13 research outputs found

    Metodologias ativas aplicadas à formação do profissional de educação física: desafios e perspectivas

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    BACKGROUND: Physical Education is a training area that addresses bodily activities in their pedagogical, cultural, social and biological dimensions. The complexity of these interactions demands specific competences in the professional training of Physical Education.OBJECTIVE: This study aimed to summarize the scientific production and identify the scenario of use of active teaching-learning methodologies in the training of Physical Education professionals; as well as verifying the operationalization strategies of these methodologies.METHODS: This is an integrative literature review, carried out in the databases: Virtual Health Library (VHL), Scientific Electronic Library Online (Scielo), Academic Google (GA) and Capes Journal Portal published until 2021. Fourteen studies were analyzed (two literature reviews and 12 interventional studies). RESULTS: It was observed that students and teachers perceive active methodologies as positive, and there are several strategies used that take into account the theoretical subsidies of the active methodology. The application of these methodologies is timid regarding the benefits they bring in training of professionals.CONCLUSION: It is necessary to go beyond the paradigm of the traditional methodology with teacher training and an integrated curriculum for the implementation of active teaching-learning methodologies to take place.INTRODU√á√ÉO: A Educa√ß√£o F√≠sica √© uma √°rea de forma√ß√£o que aborda as atividades corporais em suas dimens√Ķes pedag√≥gicas, culturais, sociais e biol√≥gicas. A complexidade destas intera√ß√Ķes demanda compet√™ncias espec√≠ficas na forma√ß√£o profissional. Neste sentido, as metodologias ativas promovem uma aproxima√ß√£o cr√≠tica e reflexiva com a realidade que o espera na futura profiss√£o.OBJETIVO: Este estudo objetivou sintetizar a produ√ß√£o cient√≠fica e identificar o cen√°rio de uso das metodologias ativas de ensino-aprendizagem na forma√ß√£o do profissional de Educa√ß√£o F√≠sica; assim como verificar as estrat√©gias de operacionaliza√ß√£o dessas metodologias. M√ČTODOS: Trata-se de uma revis√£o integrativa da literatura, realizada nas bases de dados: Biblioteca Virtual da Sa√ļde (BVS), Scientific Electronic Library Online (Scielo), Google Acad√™mico (GA) e Portal de Peri√≥dicos da Capes publicadas at√© 2021. Foram analisados 14 estudos (duas revis√Ķes bibliogr√°ficas e 12 estudos interventivos).RESULTADOS: Foi observado que alunos e professores percebem as metodologias ativas como positivas, e diversas s√£o as estrat√©gias utilizadas que levam em conta os subs√≠dios te√≥ricos da metodologia ativa. No entanto, a aplica√ß√£o dessas metodologias se mostra t√≠midas frente aos benef√≠cios que trazem na forma√ß√£o desses profissionais.CONCLUS√ÉO: √Č preciso perpassar o paradigma da metodologia tradicional com a capacita√ß√£o docente e um curr√≠culo integrado para que a implanta√ß√£o das novas metodologias de ensino aconte√ßa

    Atendimento ao cliente pelos profissionais de educação física da área fitness durante um dos auges da pandemia da covid-19 no brasil

