Maximum number of repetitions at different percentages of maximum strength in older men: a crossover study

Abstract Introduction: Based on the inverse relationship between the amount of weight lifted and the maximum number of repetitions (RM) performed, the intensity prescription method based on a percentage of maximum strength (%1RM) has been widely used in different populations, including older adults. However, considerable inter-individual variability in RM performed at a given %1RM has been reported in previous studies on this topic. Aim: To compare the number of repetitions performed at 60, 75, and 90%1RM in lower and upper limb resistance exercises in older adults. Methods: Fifteen men aged between 60 and 75 years performed two preliminary sessions (familiarization + and 1RM tests) and three experimental sessions (RM tests at 60, 75, and 90%1RM on knee extension and elbow flexion exercises). Movement velocity for each concentric and eccentric muscle action was 1.5-2 s. Statistical comparisons regarding the RM performed in each %1RM were tested using the Generalized Estimating Equations analysis. Results: The RM during knee extension exercise was significantly lower when compared to elbow flexion at 60% 1RM. On the other hand, the RM during knee extension exercise was significantly higher when compared to elbow flexion at 90%1RM. A similar number of repetitions at 75%1RM were performed in both exercises. Conclusion: Physically active older men can perform different RM at 60% and 90%1RM in knee extension and elbow flexion exercises, suggesting that the use of a specific RM range cannot be associated to the same percentage of 1RM in this individuals.

Effect of the execution order from concurrent exercise session on blood pressure responses in hypertensive older men

Abstract Aim: To compare blood pressure (BP) responses among the different orders of execution of concurrent exercise (CE) sessions in controlled hypertensive older men. Methods: Fifteen older men (64 ± 5 years) participated in three randomized crossover sessions: control session (C), CE in aerobic-resistance order (AR), and resistance-aerobic order (RA). The CE was performed for 1 h, in which 30 min were for the resistance exercise with 5 exercises at 70% of 1RM and 30 min for the aerobic exercise on a treadmill with intensity corresponding to the first ventilatory threshold. Clinical systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean blood pressure (MBP) were measured at rest and over 2 h and 24 h after the session. For analysis, the Generalized Estimating Equations (GEE) test was used with Bonferroni's complimentary test (α = 0.05). Results: The SBP decreased by 30 min after AR, while after RA we obtained reductions during 1 h after a session concerning rest. Between sessions, we found lower values in both CE compared to the C at 30 min, 45 min, and 90 min. In the RA there was a lower pressure in relation to the C at minute 60. The DBP reduced 30 min after the AR regarding the pre-session, however with no difference between sessions. The MBP was lower in relation to 30 min rest after AR. Among sessions, a pressure drop was observed in the AR compared to the C at 30 min and 45 min. Conclusion: We can conclude that the CE was effective in generating post-exercise hypotension regardless of the order in controlled hypertensive older men.

Functional capacity and quality of life of older adults practitioners of câmbio: a cross-sectional study

Abstract Aim: This study aimed to evaluate the levels of functional capacity and quality of life in older adult practitioners of câmbio. Methods: This is a cross-sectional analytic study that evaluated men and women aged over 60 years, practitioners of câmbio in the Rio Grande do Sul, Brazil. The participants underwent a functional capacity assessment, composed of the sit- and stand-up and handgrip tests. In addition, quality of life was assessed through the WHOQOL-bref questionnaire. Results: Participants were 69 ± 6 years and had a body mass index of 27.9 ± 4.1 kg/m2. The participants practiced câmbio approximately 2.7 ± 1.2 times per week. Regarding the quality of life, results according to the domains of the questionnaire, it was observed that the participants presented values above 75% of the maximum possible. Regarding the performance in the sit- and stand-up test, participants had mean of 22 repetitions (95%CI: 20 to 23) and the average time for 5 repetitions was 7.1 seconds (6.8 to 7.5). In the grip strength test, participants had mean 35 kg (95%CI: 33.7 to 38.2). Conclusion: Older adult practitioners of câmbio presented satisfactory levels of quality of life and a good functional capacity.

