RESUMO
Introducción. El accidente cerebrovascular (ACV) es una condición de salud que ha aumentado su prevalencia en los últimos años, la cual se encuentra intrínsecamente asociada a la presencia de enfermedades crónicas no transmisibles (ECNT), como lo son la diabetes mellitus, dislipidemia e hipertensión, las que, de no ser controladas tras la instauración del primer episodio, predisponen a la afección de un segundo evento de ACV. Es sabido que el ejercicio físico aeróbico juega un rol fundamental en el control de las ECNT, junto con otros factores, como lo son los cambios de hábitos y adherencia a los tratamientos farmacológicos. Objetivo. Analizar los efectos que tiene el ejercicio físico aeróbico en población secuelada de un ACV sobre las ECNT que predisponen a sufrir un segundo evento cerebrovascular. Método. Se realizó una exhaustiva búsqueda en las bases de datos EBSCO, Scielo, PubMed y PEdro, utilizando las palabras claves "stroke and modifiable risk factors and aerobic physical exercise"; obteniendo un total de 56438 artículos. Para la selección, se consideraron los siguientes criterios de inclusión: pacientes entre 45 y 65 años con secuelas de ACV de más de 6 meses, que analizaran el efecto del ejercicio físico sobre las ECNT tras un evento cerebrovascular. Resultados. Se seleccionaron tres artículos científicos tipo ensayo clínico aleatorizados controlados, los cuales analizan los efectos que produce el ejercicio físico aeróbico sobre las ECNT tras un ACV. Entre los resultados con mayor significancia estadística (P entre 0.01 y 0.05) se encuentra el aumento en el consumo peak de oxígeno y el aumento en el colesterol HDL. Conclusiones. Es indispensable sistematizar la información de los programas de rehabilitación neurológica, que permitan levantar datos de las intervenciones, y así poder potenciar el ejercicio físico aeróbico de forma segura para poder controlar las ECNT subyacentes y así prevenir futuros eventos cerebrovasculares.
Background. Cerebrovascular accident (CVA) is a health condition that has suspected its prevalence in recent years, which is intrinsically associated with the presence of chronic non-communicable diseases (CNCD), such as diabetes mellitus, dyslipidemia and hypertension, which, if not controlled after the establishment of the first episode, predispose to the condition of a second stroke event. It is known that aerobic physical exercise plays a fundamental role in the control of NCDs, along with other factors, such as changes in habits and adherence to pharmacological treatments. Objective. To analyze the effects of aerobic physical exercise in the population after a stroke on NCDs that predispose to a second cerebrovascular event. Method. An exhaustive search was carried out in the EBSCO, Scielo, PubMed and PEdro databases, using the keywords "stroke and modifiable risk factors and aerobic physical exercise"; obtaining a total of 56438 articles. For selection, consider the following inclusion criteria: patients between 45 and 65 years of age, stroke sequelae of more than 6 months, who will analyze the effect of physical exercise on NCDs after a cerebrovascular event. Results. Three controlled randomized clinical trial were selected, which analyze the effects produced by aerobic physical exercise on NCDs after a stroke. Among the results with the highest statistical significance (P between 0.01 and 0.05) is the increase in peak oxygen consumption and the increase in HDL cholesterol. Conclusion. It is essential to systematize the information on neurological rehabilitation programs, to collect data from the interventions, and thus be able to promote aerobic physical exercise safely to control the underlying NCDs and thus prevent future cerebrovascular events.
RESUMO
As estatinas são utilizadas no tratamento das dislipidemias, com grande tolerância; no entanto, vários efeitos colaterais podem surgir, destacando-se miopatia. A prática regular do exercício físico (EF) produz modificações favoráveis no perfil lipídico; entretanto, pode gerar lesões musculares. OBJETIVO: Avaliar o efeito da associação entre exercício físico e estatinas na função muscular, pela análise histológica, em modelo experimental animal com dislipidemia. MÉTODOS: Foram utilizados 80 ratos machos Wistar, distribuídos em oito grupos, incluindo animais submetidos à dieta hipercolesterolêmica (DH), sinvastatina com (G1) e sem (G2) EF; DH e fluvastatina, com (G3) e sem EF (G4); alimentados com ração comercial (RC) na presença (G5) e ausência de (G6) EF; DH submetidos (G7) ou não (G8) a EF. A DH foi administrada por 90 dias, as estatinas e prática de EF em esteira rolante por oito semanas. Os animais foram sacrificados, e o músculo sóleo retirado para análise histológica. Aplicaram-se os testes t de Student pareado e análise multivariada, com nível significante para p < 0,05. RESULTADOS: As principais alterações histológicas encontradas foram fibras de diferentes diâmetros, atróficas, em degeneração, splitting, edema, infiltrado inflamatório. Essas alterações foram observadas em 90% dos animais do grupo G1, 80% do G2, 70% do G3, 30% do G4, 40% do G5 e 30% do G7. Nos grupos G6 e G8 identificaram-se fibras musculares com morfologia preservada. CONCLUSÕES: Na avaliação histológica muscular, a associação entre fluvastatina, sinvastatina e exercício físico acarreta alterações morfológicas com predomínio no uso da sinvastatina, variando de grau leve a grave, no músculo sóleo de ratos, induzidos pelos inibidores da HMG-CoA redutase.
Statins are used in the treatment of dyslipidemias with great tolerance; however, several side effects can arise, mainly myopathies. Regular practice of physical exercises (PE) produces beneficial alteration in the lipid profile, but it can result in muscular lesions. OBJECTIVE: to evaluate the effect of the association between physical exercise and statins in the muscular function through histological analysis in an experimental animal model with dyslipidemia. METHODS: 80 male Wistar mice, distributed in 8 groups, namely: animals submitted to a hypercholesterolemic diet (HD), symvastatin with (G1) and without PE (G2) ; HD and fluvastatin with (G3) and without PE (G4); fed with commercial food (CR) in the presence (G5) and absence of PE (G6); HD submitted (G7) or not (G8) to PE were used. The HD was administered statins and PE practice on treadmill for 90 days for 8 weeks. The animals were sacrificed, and the soleus muscle was removed for histological analysis. Paired t-tests and multivariate analysis were applied with significance level of p<0.05. RESULTS: The most important histological alterations found were fibers with different diameters and atrophic, with degeneration, splitting, edema and inflammatory infiltrate. These alterations were observed in 90% of animals from G1; 80% from G2; 70% from G3; 30% from G4; 40% from G5 and 30% from G7. In the G6 and G8 groups muscular fibers with preserved morphology were identified. CONCLUSION: In the muscular histological evaluation, the association of fluvastatin, symvastatin and physical exercise results in morphological alterations with predominance with the use of simvastatin, varying from a light to a high level, in the soleus muscle of mice, induced by HMG-CoA reductase inhibitors.
RESUMO
Over the past few decades, there has been a surge of interest in the study of the effect of estrogen on the femaleorganism and the benefits of physical activities on different species of animals. The literature review provides areview of the existing literature on the morphological and/or physiological effects of the estrogen deprivationand/or the role of physical exercises on the arteries of different species of animals and humans. This reviewincludes last decade publications found in the PubMed database. One of the most relevant findings concerningestrogen deprivation was the arterial complacency reduction due to the reduction of elastin, whereas physicalexercises have been widely indicated for the treatment of several cardiovascular disorders and for the hardening of central arteries.