3,729 research outputs found

    A hipertrofia muscular e o consumo de álcool

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    Muscle hypertrophy provides the improvement of physical aptitudes, health conditions, physical conditioning and longevity. Furthermore, alcohol consumption is a common practice in society, becoming an obstacle when individuals seek weight loss, improvement of physical or aesthetic condition. This is because alcohol consumption impairs muscle gain, as its intake breaks the balance, thus affecting homeostasis. In this context, the work aimed at alcohol consumption and vulnerabilities to hypertrophy in non-athletes. The study is a theoretical reflection of a qualitative approach, on the effects of the consumption of alcoholic beverages in the process of hypertrophy of the skeletal muscles of the human body. However, changes in habits favor the increase of lean mass, and many people who have their goals restrained by the use of alcohol seek in anabolic steroids the income that was lost in diet, metabolism or in the indisposition to practice caused by excess alcohol. Finally, moderate alcohol consumption is not an impediment to hypertrophy in non-athletes, and its use is highly prevalent in physically active individuals.A hipertrofia muscular proporciona a melhoria das aptidões físicas, condições de saúde, do condicionamento físico e na longevidade. Outrossim, o consumo de álcool é uma prática comum na sociedade, tornando-se empecilho quando os indivíduos buscam: perda de peso, melhoria da condição física ou estética. Isso porque, o consumo de álcool prejudica no ganho de músculo, visto que sua ingestão quebra o equilíbrio, afetando assim a homeostase. Nesse contexto, o trabalho objetivou sobre o consumo de álcool e as vulnerabilidades frente a hipertrofia em pessoas não atletas. O estudo se trata de uma reflexão teórica de abordagem qualitativa, sobre os efeitos do consumo de bebidas alcóolicas no processo de hipertrofia da musculatura esquelética do corpo humano. Todavia, mudanças de hábitos favorecem o aumento de massa magra, e muitas das pessoas que tem seus objetivos refreados pelo uso de álcool buscam em anabolizantes o rendimento que se perdeu na dieta, no metabolismo ou na indisposição para a prática causada pelo excesso de álcool. Por fim, o consumo moderado de álcool não é um fator impeditivo da hipertrofia em pessoas não atletas, e seu uso é evidenciado em grande prevalência em indivíduos fisicamente ativos

    A hipertrofia muscular e o consumo de álcool

    Get PDF
    Muscle hypertrophy provides the improvement of physical aptitudes, health conditions, physical conditioning and longevity. Furthermore, alcohol consumption is a common practice in society, becoming an obstacle when individuals seek weight loss, improvement of physical or aesthetic condition. This is because alcohol consumption impairs muscle gain, as its intake breaks the balance, thus affecting homeostasis. In this context, the work aimed at alcohol consumption and vulnerabilities to hypertrophy in non-athletes. The study is a theoretical reflection of a qualitative approach, on the effects of the consumption of alcoholic beverages in the process of hypertrophy of the skeletal muscles of the human body. However, changes in habits favor the increase of lean mass, and many people who have their goals restrained by the use of alcohol seek in anabolic steroids the income that was lost in diet, metabolism or in the indisposition to practice caused by excess alcohol. Finally, moderate alcohol consumption is not an impediment to hypertrophy in non-athletes, and its use is highly prevalent in physically active individuals.A hipertrofia muscular proporciona a melhoria das aptidões físicas, condições de saúde, do condicionamento físico e na longevidade. Outrossim, o consumo de álcool é uma prática comum na sociedade, tornando-se empecilho quando os indivíduos buscam: perda de peso, melhoria da condição física ou estética. Isso porque, o consumo de álcool prejudica no ganho de músculo, visto que sua ingestão quebra o equilíbrio, afetando assim a homeostase. Nesse contexto, o trabalho objetivou sobre o consumo de álcool e as vulnerabilidades frente a hipertrofia em pessoas não atletas. O estudo se trata de uma reflexão teórica de abordagem qualitativa, sobre os efeitos do consumo de bebidas alcóolicas no processo de hipertrofia da musculatura esquelética do corpo humano. Todavia, mudanças de hábitos favorecem o aumento de massa magra, e muitas das pessoas que tem seus objetivos refreados pelo uso de álcool buscam em anabolizantes o rendimento que se perdeu na dieta, no metabolismo ou na indisposição para a prática causada pelo excesso de álcool. Por fim, o consumo moderado de álcool não é um fator impeditivo da hipertrofia em pessoas não atletas, e seu uso é evidenciado em grande prevalência em indivíduos fisicamente ativos