Interval training during concurrent training optimizes cardiorespiratory adaptations in women / Exercício intervalado durante o treinamento concorrente otimiza as adaptações cardiorrespiratórias em mulheres

Abstract This study compared the effects of using continuous and interval aerobic exercise during concurrent training on cardiorespiratory adaptations in women. Thirty-two participants were randomly assigned into one of the following groups: continuous running and resistance training (C-RUN, n = 10), interval running and resistance training (I-RUN, n = 11), or control group that performed resistance training only (RT, n = 11). Each group trained twice a week during 11 weeks. Oxygen uptake corresponding to the first ventilatory threshold (VO2VT1), second ventilatory threshold (VO2VT2) and maximal effort (VO2max) was measured in a maximal incremental test performed before and after training. Significant increases in VO2VT1, VO2VT2 and VO2max were observed in all training groups. VO2VT2 and VO2max presented time-group interactions, indicating that the magnitude of the increase in these variables was dependent on the training group (VO2VT2: C-Run = 6.6%, I-Run = 15.7%, RT = 1.7%; VO2max: C-Run = 7.2%, I-Run = 14.3%, RT = 2.7%). The effect size observed for post-training values comparing C-RUN and RT groups was d = 0.566 for VO2VT2 and d = 0.442 for VO2max. On the other hand, values of d = 0.949 for VO2VT2 and d = 1.189 for VO2max were verified between I-RUN and RT groups. In conclusion, the use of continuous and interval aerobic exercise during concurrent training improved different cardiorespiratory parameters in women, but in a greater magnitude when interval aerobic exercise was performed simultaneously to resistance training.

Resumo O presente estudo comparou os efeitos do uso de exercício aeróbio contínuo e intervalado durante o treinamento concorrente nas adaptações cardiorrespiratórias de mulheres. Trinta e duas participantes foram randomizadas em três grupos de treinamento: corrida contínua + treinamento resistido (C-RUN, n = 10), corrida intervalada + treinamento resistido (I-RUN, n = 11), e apenas treinamento resistido (RT, n = 11). Cada grupo treinou 2 vezes por semana ao longo de 11 semanas. Foi avaliado o consumo de oxigênio correspondente ao primeiro (VO2VT1) e segundo (VO2VT2) limiar ventilatório, bem como o consumo máximo de oxigênio (VO2max) antes e depois dos treinamentos. Foram encontrados aumentos significativos no VO2VT1, VO2VT2 e VO2max ao final do período de treinamento nos três grupos. Ainda, foi encontrada interação tempo*grupo nas variáveis VO2VT2 e VO2max , sugerindo que a magnitude de alteração foi dependente do tipo de treinamento realizado (VO2VT2: C-Run = 6,6%, I-Run = 15,7%, RT = 1,7%; VO2max: C-Run = 7,2%, I-Run = 14,3%, RT = 2,7%). Da mesma forma, diferentes tamanhos de efeito foram observados ao final do treinamento, de acordo com a intervenção realizada (C-RUN versus RT d = 0,566 para o VO2VT2 e d = 0,442 para o VO2max; I-RUN versus RT d = 0,949 para o VO2VT2 e d = 1,189 para o VO2max). Embora o uso de exercício aeróbio contínuo e intervalado durante o treinamento concorrente tenha sido efetivo em promover adaptações cardiorrespiratórias em mulheres, os ganhos obtidos foram maiores quando o exercício intervalado foi associado ao exercício resistido.

