceps pushdown (TP) exercises, varying order of execution, on traditional (TRAD) and agonist-antagonist paired set (AAPS) methods.METHODS: Twelve individuals (22±3.5 years) with experience in resistance training (RT), attended 10 sessions with an interval of 48 to 72 hours between them. After anthropometric evaluation, three familiarization sessions, one repetition maximum tests (1-RM) and reproducibility, four experimental protocols were performed to measure the total volume and nMR, using 70% of 1-RM: TRAD1 (four sets of exercise BC + four sets of exercise TP); TRAD2 (four sets of TP exercise + four sets of BC exercise); AAPS1 (four sets of exercise BC and TP) and; AAPS2 (four sets of exercise TP and BC). Under the TRAD method, 90-seconds rest intervals were implemented between all sets; two-minute rest interval between the completion the last set of first exercise and the first set of second exercise was implemented (BC + TP or TP + BC). Under the AAPS method, no interval was implemented between first and second exercise (BC and TP or TP and BC); a 90-seconds rest interval after the completion of the first and the subsequent exercise was implemented. RESULTS: There were no differences in total volume and rating of perceived exertion (RPE) between the experimental protocols, while a higher nMR was found in the TP exercise compared to the BC in all protocols used.CONCLUSION: It is concluded that in the intensity of 70% 1-RM, the total volume is not influenced by the TR method (TRAD or AAPS) and by the order of the exercises (BC and TP or TP and BC). Additionally, it was observed that the nMR seems to be influenced by the muscle group used

    Usabilidade e Acessibilidade no Moodle: RecomendaçÔes para o Uso do Ambiente Virtual de Ensino e Aprendizagem pelo PĂșblico Idoso

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    O pĂșblico idoso tem, em geral, caracterĂ­sticas fĂ­sicas, fisiolĂłgicas e cognitivas que dificultam a interação com produtos e sistemas, particularmente com os ambientes virtuais. Este artigo tem como objetivo identificar recomendaçÔes de usabilidade e acessibilidade para o Moodle, um ambiente virtual de ensino e aprendizagem, voltado ao pĂșblico idoso. Primeiramente foram identificadas as principais funcionalidades do Moodle, sua estrutura, as barreiras de acesso, entre outras caracterĂ­sticas. Depois, a partir da literatura, foram identificadas as caracterĂ­sticas e conseqĂŒĂȘncias do envelhecimento que podem influenciar no uso dos AVEAs pelo idoso. Por fim, foram identificadas na literatura recomendaçÔes de usabilidade e acessibilidade para interfaces em geral. O estudo resultou em recomendaçÔes de usabilidade e acessibilidade para o AVEA, alteraçÔes funcionais enfrentadas pelos idosos e avaliação heurĂ­stica do Moodle do IFSC. Concluiu-se que as recomendaçÔes de usabilidade e acessibilidade propostas podem auxiliar na inclusĂŁo digital do idoso, facilitando o seu aprendizado e o uso do ambiente. Os desenvolvedores devem considerar as recomendaçÔes propostas para criar ambientes com interfaces mais amigĂĄveis, que eliminem as barreiras de acesso e comunicação na interação sistema-idoso, por meio de terminologias mais claras, sem duplo sentido, com prevenção de erros, navegação consistente, melhor organização das informaçÔes, maior legibilidade entre outros

    MÉTODO TRADICIONAL VS. SÉRIE PAREADA AGONISTA-ANTAGONISTA PARA MEMBROS INFERIORES: HÁ DIFERENÇAS NO VOLUME TOTAL E REPETIÇÕES MÁXIMAS?

