Treinamento aeróbio e diabetes experimental em ratos: perfil endócrino-metabólico no cerebelo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Influência dos genótipos / haplótipos das posições polimórficas -786T > C, 894G > T e Íntron 4b / a do gene NOS3 sobre o sistema cardiovascular e a atividade das enzimas antioxidantes em adultos submetidos ao treinamento físico aeróbio

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Efeito do treinamento aeróbio nos níveis plasmáticos do fator neurotrófico derivado do cérebro, variáveis metabólicas e funções cognitivas em idosos com a doença de Alzheimer

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Um olhar sobre a formação de professores de matemática a distância

Os professores de Matemática, assim como os que ensinam as demais disciplinas nos cursos de nível fundamental e médio, deparam com vários fatores desestimulantes:fraco desempenho dos alunos, currículos desinteressantes, deficiência na própria formação. Diante desse quadro, a autora investigou uma alternativa à formação tradicional de professores de Matemática. Ela analisa a educação a distância para tentar identificar se esse meio seria adequado para promover tanto a formação inicial quanto a continuada dos docentes da disciplina. Ela se baseia em um caso exemplar: o curso de licenciatura em Matemática a distância do Centro de Educação Superior a Distância do Rio de Janeiro (Cederj), que integra a Universidade Aberta do Brasil (UAB), ligada ao Ministério da Educação. O curso serve de modelo para outros cursos da UAB. A autora apresenta a implementação do projeto desde a etapa inicial, avaliando documentos e um grande volume de entrevistas, principalmente com alunos formados no curso, mas também com professores e gestores. O estudo capta diversos aspectos do curso da Cederj/UAB, como as expectativas dos alunos em relação ao processo de ensino e aprendizagem, as dificuldades que encontraram, a forma como tinham acesso às aulas a distância, o comportamento diante dos colegas nos encontros presenciais e os resultados práticos da formação. As conclusões da autora incluem pontos positivos e deficiências, mas ela levanta subsídios importantes para a discussão sobre o uso do instrumento educação a distância na formação de professores de Matemática.

Treinamento aeróbio de natação aumenta a atividade de enzimas antioxidantes e o conteúdo de glicogênio no musculoesquelético de ratos

INTRODUCTION: Studies which verified the effects of physical exercise on oxidative stress biomarkers and its relation to muscle glycogen are lack. OBJECTIVE: The present study verified the effects of aerobic swimming training (AST) on biomarkers of oxidative stress, glycogen content and cell growth in the skeletal muscle of rats. METHODS: Eighteen male Wistar rats (60 days) were divided into two groups: Sedentary Group (SG; n = 10): sedentary rats; and Trained Group (TG; n = 8): rats subjected to AST (5.0% of body weight), 1h/day, 5x/week, during 8 weeks. The activity of antioxidant enzymes (AOE) superoxide dismutase (SOD; U/ml), catalase (CAT; µmol/min/100mg), glutathione peroxidase (GPx; nmol/min/100mg), and substances that react with thiobarbituric acid levels (TBARs; nmolMDA/mg protein) were determined in the right gastrocnemius muscle. Glycogen (mg/100mg), protein (g/100g), and DNA (g/100g) contents were evaluated in the left gastrocnemius muscle. Data were analyzed by Student t-test (p < 0.05). RESULTS: AOE activity was higher in the TG group (CAT: 0.87 ± 0.04; SOD: 6.49 ± 0.45; GPX: 6.49 ± 0.52) when compared to SG group (CAT: 0.52 ± 0.03; SOD: 4.10 ± 0.37; GPx: 2.87 ± 0.35). TBARs levels was lower in TG (TG: 2.35 ± 0.45; SG: 8.90 ± 0.47). Gastrocnemius glycogen content (SG: 0.108 ± 0.013; TG: 0.320 ± 0.012) and protein/DNA ratio (SG: 24.94 ± 3.25; TG: 41.68 ± 4.02) were higher in TG group. CONCLUSION: Altogether, these data provide evidence that AST improved antioxidant defense, which may be associated to higher glycogen content of skeletal muscle of the animals.

Utilização da distância total percorrida no teste específico de hoff como preditor da velocidade de limiar anaeróbio no futebol

OBJECTIVE: To verify the use of maximal running distance performed on Hoff test to predict the anaerobic threshold speed (sAnT). METHODS: Ten young soccer players (age of 17 ± 1 years and body mass of 64.3 ± 2.1 kg) were subjects of the study. The subjects performed 12-min test, lactate minimum test to estimate the anaerobic threshold speed and a field test called Hoff. The purpose of Hoff test was to cover the maximum distance during a period of 10min moving a soccer ball through the track by dribbling. RESULTS: The distance covered during 12-min was 2673.2 ± 64.7 m, the sAnT was 11.6 ± 0.3 km.h-1 and distance covered during test Hoff test was 1458.7 ± 49.6 m. The distance covered during Hoff test was not significantly correlated with sAnT (r = -0.20; P > 0.05) and distance covered during 12-min test (r = -0.15; P > 0.05). The sAnT did not differ of speed correspondent 90% at 12-min speed and they were statistically correlated (r = 0.65). CONCLUSION: Thus, we concluded that maximal distance covered during Hoff test cannot provides a valid prediction of the anaerobic threshold speed.