A cobertura jornalística da cerimônia de abertura dos Jogos Olímpicos de Londres 2012 e a repercussão na rede social Twitter / The journalistic coverage of the opening ceremony of the London Olympic games 2012 and the repercurssion in Twitter / La cobertura periodística de la ceremonia de apertura de los Juegos Olímpicos de Londres 2012 e la repercusión en lo twitter

O presente texto é parte de uma pesquisa coletiva que analisou, de forma comparativa, a cobertura jornalístico-esportiva dos Jogos Olímpicos de Londres 2012 (JO/2012) entre a Rede Record, detentora brasileira dos direitos de transmissão do evento, e as demais emissoras de TV aberta do país, com o interesse na cerimônia de abertura. Constituíram-se como corpus de análise os conteúdos veiculados, no dia da abertura, nos jornais da Record, da Globo e da Band. A fim de ampliar o conteúdo de comparações, optou-se, ainda, pelo monitoramento de postagens sobre a cerimônia no Twitter. A base teórico-metodológica utilizada foi a Análise de Enquadramento, comum à pesquisa maior. Na discussão, a cerimônia de abertura do megaevento esportivo se apresentou como um produto audiovisual propício ao entrelaçamento de características mercadológicas e interesses midiáticos-esportivos, que se refletiram no posicionamento, na construção do discurso e na veiculação dos conteúdos jornalísticos sobre os JO/2012.

This text is part of a collective research that examined, in a comparative way, the journalistic-sports coverage of the Olympic Games London/2012 (OG 2012) besides Rede Record, Brazilian holder of broadcast rights to the event, and other open TV stations in country, whose interest focused on the opening ceremony. The analisys corpus were the broadcast content, on opening day, on Record, Globo and Band news. In order to expand the comparisons content, it was decided also by monitoring postings about the ceremony on Twitter. The theoretical-methodological basis used was Analysis Framework, common to most research. In the opening ceremony discuss of the sports mega event is presented as a new audio-visual product propitious to market characteristics interlacement and media-sporting interests, which is reflected in the positioning, in the construction of speech and placement of journalistic news content about OG 2012.

Este texto forma parte de una investigación colectiva que examinó, de manera comparativa, la cobertura periodística de los deportes de los Juegos Olímpicos London/2012 (JO 2012), además de la Rede Record, titular brasileña de derechos de transmisión para el evento, y otras estaciones de televisión abierta en el país, cuyo el interés se centró en la ceremonia de inauguración. Corpus a los análisis fueron el contenido de las emisiones, en la jornada inaugural, en la Record, Globo y noticias Band. Con el fin de ampliar el contenido de las comparaciones, se decidió también por el seguimiento de publicaciones sobre la ceremonia en Twitter. El fundamento teórico-metodológico utilizado fue el Análisis de Marco, común a la mayoría de investigaciones. En la ceremonia de apertura discutir de los deportes mega evento se presenta como un nuevo producto audiovisual propicio a las características del mercado y los medios de comunicación-entrelazamiento deportivos intereses, lo que se refleja en el posicionamiento, en la construcción del discurso y la colocación de contenido de noticias periodísticas sobre JO 2012.

Casos reais de implantação do modelo de gestão do conhecimento para a administração pública brasileira: o caso da Fundação Oswaldo Cruz / Texto para Discussão (TD) 2075 : Casos reais de implantação do modelo de gestão do conhecimento para a administração pública brasileira : o caso da Fundação Oswaldo Cruz

"Analisa como três unidades técnico-científicas e gerenciais da Fundação Oswaldo Cruz (Fiocruz) adotaram o modelo de gestão do conhecimento para a administração pública brasileira (MGCAPB) e a metodologia de implementação da gestão do conhecimento (GC) propostos em livro publicado pelo Ipea (Batista, 2012)."

Cultura colaborativa e gestão do conhecimento em esporte e lazer / Collaborative culture and knowledge management in sport and leisure