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    The objective was to compare the total volume and number of maximum repetitions (nMR) that can be performed in Leg Extensions (EXT) and Leg Flexion (FLEX), varying order of execution in traditional (TRAD) and agonist-antagonist paired set (AAPS) methods. Total volume and nMR of twelve men (22.8±2.7years) were evaluated (p<0.05) in four protocols: TRAD1 (4 sets EXT + 4 sets FLEX); TRAD2 (4 sets FLEX + 4 sets EXT); AAPS1 (4 sets EXT and FLEX) and; AAPS2 (4 sets FLEX and EXT). The total volume of the AAPS2 was greater than TRAD1 and TRAD2. Higher nMR was observed in FLEX compared to EXT in all protocols. It was concluded that depending on the method chosen and order of exercises, a greater total volume can be performed. Additionally, the nMR that can be performed in each resistance exercise seems to be influenced by the muscle group.El objetivo fue comparar el volumen total y nĂșmero de repeticiones mĂĄximas (nRM) en ExtensĂ­on de piernas (EXT) y flexiĂłn de piernas (FLEX), variando el orden de ejecuciĂłn, en lo mĂ©todo tradicional (TRAD) y serie emparejada agonista-antagonista (SEAA). El volumen total (p<0,05) y el nRM de doce hombres (22,8±2,7años) fue evaluado en cuatro protocolos: TRAD1 (4 series EXT + 4 series FLEX); TRAD2 (4 series FLEX + 4 series EXT); SEAA1 (4 series EXT y FLEX); SEAA2 (4 series FLEX y EXT). El volumen total del protocolo SEAA2 fue mayor que TRAD1 y TRAD2. Se observĂł uno nRM mĂĄs altas en FLEX en comparaciĂłn con EXT en todos los protocolos. Se concluye que dependiendo del mĂ©todo adoptado y el orden de los ejercicios se puede realizar un mayor volumen total. AdemĂĄs, la nRM que se puede realizar en un ejercicio de fuerza parece estar influenciada por el grupo muscular utilizado.Objetivou-se comparar o volume total e nĂșmero repetiçÔes mĂĄximas (nRM) que pode ser realizado nos exercĂ­cios Cadeira Extensora (EXT) e Cadeira Flexora (FLEX), variando ordem de execução, nos mĂ©todos tradicional (TRAD) e sĂ©rie pareada agonista-antagonista (SPAA). Avaliou-se (p<0,05) volume total e nRM de doze homens saudĂĄveis (22,8±2,7anos), em quatro protocolos: TRAD1 (4 sĂ©ries EXT + 4 sĂ©ries FLEX); TRAD2 (4 sĂ©ries FLEX + 4 sĂ©ries EXT); SPAA1 (4 sĂ©ries EXT e FLEX) e; SPAA2 (4 sĂ©ries FLEX e EXT). O volume total do protocolo SPAA2 foi maior do que no TRAD1 e TRAD2. Foi observado maior nRM no FLEX em comparação com EXT em todos os protocolos utilizados. Conclui-se que dependendo do mĂ©todo adotado e ordem dos exercĂ­cios maior volume total pode ser realizado. Adicionalmente, o nRM que pode ser executado em um determinado exercĂ­cio resistido parece ser influenciado pelo grupamento muscular utilizado

