Ginástica para Todos no Rio Grande do Sul

Introdução: O desenvolvimento esportivo se relaciona com diversos fatores, como exemplo, a atuação do técnico e políticas públicas. Este último perpassa tanto a promulgação de leis e estatutos para o esporte, como a organização e gestão de instituições promotora daquele. Objetivo: O foco de nosso estudo é elencar os desafios e perspectivas dos gestores da federação de ginástica do Rio Grande do Sul no que se refere o progresso da Ginástica para Todos (GPT). Metodologia: Foram entrevistados o presidente e a diretora-técnica da GPT da respectiva federação. Como coleta, utilizou-se da entrevista semiestruturada, gravada e transcrita na íntegra e analisada por meio da Análise de Conteúdo. Resultados: Foi possível detectarmos duas categorias principais: desafios para ampliar a GPT no estado (compreensão da GPT; carga de trabalho; cultura ao alto rendimento) e perspectivas e direcionamentos futuros da gestão com a modalidade (parcerias com universidades; fortalecimento de festivais já organizados). Conclusão: Percebe-se que o estado já realiza ação que se aproxima da GPT (como o festival anual), no entanto as demandas e interesses nas ginásticas artística e rítmica se sobressaem. A interlocução com a universidade coincide com as pesquisas atuais na GPT para seu crescimento no país.

Injuries prevalence in elite male artistic gymnasts

A proposta deste estudo foi investigar a prevalência de lesões na ginástica artística masculina de alto rendimento. Vinte ginastas brasileiros da categoria adulta, com 23,1 ± 6,5 anos, 13,9 ± 5,0 anos de prá- tica no esporte e 36,5 ± 4,7 horas de treino semanais, participaram do estudo. Os atletas responderam o questionário de lesões referidas, formulado a partir de estudos da literatura, para obter informações sobre as características e circunstâncias das lesões. Foram considerados dados sobre o aparelho ou evento do treinamento em que ocorreu a lesão, o local anatômico lesionado, o tecido biológico afetado e o retorno às atividades após a lesão. Os dados foram avaliados por meio de estatística descritiva, a partir das frequências absolutas e relativas. A sobrecarga de treinamento e os aparelhos solo, cavalo com alças e salto sobre a mesa foram os eventos com maior frequência de lesões. Em relação ao local anatômico, tornozelo, mãos/dedos e ombro foram as regiões mais citadas. Os tecidos ligamentares e ósseo, bem como a cápsula articular foram os tecidos biológicos mais afetados. Em relação ao retorno às atividades, 56% relataram melhora, 33% reportaram retorno ao mesmo nível prévio à lesão e 10% relataram piora do desempenho após retorno às atividades. As lesões na ginástica artística masculina estão associadas às demandas mecânicas do esporte. A análise dos fatores de risco contribui no entendimento dos mecanismos das lesões na ginástica, bem como pode auxiliar em estratégias efetivas de prevenção.The purpose of this study was to investigate the injuries prevalence in men elite artistic gymnasts. Twenty Brazilian senior gymnasts, aged 23.1 ± 6.5 years, 13.9 ± 5.0 years of practice and 36.5 ± 4.7 hours per week training, participated in this study. The athletes answered a morbidity questionnaire, formulated according to studies from the literature, for information on the injuries’ characteristics and circumstances. Information about the injury circumstances (gymnastic apparatus, overload training and physical exercises), the anatomic site injured, the affect biological tissue and the return to training after injury treatment were evaluated. Data were analyzed by descriptive statistics, absolute and relative frequencies. The training overload, and floor, pommel horse and vault were the events that presented higher injuries frequency. In relation to anatomic site, ankle, hands/fingers and shoulder were the most cited regions. The ligament, bone and articular capsule were the most affected biological tissues. In relation to gymnasts’ return to their sports activities, 56% of them reported a better condition at return, 33% reported to have returned at the same fitness level and 10% indicated that they were in a worse condition when they returned to the sports activities. The men’s artistic gymnastics injuries are related to the mechanical demands of this sport. The analysis of risk factors helps in understanding the injuries mechanisms in gymnastics, and provides relevant information that can assist in effective prevention strategies

MicroRNA-142 Is Critical for the Homeostasis and Function of Type 1 Innate Lymphoid Cells

Natural killer (NK) cells are cytotoxic type 1 innate lymphoid cells (ILCs) that defend against viruses and mediate anti-tumor responses, yet mechanisms controlling their development and function remain incompletely understood. We hypothesized that the abundantly expressed microRNA-142 (miR-142) is a critical regulator of type 1 ILC biology. Interleukin-15 (IL-15) signaling induced miR-142 expression, whereas global and ILC-specific miR-142-deficient mice exhibited a cell-intrinsic loss of NK cells. Death of NK cells resulted from diminished IL-15 receptor signaling within miR-142-deficient mice, likely via reduced suppressor of cytokine signaling-1 (Socs1) regulation by miR-142-5p. ILCs persisting in Mir142−/− mice demonstrated increased expression of the miR-142-3p target αV integrin, which supported their survival. Global miR-142-deficient mice exhibited an expansion of ILC1-like cells concurrent with increased transforming growth factor-β (TGF-β) signaling. Further, miR-142-deficient mice had reduced NK-cell-dependent function and increased susceptibility to murine cytomegalovirus (MCMV) infection. Thus, miR-142 critically integrates environmental cues for proper type 1 ILC homeostasis and defense against viral infection

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