    A influência dos fatores de risco para doenças cardiovasculares sobre a modulação autonômica cardíaca

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    Introduction: Autonomic nervous system changes is an independent risk factor for cardiocirculatory events, which can be studied by analysis of heart rate variability (HRV). Objective: To investigate the influence of risk factors for cardiovascular disease and medications on cardiac autonomic modulation. Methods: A sample of 23 adults with at least one cardiovascular risk factor, aged 50 and 70 years. Case histories and anthropometric evaluations were conducted. In the sitting condition of rest, heart rate (HR) and RR intervals were analyzed in the time domain (HR and RMSSD), frequency (LF, HF and LF/HF), and the Poincaré plot (SD1, SD2 and SD1/SD2 ). Results: There was a correlation between the presence of a sedentary lifestyle and changes in normal levels of LF (nu) and LF/HF (R = 0.479 and R = 0.439), as well the number of risk factors and the FC (R = 0.512). Testing the influence of medications using on changes in HR and HRV was found correlation of the Angiotensin II converting enzyme inhibitors with LF (nu) and LF/HF (R = -0.505 and R = -0.550). Conclusion: A sedentary lifestyle is associated with hyperactivation of the sympathetic modulation, and a greater number of risk factors for cardiovascular disease is associated with elevated resting HR, characterizing increased stress on the cardiovascular system. But the Angiotensin II converting enzyme inhibitors is related to reductions in sympathetic modulation and sympathetic-vagal balance, which is a favorable indicator for morbidity’s control. Introdução: Alterações do sistema nervoso autônomo são fator de risco independente para eventos cardiocirculatórios, os quais podem ser estudados pela análise da variabilidade da frequência cardíaca (VFC). Objetivo: Investigar a influência dos fatores de risco para doenças cardiovasculares e dos fármacos vigentes sobre a modulação autonômica cardíaca de repouso. Métodos: Amostra composta por 23 adultos com pelo menos um fator de risco cardiovascular, com idade entre 50 e 70 anos. Foram realizadas anamneses e avaliações antropométricas. Na condição de repouso sentado, a frequência cardíaca (FC) e os intervalos R-R foram analisados nos domínios do tempo (FC e RMSSD), da frequência (LF, HF e LF/HF) e pelo plot de Poincaré (SD1, SD2 e SD1/SD2). Resultados: Houve correlação entre presença do sedentarismo e alterações na normalidade dos índices LF(nu) e LF/HF (R= 0,479 e R= 0,439), bem como entre a quantidade de fatores de risco e a FC (R= 0,512). Testando a influência do uso dos medicamentos vigentes com alterações na FC e VFC, foi encontrada correlação do inibidor da enzima conversora de angiotensina com LF(nu) e LF/HF (R= ?0,505 e R= ?0,550). Conclusão: O sedentarismo está associado à hiperativação da modulação simpática, e um maior número de fatores de risco para doenças cardiovasculares está associado à elevação da FC de repouso, caracterizando maior estresse sobre o sistema cardiovascular. Já o uso do inibidor da enzima conversora de angiotensina II está relacionado às reduções da modulação simpática e ao balanço simpato-vagal, o que é um indicativo favorável para o controle da morbidade.