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    Em mar√ßo de 2020, a Organiza√ß√£o Mundial da Sa√ļde (OMS) informou sobre a exist√™ncia de uma pandemia da doen√ßa COVID-19, causadora de altera√ß√Ķes sist√™micas, principalmente respirat√≥rias.¬† Dentre as medidas de preven√ß√£o recomendadas pela OMS e governos respons√°veis, o distanciamento f√≠sico foi adotado, inclusive no Brasil. Neste contexto, as academias de gin√°stica e alguns tipos de pr√°ticas corporais da √°rea fitness sofreram limita√ß√Ķes, podendo impactar negativamente nos aspectos socioecon√īmico e de sa√ļde. Diante dessa situa√ß√£o, o presente estudo teve como objetivo analisar o perfil de atendimento dos profissionais de Educa√ß√£o F√≠sica da √°rea fitness durante o m√™s de fevereiro de 2020 e durante a pandemia da covid-19, mais precisamente em junho de 2020. Para tanto um question√°rio com perguntas sociodemogr√°ficas e relacionadas ao trabalho foi aplicado atrav√©s por meio da plataforma LimeSurvey, aos profissionais triados via Instagram e Facebook, que demonstraram interesse em participar do estudo. De um modo geral, observou-se uma redu√ß√£o dos profissionais que atendiam predominante tr√™s pessoas por sess√£o treino e aumento dos que atendiam predominante uma sess√£o de treino, redu√ß√£o dos tipos de prescri√ß√£o de treinamento, al√©m de uma redu√ß√£o mais relevante das pr√°ticas comumente realizadas em ambientes fechados e que dependiam de maiores recursos materiais frente aquelas que demandavam menos recursos, como o exerc√≠cio calist√™nico. Al√©m disso, foi observado um aumento do uso de tecnologias digitais. Conclui-se que ocorreram mudan√ßas quanto √† prescri√ß√£o e pr√°tica de exerc√≠cios f√≠sicos durante a pandemia, tornando as pr√°ticas mais individualizadas, com aumento da sua realiza√ß√£o no ambiente domiciliar e com uso de menos recursos materiais no per√≠odo da pandemia

    Metodologias ativas aplicadas à formação do profissional de educação física: desafios e perspectivas

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    INTRODU√á√ÉO: A Educa√ß√£o F√≠sica √© uma √°rea de forma√ß√£o que aborda as atividades corporais em suas dimens√Ķes pedag√≥gicas, culturais, sociais e biol√≥gicas. A complexidade destas intera√ß√Ķes demanda compet√™ncias espec√≠ficas na forma√ß√£o profissional. Neste sentido, as metodologias ativas promovem uma aproxima√ß√£o cr√≠tica e reflexiva com a realidade que o espera na futura profiss√£o. OBJETIVO: Este estudo objetivou sintetizar a produ√ß√£o cient√≠fica e identificar o cen√°rio de uso das metodologias ativas de ensino-aprendizagem na forma√ß√£o do profissional de Educa√ß√£o F√≠sica; assim como verificar as estrat√©gias de operacionaliza√ß√£o dessas metodologias. M√ČTODOS: Trata-se de uma revis√£o integrativa da literatura, realizada nas bases de dados: Biblioteca Virtual da Sa√ļde (BVS), Scientific Electronic Library Online (Scielo), Google Acad√™mico (GA) e Portal de Peri√≥dicos da Capes publicadas at√© 2021. Foram analisados 14 estudos (duas revis√Ķes bibliogr√°ficas e 12 estudos interventivos). RESULTADOS: Foi observado que alunos e professores percebem as metodologias ativas como positivas, e diversas s√£o as estrat√©gias utilizadas que levam em conta os subs√≠dios te√≥ricos da metodologia ativa. No entanto, a aplica√ß√£o dessas metodologias se mostra t√≠midas frente aos benef√≠cios que trazem na forma√ß√£o desses profissionais. CONCLUS√ÉO: √Č preciso perpassar o paradigma da metodologia tradicional com a capacita√ß√£o docente e um curr√≠culo integrado para que a implanta√ß√£o das novas metodologias de ensino aconte√ßa

    Analysis of muscle strength and body composition of women with Polycystic Ovary Syndrome