Efeito do treinamento contrarresistência e isoflavona na densidade mineral óssea em mulheres na pós-menopausa

This study aimed to investigate the independent and additive effects of counter-resistance training (RT) and soy isoflavone supplement (ISO) on bone mineral density (BMD) and bone turnover in postmenopausal women. This study used a placebo-controlled, double-blinded (soy), randomized two (ISO vs. placebo) x two (RT vs. no RT) design. Eighty sedentary postmenopausal women, aged 45-70 years, were randomly assigned to one of four groups (71 completed a 9-month intervention): RT+ISO (n=15); no RT+ISO (n=20); RT+placebo (n=18); no RT+placebo (n=18). Participants randomized to ISO received 100mg/ day/oral of soy isoflavone; and those to RT attended supervised counter-resistance training sessions at least twice a week. At baseline and 9-month, BMD was estimated by dual-energy X-ray absorptiometry (DXA). Serum levels of C-terminal cross-linked telopeptide of type I collagen (CTX), osteocalcin, and insulin-like growth factor-1 (IGF-1) were measured as bone turnover. ANOVA with time as the repeated measure and test t were used in the statistical analysis. After 9 months of intervention, neither ISO nor RT alone affected BMD at any site or levels of CTX, osteocalcin, and IGF-1 (p>0.05). ISO and RT had no additive effects on BMD and bone turnover. RT groups showed significantly increased muscle strength (+ 35.2%) (p=0.02). We found no additive effects of resistance training and soy isoflavone on bone mineral density or bone turnover in postmenopausal women after 9-months.

Efeito do treinamento com pesos na pressão arterial de repouso em idosas normotensas

INTRODUCTION: Resistance training (RT) has been widely used for older adults in order to minimize or reverse the deleterious effects of aging in the neuromuscular system. However, the potential benefits of RT on arterial blood pressure and heart rate at rest in older adults remain controversial. OBJECTIVE: To analyze the effect of eight weeks of RT on systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP) and heart rate (HR) in older women without hypertension. METHODS: Seventeen women (aged 66.0 ± 5.8 years) without previous experience in RT were randomly assigned to either a training (TG, n = 10) or control (CG, n = 7) groups. Hemodynamic parameters at rest were evaluated by auscultatory method (mercury sphygmomanometer) and HR monitor (Polar), before and after eight weeks of experimental period. RESULTS: Reductions attributable to RT were found only to SBP (-13.4 mmHg, p <0.01). Although significant reductions were observed for DBP and MBP, the analysis of covariance showed no interaction Group x Time significant. CONCLUSION: RT proved an effective training to promote adaptations in the cardiovascular system of older women without hypertension. Eight weeks of RT can significantly reduce SBP at rest in older women.

Formação para o ensino agrícola nos Centros de Treinamento de Professores e de Auxiliares Rurais (1952-1963)

This paper analyzes agricultural education as proposed and developed by the National Campaign for Rural Education (1952-1963) in Training Centers for Rural Teachers and Assistants. It analyzes the curricula of such courses published by the campaign in special issue, number 10 in 1961/1962. Agricultural education was a part of rural education and aimed to train rural teachers and expand the knowledge of rural men to make them remain in their environment. This training aimed to address the shortage of rural teachers, of agricultural knowledge, rural hygiene, strongly guided by the education of manners, of how to behave at the table and by the appreciation of rational leisure, together with campaigns for civil and marriage registration, a campaign for trees, encouragement to elect representatives to boards as a means of educating for citizenship. Such lack of rural teachers and the complaints about low wages disclose the practices of our current rulers who devalue the teaching profession.

Objetos de Aprendizagem como recurso pedagógico em contextos inclusivos: subsídios para a formação de professores a distância

This article aims to contribute to the process of inclusion of students with disabilities in regular schools by reporting the results of a survey that aimed to verify whether Learning Objects (LO) are efficient tools in constructing teaching and learning of subject content within the inclusive education context. Participant, tutor and trainer experiences of a distance learning Ministry of Education (MEC) course on Assistive Technology were analyzed. The course was offered to public schools teachers from all over the country. The course activities were recorded in a Virtual Learning Environment (VLE) called TelEduc, along with group reports of course participants. Three categories were selected for data analysis: a) interactivity and feedback from the team trainer; b) applicability of the content covered in the course, and c) new learning. The results showed that LO can promote the learning of subject content. Having been designed as educational resources to support teaching and learning, they can enhance educational inclusion of people with disabilities. As for the process of distance formation for teachers, the course contributed to consolidating sound and efficient training of participants by providing: a closer encounter with the world of technology, the possibility of integration of technology in the classroom; conducting theoretical and practical studies, appreciation of diversity and all students' potential; innovations in strategies and learning resources and reflective action.

Análise morfológica do músculo gastrocnêmio medial de ratos submetidos a um protocolo de treinamento concorrente

The aim of this study was to analyze the morphophysiological changes of medial gastrocnemius muscle (GM) of Wistar rats underwent to eight weeks of concurrent training (TC). We used fifteen male Wistar rats divided into three groups with five animals each: baseline (LB), control (C) and trained (T). The TC consisted of aerobic endurance training in swimming (TRA) and a forced training (TF) in the same session, three times per week, for eight weeks. There was an increase of 4.4% in the comparison between average cross section area of the GM in animals of groups T (4905,5 ± 77,1µm²) and C (4699,9 ± 78,3 µm²). It is concluded that concurrent training was effective in causing hypertrophy in GM of rats.

Treinamento físico e antioxidantes enzimáticos no tecido cerebral de ratos diabéticos experimentais

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Treinamento individualizado aeróbio, resistido e concorrente: efeitos sobre os marcadores de estresse oxidativo em ratos Wistar

Pós-graduação em Ciências da Motricidade - IBRC

Uma contribuição ao estudo do ensino de educação física à distância

Pós-graduação em Desenvolvimento Humano e Tecnologias - IBRC

Tecnologias da Informação e Comunicação e o salto em distância: possibilidades de utilização de um DVD didático para o ensino do atletismo escolar

Pós-graduação em Desenvolvimento Humano e Tecnologias - IBRC