    Moderate volume of sprint bouts does not induce muscle damage in well-trained athletes

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    Introduction: Understanding the recovery in response to different sprint protocols is important for optimizing neuromuscular gains and organizing training sessions in sports. The current study aimed to investigate acute neuromuscular changes following a moderate volume of sprint protocols with and without change-of-direction. Methods: 26 well-trained male collegiate athletes from different sports were randomly allocated into straight-line group (SLG) or change-of-direction group (CODG). The protocols were 1 15 repetitions of 20-meter sprints in line (SLG) or with two changes in each repetition (CODG). Knee extension maximal and explosive strength, jump performance, serum creatine kinase, and quadriceps and hamstrings echo intensity were collected pre-, post- 0, 24, 48, and 72 h post-exercise. Results: There were no significant changes in any of the variables at any time point after the exercise protocols in comparison with pre-exercise values (p > 0.05). Conclusions: The present study suggests that sprint training with moderate volume with or without change of direction does not induce neuromuscular or physiological changes during 72 h post-exercise. This information is especially important for sports staff in order to optimize training prescription and frequency

    Effects of Hibiscus sabdariffa supplementation on metabolism and bladder in obese rats

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    ABSTRACT Purpose: Hibiscus sabdariffa (HS) extract has several health benefits and anti-obesogenic effects. The aim of the present study was to assess whether the medicinal properties attributable to HS would prevent or mitigate bladder changes induced by obesity in an experimental model. Methods: Forty-eight male Wistar rats were submitted to one of four different dietary interventions (12 animals each): G1, standard diet and water (controls); G2, standard diet and HS tea; G3, a palatable high-fat diet and water; and G4, high-fat diet diet and HS tea. The animals were monitored for body weight, feed, and water and tea intake, according to the allocated group. After 16 weeks, the animals were euthanized, and the levels of creatinine, inflammatory cytokines, testosterone, cholesterol, triglycerides, and electrolytes were evaluated. In addition, histopathological analysis of the animals’ bladder was performed. Results: Groups receiving HS (G2 and G4) showed decreased levels of the pro-inflammatory cytokine interleukin-1α. HS tea was able to reduce low-density lipoprotein and triglyceride levels in the G2 group compared to other groups. Only in the G3 there was a significant increase in the body weight when it was compared the 12th and 16th weeks. Leptin was shown to be elevated in the groups that received a high-fat diet. There was a significant decrease in the muscle fibers thickness and in the total collagen count in G4 bladder when compared with G1 and G3. Conclusions: HS has an anti-inflammatory role, can reverse hyperlipidemia in rats, and reduced deleterious effects of obesity on these animals’ bladder

    Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

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    This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good

    Severe early onset preeclampsia: short and long term clinical, psychosocial and biochemical aspects

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    Preeclampsia is a pregnancy specific disorder commonly defined as de novo hypertension and proteinuria after 20 weeks gestational age. It occurs in approximately 3-5% of pregnancies and it is still a major cause of both foetal and maternal morbidity and mortality worldwide1. As extensive research has not yet elucidated the aetiology of preeclampsia, there are no rational preventive or therapeutic interventions available. The only rational treatment is delivery, which benefits the mother but is not in the interest of the foetus, if remote from term. Early onset preeclampsia (<32 weeks’ gestational age) occurs in less than 1% of pregnancies. It is, however often associated with maternal morbidity as the risk of progression to severe maternal disease is inversely related with gestational age at onset2. Resulting prematurity is therefore the main cause of neonatal mortality and morbidity in patients with severe preeclampsia3. Although the discussion is ongoing, perinatal survival is suggested to be increased in patients with preterm preeclampsia by expectant, non-interventional management. This temporising treatment option to lengthen pregnancy includes the use of antihypertensive medication to control hypertension, magnesium sulphate to prevent eclampsia and corticosteroids to enhance foetal lung maturity4. With optimal maternal haemodynamic status and reassuring foetal condition this results on average in an extension of 2 weeks. Prolongation of these pregnancies is a great challenge for clinicians to balance between potential maternal risks on one the eve hand and possible foetal benefits on the other. Clinical controversies regarding prolongation of preterm preeclamptic pregnancies still exist – also taking into account that preeclampsia is the leading cause of maternal mortality in the Netherlands5 - a debate which is even more pronounced in very preterm pregnancies with questionable foetal viability6-9. Do maternal risks of prolongation of these very early pregnancies outweigh the chances of neonatal survival? Counselling of women with very early onset preeclampsia not only comprises of knowledge of the outcome of those particular pregnancies, but also knowledge of outcomes of future pregnancies of these women is of major clinical importance. This thesis opens with a review of the literature on identifiable risk factors of preeclampsia
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