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    OBJETIVOS: Comparar os par√Ęmetros metab√≥licos, a composi√ß√£o corporal e a for√ßa muscular de mulheres com S√≠ndrome dos Ov√°rios Polic√≠sticos (SOP) em rela√ß√£o a mulheres com ciclos menstruais ovulat√≥rios. M√ČTODOS: Estudo caso-controle com 27 mulheres com SOP e 28 mulheres controles com ciclos ovulat√≥rios, com idade entre 18 e 37 anos, √≠ndice de massa corp√≥rea entre 18 e 39,9 kg/m¬≤, que n√£o praticassem atividade f√≠sica regular. N√≠veis s√©ricos de testosterona, androstenediona, prolactina, globulina carreadora dos horm√īnios sexuais (SHBG), insulina e glicemia foram avaliados. √ćndice de andr√≥geno livre (FAI) e resist√™ncia insulina (por HOMA) foram calculados. As volunt√°rias submetidas avalia√ß√£o de composi√ß√£o corporal por dobras cut√Ęneas e absorciometria de raio X de dupla energia (DEXA) e testes de for√ßa muscular m√°xima de 1-RM em tr√™s exerc√≠cios ap√≥s procedimento de familiariza√ß√£o e de for√ßa isom√©trica de preens√£o manual. RESULTADOS: Os n√≠veis de testosterona foram mais elevados no grupo SOP em rela√ß√£o ao CO (68,0¬Ī20,2 versus 58,2¬Ī12,8 ng/dL; p=0,02), assim como o FAI (282,5¬Ī223,8 versus 127,0¬Ī77,2; p=0,01), a insulina (8,4¬Ī7,0 versus 4,0¬Ī2,7 uIU/mL; p=0,01), e o HOMA (2,3¬Ī2,3 versus1,0¬Ī0,8; p=0,01). O SBHG foi inferior no grupo SOP comparado ao controle (52,5¬Ī43,3 versus 65,1¬Ī27,4 nmol/L; p=0,04). N√£o foram observadas diferen√ßas significativas na composi√ß√£o corporal com os m√©todos propostos entre os grupos. O grupo SOP apresentou maior for√ßa muscular no teste de 1-RM nos exerc√≠cios supino reto (31,2¬Ī4,75 versus 27,8¬Ī3,6 kg; p=0,04) e cadeira extensora (27,9¬Ī6,2 versus 23,4¬Ī4,2 kg; p=0,01), assim como nos testes de for√ßa isom√©trica de preens√£o manual (5079,6¬Ī1035,7 versus 4477,3¬Ī69,6 kgf/m¬≤; p=0,04). Ser portadora de SOP foi um preditor independente de aumento de for√ßa muscular nos exerc√≠cios supino reto (estimativa (E)=2,7) (p=0,04) e cadeira extensora (E=3,5) (p=0,04). Assim como o IMC no exerc√≠cio de for√ßa isom√©trica de preens√£o manual do membro dominante (E=72,2) (p<0,01), supino reto (E=0,2) (p=0,02) e rosca direta (E=0,3) (p<0,01). Nenhuma associa√ß√£o foi encontrada entre HOMA-IR e for√ßa muscular. CONCLUS√ēES: Mulheres com SOP apresentam maior for√ßa muscular, sem diferen√ßa na composi√ß√£o corporal. A RI n√£o esteve associada ao desempenho da for√ßa muscular. Possivelmente, a for√ßa muscular pode estar relacionada aos n√≠veis elevados de androg√™nios nessas mulheres

    Variabilidade da frequ√™ncia card√≠aca em atletas e n√£o atletas saud√°veis - diferen√ßas e altera√ß√Ķes provocadas pelo treinamento f√≠sico de endurance