    Paracoccidioidomicose do sistema nervoso central: relato de caso

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    The involvement of the central nervous system in paracoccidioidomycosis is more frequent than previously thought. The first reference to the possibility that Paracoccidioides brasiliensis could affect the central nervous system was by Pereira & Jacobs in 1919. Since then, a great number of other studies has showed this form of clinical behavior and, in some of them, the frequency has ranged 27.27%. We report a clinical case of a 34-year-old white Brazilian woman admitted because of bacterial pneumonia. In the sixth day of admission, the patient developed cerebellar symptomatology with nausea, vomiting, dysmetria and gait disturbance. Central nervous system computer tomographic scanning disclosed a hypodense lesion in the right cerebellar hemisphere. The patient was submitted to surgery with total excision of the lesion. Histopathological examination confirmed the diagnosis of neuroparacoccidioidomycosis. Coadjuvant treatment with sulfamethoxazole-trimetoprim was introduced. The patient had a good outcome and was discharge 30 days after surgery.O envolvimento do sistema nervoso central na paracoccidioidomicose vem ganhando importĂąncia dentro do espectro de manifestaçÔes clĂ­nicas da doença. O primeiro registro na literatura de que o Paracoccidioides brasiliensis seria tambĂ©m capaz de comprometer ĂłrgĂŁos do sistema nervoso central foi descrito em 1919 por Pereira & Jacobs; desde entĂŁo muitos outros estudos tĂȘm demonstrado esta forma de apresentação clĂ­nica, sendo que em alguns sua frequĂȘncia atinge os 27,27%. Descrevemos o caso de uma paciente de 34 anos, residente em Juiz de Fora-MG, admitida com quadro clĂ­nico compatĂ­vel com pneumonia e que durante a internação iniciou sintomatologia cerebelar (nĂĄuseas, vĂŽmitos, ataxia de marcha e dismetria). A tomografia computadorizada de crĂąnio revelou lesĂŁo cerebelar sugestiva de abscesso. O tratamento proposto baseou-se na exerese cirĂșrgica da lesĂŁo e, como a anĂĄtomo-patologia mostrasse presença de leveduras em gemulação mĂșltipla ("roda de leme de navio"), diagnĂłstico de neuroparacoccidioidomicose pĂŽde ser firmado, e o tratamento complementado pela associação de sulfametoxazol-trimetoprim. A paciente evoluiu bem, persistindo discreta paresia e hipoestesia em membro superior direito

    Guidelines for the management of neuroendocrine tumours by the Brazilian gastrointestinal tumour group

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    Neuroendocrine tumours are a heterogeneous group of diseases with a significant variety of diagnostic tests and treatment modalities. Guidelines were developed by North American and European groups to recommend their best management. However, local particularities and relativisms found worldwide led us to create Brazilian guidelines. Our consensus considered the best feasible strategies in an environment involving more limited resources. We believe that our recommendations may be extended to other countries with similar economic standards.Univ Sao Paulo, Inst Canc Estado Sao Paulo, BR-01246000 Sao Paulo, BrazilUniv Sao Paulo, Fac Med, Dept Radiol & Oncol, BR-01246903 Sao Paulo, BrazilHosp Sirio Libanes, BR-01308050 Sao Paulo, BrazilHosp Moinhos de Vento Porto Alegre, BR-90035000 Porto Alegre, RS, BrazilOncoctr, BR-30360680 Belo Horizonte, MG, BrazilUniv Fed Rio Grande do Sul, Dept Cirurgia, BR-90040060 Porto Alegre, RS, BrazilHosp Clin Porto Alegre, BR-90035903 Porto Alegre, RS, BrazilUniv Fed Ceara, Fac Med, Dept Fisiol & Farmacol, BR-60020180 Fortaleza, Ceara, BrazilHosp Univ Walter Cantidio, BR-60430370 Fortaleza, Ceara, BrazilInst Nacl Canc, BR-20230240 Rio De Janeiro, BrazilUniv Sao Paulo, Fac Med, Disciplina Endocrinol & Metabol, BR-01246903 Sao Paulo, BrazilAC Camargo Canc Ctr, Dept Surg, BR-01509010 Sao Paulo, BrazilUniv Sao Paulo, Fac Med, Dept Gastroenterol, Sao Paulo, BrazilUniv Fed Ciencias Saude Porto Alegre, BR-90050170 Porto Alegre, RS, BrazilHosp Albert Einstein, BR-05652900 Sao Paulo, BrazilHosp Base, Fac Med Sao Jose do Rio Preto, BR-15090000 Sao Paulo, BrazilSanta Casa Sao Jose do Rio Preto, BR-15025500 Sao Jose Do Rio Preto, BrazilPontificia Univ Catolica Parana, Hosp Erasto Gaertner, BR-81520060 Curitiba, Parana, BrazilUniv Fed Rio Grande do Norte, BR-59300000 Natal, RN, BrazilUniv Sao Paulo, Inst Coracao, BR-05403900 Sao Paulo, BrazilAC Camargo Canc Ctr, Med Oncol, BR-01509010 Sao Paulo, BrazilUniv Fed Sao Paulo, Disciplina Gastroenterol, BR-04021001 Sao Paulo, BrazilHosp Sao Rafael, BR-41253190 Salvador, BA, BrazilHosp Canc Barretos, Dept Cirurgia Aparelho Digest Alto & Hepatobiliop, BR-14784400 Sao Paulo, BrazilUniv Sao Paulo, Fac Med, Dept Patol, BR-01246903 Sao Paulo, BrazilClin AMO, BR-1950640 Salvador, BA, BrazilHosp Sao Jose, BR-01323001 Sao Paulo, BrazilUniv Nove de Julho, BR-02111030 Sao Paulo, BrazilUniv Fed Sao Paulo, Disciplina Gastroenterol, BR-04021001 Sao Paulo, BrazilWeb of Scienc

