Alterações eletrocardiográficas e cardiovasculares em pacientes com infarto do miocárdio pregresso submetidos a programa de reabilitação cardíaca supervisionado

A reabilitação cardíaca é o processo de desenvolvimento e manutenção de nível desejável de atividade física, social e psicológica após o início da doença coronária sintomática, sendo uma terapêutica multiprofissional para a patologia, que é multifatorial. Assim, nas últimas décadas, a prática de exercícios físicos tem sido estimulada entre indivíduos sadios e cardiopatas. Os principais objetivos são: evitar os efeitos negativos do repouso prolongado no leito em pacientes convalescentes de infarto agudo do miocárdio pós-cirurgia cardiovascular, com o retorno mais breve às atividades cotidianas, evitar complicações pulmonares, melhora da capacidade funcional e da qualidade de vida, mudanças de hábitos com modificação de fatores de risco e redução dos índices de morbi-mortalidade

Estudo ergométrico comparativo entre indivíduos portadores de fibromialgia primária e indivíduos normais sedentários

Fibromyalgia is a chronic pain syndrome characterized by generalized musculoskeletal pain that may result in physical inactivity and immobility, The present study has the goal to compare the responses related to the exercise testing parameters of sedentary patients with primary fibromyalgia and patients without patologies. Two groups of sedentary patients were tested in treadmill, Ellestad protocol: Group A (n = 12, mean age = 53,2 years, primary fibromyalgia), Group B (n = 20, mean age = 51,6 years, normal controls). lnterruption criteria for exercise testing were: maximum heart rate reached, physical exhaustion and pain.There were no references of chest pain, nor were observed ischemic changes or arrhythmias during the exam. Statistic testing was done with Student't - testo By comparing the results between groups A and B it was shown that the difference between maximalload and heart rate at the end of test was not significant. Group A interrupted the test earlier (2.1%), developing lower values for total work (21.1%), chronotropic reserve (11.2%), functional capacity (15.6%) and DSBP (15.8%). The electrocardiographic responses during exercise did not show evidences of ischemic response or left ventricular function deficit. The patients of group A presented functional capacity considerably lower than those of group B. The results suggest that the limitations observed are related to the musculoskeletal system.A fibromialgia (FM) é uma síndrome dolorosa crônica caracterizada por dor músculo- esquelética generalizada 1,2.3,4,5 podendo resultar em imobilidade e inatividade física 6. O presente estudo tem por objetivo comparar a resposta de pacientes sedentárias com fibromialgia primária e indivíduos sem patologias frente aos parâmetros do teste ergométrico (TE). Submeteram-se a TE em esteira rolante, protocolo de Ellestad, dois grupos de pacientes sedentárias do sexo feminino: Grupo A (n = 12, média de idade 53,2 anos, portadoras de fibromialgia primária), Grupo B (n = 20, média de idade 51,6 anos, sem patologias). Os critérios de interrupção de TE foram: freqüência cardíaca máxima atingida, cansaço físico, dor e tontura. Não houve referência de precordialgia; não foram observadas alterações isquêmicas ou arritrnias durante o exame. O tratamento estatístico foi teste t de Student. Os resultados comparativos entre os grupos A e B mostraram que quanto à carga máxima comum e freqüência cardíaca final do teste não houve diferença significante entre ambos os grupos. O grupo A realizou menor tempo de exercício (2,1 %) e portanto, menor trabalho total (21,2%), reserva cronotrópica (11,2%), capacidade funcional (15,6%) e OPAS (15,8%). Concluímos que ambos os grupos avaliados sob o aspecto de resposta cardiovascular e eletrocardiográfica ao esforço não mostraram evidências de isquemia ou deficiência da função ventricular esquerda. As pacientes do grupo A apresentaram capacidade funcional significantemente inferior as do grupo B. Os resultados sugerem que as limitações observadas são decorrentes do sistema músculo-esquelético

Brazilian Flora 2020: Leveraging the power of a collaborative scientific network

International audienceThe shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiversity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxonomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis are widely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwide have devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparation of a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to more of the world's known plant species than any other country. Despite that, Flora Brasiliensis, concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plants occurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past 12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on the algal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals. This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plants found in one of the world's most biodiverse countries. We further identify collection gaps and summarize future goals that extend beyond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic to the country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plant groups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still unequally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the country. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades, the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, and plants from Brazil. This project also made all the information freely available online, providing a firm foundation for future research and for the management, conservation, and sustainable use of the Brazilian funga and flora