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    Introdu√ß√£o e Objetivo: A an√°lise da variabilidade da frequ√™ncia card√≠aca (VFC) √© um importante m√©todo para a avalia√ß√£o da modula√ß√£o auton√īmica card√≠aca, e difere conforme as condi√ß√Ķes de sa√ļde, n√≠vel de condicionamento f√≠sico e condi√ß√Ķes de treinamento. Portanto, o objetivo deste estudo foi comparar a VFC entre atletas de endurance e n√£o atletas saud√°veis e entre atletas de diferentes modalidades de endurance, bem como identificar a influ√™ncia do treinamento de alto rendimento sobre a VFC. Materiais e M√©todos: Trata-se de uma revis√£o sistem√°tica da base de dados Pubmed de artigos originais publicados entre agosto de 2009 e dezembro de 2014 que avaliaram a VFC em atletas. Utilizou-se as seguintes combina√ß√Ķes de termos: ''autonomic cardiac'' and sport; ''autonomic cardiac'' and athlete; ''heart rate variability'' and sport e ''heart rate variability'' and athlete. Resultados: Foram lidos todos os resumos, sendo pr√©-selecionados 29 artigos para leitura na √≠ntegra, resultando em 11 que de fato se enquadravam no perfil do estudo. Desses, 10 realizaram a avalia√ß√£o no dom√≠nio do tempo, 8 no dom√≠nio da frequ√™ncia e sete em ambos. Conclus√£o: Atletas de algumas modalidades esportivas apresentam maior modula√ß√£o parassimp√°tica quando comparados aos n√£o atletas. Adicionalmente, a VFC pode alterar em diferentes condi√ß√Ķes, dependendo de vari√°veis como idade, fadiga, gordura corporal, intensidade e cargas de treinamento. De uma maneira geral, a an√°lise da VFC demonstra ser uma importante ferramenta para avalia√ß√£o da modula√ß√£o auton√īmica card√≠aca em atletas, antes, durante e ap√≥s o treinamento, na recupera√ß√£o e para a prescri√ß√£o do treinamento.¬†ABSTRACT¬†Heart rate variability in athletes and non-athletes healthy - differences and alterations caused by endurance physical trainingIntroduction and Objective: The analysis of heart rate variability (HRV) is an important method for the assessment of cardiac autonomic modulation, and differs according to the health, fitness level and training conditions. Therefore, the aim of this study was to compare the HRV between endurance athletes and healthy non-athletes and between athletes of different types of endurance and to identify the influence of high performance training on HRV. Material and Methods: This is a systematic review of Pubmed database of original articles published between August 2009 and December 2014 that assessed heart rate variability in athletes. We used the following combinations of terms: ''autonomic cardiac'' and sport; ''autonomic cardiac'' and athlete; ''heart rate variability'' and sport e ''heart rate variability'' and athlete. Results: All abstracts were read, pre-selected 29 articles being read in full, resulting in 11 that actually be considered under study of the profile. Ten of the evaluation performed in the time domain, eight on frequency domain and seven both. Conclusion: Athletes of some sports have higher parasympathetic modulation when compared to non-athletes. In addition, the HRV can change under different conditions, depending on variables such as age, fatigue, body fat, intensity and training loads. In general, HRV analysis proves to be an important tool for assessment of cardiac autonomic modulation in athletes before, during and after training, recovery and for training prescription

    The Polycystic Ovary Syndrome Present Higher Sympathetic Cardiac Autonomic Modulation that is not Altered by Strength Training

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    International Journal of Exercise Science 9(5): 554-566, 2016. Polycystic ovary syndrome (PCOS) may present important comorbidities, such as cardiovascular and metabolic diseases, which are often preceded by changes in cardiac autonomic modulation. Different types of physical exercises are frequently indicated for the prevention and treatment of PCOS. However, little is known about the effects of strength training on the metabolic, hormonal, and cardiac autonomic parameters. Therefore, our aim was to investigate the effects of strength training on the autonomic modulation of heart rate variability (HRV) and its relation to endocrine-metabolic parameters in women with PCOS. Fifty-three women were divided into two groups: CONTROL (n=26) and PCOS (n=27). The strength training lasted 4 months, which was divided into mesocycles of 4 weeks each. The training load started with 70% of one repetition maximum (1RM). Blood samples were collected before and after intervention for analysis of fasting insulin and glucose, HOMA-IR, testosterone, androstenedione and testosterone/androstenedione (T/A) ratio. Spectral analysis of HRV was performed to assess cardiac autonomic modulation indexes. The PCOS group presented higher insulin and testosterone levels, T/A ratio, along with increased sympathetic cardiac autonomic modulation before intervention. The training protocol used did not cause any change of endocrine-metabolic parameters in the CONTROL group. Interestingly, in the PCOS group, reduced testosterone levels and T/A ratio. Additionally, strength training did not have an effect on the spectral parameter values of HRV obtained in both groups. Strength training was not able to alter HRV autonomic modulation in women with PCOS, however may reduce testosterone levels and T/A ratio