    Geographic patterns of tree dispersal modes in Amazonia and their ecological correlates

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    Aim: To investigate the geographic patterns and ecological correlates in the geographic distribution of the most common tree dispersal modes in Amazonia (endozoochory, synzoochory, anemochory and hydrochory). We examined if the proportional abundance of these dispersal modes could be explained by the availability of dispersal agents (disperser-availability hypothesis) and/or the availability of resources for constructing zoochorous fruits (resource-availability hypothesis). Time period: Tree-inventory plots established between 1934 and 2019. Major taxa studied: Trees with a diameter at breast height (DBH) ≄ 9.55 cm. Location: Amazonia, here defined as the lowland rain forests of the Amazon River basin and the Guiana Shield. Methods: We assigned dispersal modes to a total of 5433 species and morphospecies within 1877 tree-inventory plots across terra-firme, seasonally flooded, and permanently flooded forests. We investigated geographic patterns in the proportional abundance of dispersal modes. We performed an abundance-weighted mean pairwise distance (MPD) test and fit generalized linear models (GLMs) to explain the geographic distribution of dispersal modes. Results: Anemochory was significantly, positively associated with mean annual wind speed, and hydrochory was significantly higher in flooded forests. Dispersal modes did not consistently show significant associations with the availability of resources for constructing zoochorous fruits. A lower dissimilarity in dispersal modes, resulting from a higher dominance of endozoochory, occurred in terra-firme forests (excluding podzols) compared to flooded forests. Main conclusions: The disperser-availability hypothesis was well supported for abiotic dispersal modes (anemochory and hydrochory). The availability of resources for constructing zoochorous fruits seems an unlikely explanation for the distribution of dispersal modes in Amazonia. The association between frugivores and the proportional abundance of zoochory requires further research, as tree recruitment not only depends on dispersal vectors but also on conditions that favour or limit seedling recruitment across forest types

    Mapping density, diversity and species-richness of the Amazon tree flora

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    Using 2.046 botanically-inventoried tree plots across the largest tropical forest on Earth, we mapped tree species-diversity and tree species-richness at 0.1-degree resolution, and investigated drivers for diversity and richness. Using only location, stratified by forest type, as predictor, our spatial model, to the best of our knowledge, provides the most accurate map of tree diversity in Amazonia to date, explaining approximately 70% of the tree diversity and species-richness. Large soil-forest combinations determine a significant percentage of the variation in tree species-richness and tree alpha-diversity in Amazonian forest-plots. We suggest that the size and fragmentation of these systems drive their large-scale diversity patterns and hence local diversity. A model not using location but cumulative water deficit, tree density, and temperature seasonality explains 47% of the tree species-richness in the terra-firme forest in Amazonia. Over large areas across Amazonia, residuals of this relationship are small and poorly spatially structured, suggesting that much of the residual variation may be local. The Guyana Shield area has consistently negative residuals, showing that this area has lower tree species-richness than expected by our models. We provide extensive plot meta-data, including tree density, tree alpha-diversity and tree species-richness results and gridded maps at 0.1-degree resolution

    Mudança dos critérios Qualis!

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    Outcomes from elective colorectal cancer surgery during the SARS-CoV-2 pandemic

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    This study aimed to describe the change in surgical practice and the impact of SARS-CoV-2 on mortality after surgical resection of colorectal cancer during the initial phases of the SARS-CoV-2 pandemic
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