A partir da experiência de desenvolvimento e administração do RIRC, um projeto realizado pelo LaboMídia/UFSC com o apoio da Rede CEDES/Ministério do Esporte, delimitamos o uso desse repositório digital como objeto de pesquisa de uma dissertação de mestrado. Dessa forma, organizamos esse trabalho com base nas discussões teóricas que envolvem a gestão da informação e do conhecimento no âmbito do esporte e lazer brasileiro, sobretudo, pelos princípios do movimento mundial a favor da promoção do acesso aberto à informação e conhecimento científico. Nesse contexto, investigamos como o RIRC era percebido pelos gestores e pesquisadores da Rede CEDES, durante os anos de 2010 e 2011. A delimitação deste problema de pesquisa criou condições para observar e refletir sobre o compromisso social e político dos integrantes da Rede CEDES em organizar e disponibilizar as produções dessa ação ministerial. Sendo assim, descrevemos, analisamos e refletimos sobre a percepção dos integrantes da Rede CEDES em relação ao RIRC, no escopo da gestão da informação e do conhecimento em esporte e lazer. Realizamos treze entrevistas com os integrantes da Rede CEDES no período de 19/11/2010 até 14/09/2011 e utilizamos algumas estatísticas do RIRC e da própria rede como dados. Por conta dessa estrutura, esta pesquisa se caracterizou como um estudo de caso qualitativo, entendimento que nos orientou durante a coleta, análise, discussão e interpretação dos dados. Após a construção dos caminhos teóricos e metodológicos definimos quatro eixos de discussão dos dados: a) Contexto sócio-histórico de construção da Rede CEDES; b) O processo de desenvolvimento do RIRC; c) O RIRC como política pública; e d) O RIRC no contexto da cultura participativa. O diálogo entre esses eixos e o referencial teórico fundamenta a apresentação dos achados desta pesquisa, dos quais destacamos inicialmente que o RIRC é percebido pelos integrantes da Rede CEDES entrevistados como uma iniciativa relevante...

From the development and administration experiences of RIRC, a project undertaken by LaboMídia/UFSC with the support of CEDES Network/Ministry of Sports, we delimited the use of this digital repository as an object for research of one master's degree dissertation. Thus, we organize this work based on theoretical discussions that involve the information and the knowledge management in the fields of sport and leisure in Brazil, especially, with the principles of the worldwide movement that emphasizes the promotion of open access to scientific information and knowledge. In this context, we investigated how the RIRC was perceived by managers and researchers of the CEDES Network during the first year of the system's operation. The delimitation of this research's problem, created conditions to observe and to ponder over the social and political commitment of the CEDES Network's members, to organize and to make the results of this action accessible. Therefore, we describe, analyze and reflect on the perception of this CEDES Network members in relation to RIRC, in the scope of the information and knowledge management in sport and leisure. We conducted interviews with thirteen members of the CEDES Network and used some statistics of the RIRC and from CEDES Network as data. Because of this structure, this research is characterized as a qualitative case study, this understanding guided us during the gathering, analysis, discussion and interpretation of data. After the construction of the theoretical and methodological structure, we defined four axes of discussions: a) socio-historical context of the building process of the CEDES Network; b) The development process of the RIRC; c) The RIRC as public policy; and d) The RIRC in context of participatory culture. The dialogue between these axes and the theoretical framework legitimize the purpose behind the presentation of the research's findings, which initially highlight the fact that RIRC...

Bicicleta, lazer e mobilidade urbana: uma experiência em mídia-educação / Bicycle, leisure and urban mobility: an experience in a media literacy

Esse texto relata um processo produtivo de mídia-educação, que resultou na realização de um vídeo, desenvolvido no campo da Educação Física. Seu objetivo foi provocar uma reflexão sobre o uso da bicicleta como alternativa de lazer e mobilidade urbana, a partir de uma perspectiva social crítica, com base na Mídia-Educação e na Antropologia Visual. O texto descreve, fundamenta e analisa a produção do material didático, sistematizando um conjunto de reflexões teórico-metodológicas que podem servir de suporte para intervenções pedagógicas que pensem as possibilidades da bicicleta como lazer e opção modal.

This text reports an experience about a producing process in Media Literacy, which results in a video that was developed in the health education . The aim of this work is to promote cycling as leisure and urban mobility in a critical social perspective, Media Literacy and Visual Anthropology. The text describe, present a theoretical base and analyze the production of a didactical object with intent to organize some theoretic and methodological thoughts that's main support pedagogical processes to think the bicycle as possibility of leisure and modal choice.