    Short-Term Aerobic Exercise Did Not Change Telomere Length While It Reduced Testosterone Levels and Obesity Indexes in PCOS: A Randomized Controlled Clinical Trial Study

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    Metabolic and hormonal outcomes of polycystic ovary syndrome (PCOS) have implications on telomere biology and physical activity may prevent telomere erosion. We sought to observe the effects of continuous (CAT) and intermittent (IAT) aerobic training on telomere length, inflammatory biomarkers, and its correlation with metabolic, hormonal, and anthropometric parameters of PCOS. This randomized controlled clinical trial study included 87 PCOS randomly stratified according to body mass index (BMI) in CAT (n = 28), IAT (n = 29) and non-training control group (CG, n = 30). The exercises were carried out on a treadmill, three times per week for 16 weeks. The participants‚Äô anthropometric characteristics and biochemical and hormonal concentrations were measured before and after aerobic training or observation period, as the telomere length that was evaluated using quantitative real-time PCR. Four months of aerobic exercises (CAT or IAT) did not alter telomere length and inflammatory biomarkers in PCOS women. Obesity index as BMI and waist circumference (WC), and inflammatory biomarkers negatively affect telomeres. The hyper-andro-genism measured by testosterone levels was reduced after both exercises (CAT, p ‚ȧ 0.001; IAT, p = 0.019). In particular, the CAT reduced WC (p = 0.045), hip circumference (p = 0.032), serum cholesterol (p ‚ȧ 0.001), and low-density lipoprotein (p = 0.030). Whereas, the IAT decreased WC (p = 0.014), waist-to-hip ratio (p = 0.012), free androgen index (FAI) (p = 0.037). WC (p = 0.049) and body fat (p = 0.015) increased in the non-training group while total cholesterol was reduced (p = 0.010). Booth exercises reduced obesity indices and hyperandrogenism on PCOS women without changes in telomere length or inflammatory biomarkers

    Resistance and aerobic training increases genome-wide DNA methylation in women with polycystic ovary syndrome

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    Physical activity is a first-line treatment for polycystic ovary syndrome (PCOS). Resistance or aerobic exercise improves metabolic complications, reproductive outcomes, and quality of life in PCOS. DNA methylation reprogramming during exercise may be the major modifier behind these changes. We sought to evaluate genome-wide DNA methylation changes after supervised resistance and aerobic exercise in women with PCOS. Exercises were performed in 56 women with PCOS (resistance, n‚ÄČ=‚ÄČ30; aerobic, n‚ÄČ=‚ÄČ26), for 16‚ÄČweeks (wks), three times per week, in 50-minute to one-hour sessions. Anthropometric indices and hormonal and metabolic parameters were measured before and after training. Genome-wide leukocyte DNA methylation was analysed by Infinium Human MethylationEPIC 850K BeadChip microarrays (Illumina). Both resistance and aerobic exercise improved anthropometric indices, metabolic dysfunction, and hyperandrogenism in PCOS after the training programme, but no differences were observed between the two exercises. Resistance and aerobic exercise increased genome-wide DNA methylation, although resistance changed every category in the CpG island context (islands, shores, shelve, and open sea), whereas aerobic exercise altered CpG shores and the open sea. Using a stringent FDR (>40), 6 significantly differentially methylated regions (DMRs) were observed in the resistance exercise cohort and 14 DRMs in the aerobic cohort, all of which were hypermethylated. The increase in genome-wide DNA methylation may be related to the metabolic and hormonal changes observed in PCOS after resistance and aerobic exercise. Since the mammalian genome is hypermethylated globally to prevent genomic instability and ageing, resistance and aerobic exercise may promote health and longevity through environmentally induced epigenetic changes.</p
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