Comportamento da pressão arterial em homens pré-hipertensos participantes em um programa regular de natação

INTRODUÇÃO: A natação tem sido recomendada como tipo de atividade física para a prevenção, tratamento e controle da hipertensão arterial. OBJETIVO: Analisar os efeitos da prática regular de natação sobre a pressão arterial de adultos pré-hipertensos. MÉTODOS: A amostra foi composta por 36 homens pré-hipertensos divididos em dois grupos: Experimental - GE (n=24, 40,60±9,36 anos) e Controle - GC (n=12, 40,57±8,05 anos). O GE realizou um programa regular de natação, com três sessões semanais de 45 min, durante 12 semanas, enquanto o GC não alterou seus hábitos alimentares e permaneceu sem praticar atividade física no período. O procedimento estatístico utilizado para verificar as diferenças entre as médias antes e depois de 12 semanas do programa regular de natação foi o teste-t de Student. O estudo admitiu o nível de p < 0.05 para a significância estatística. RESULTADOS: O grupo GE apresentou diferenças estatisticamente significativas nas variáveis analisadas quando comparadas com o GC, tanto na pressão arterial sistólica, PAS (Δ = - 5,89 mmHg, p = 0,00), como na pressão arterial diastólica, PAD (Δ = - 5,15mmHg, p = 0,00). CONCLUSÃO: Os resultados mostram que um programa regular de natação provoca reduções significativas na pressão arterial em repouso em homens pré-hipertensos

Comparison Of Central Artery And The Elasticity In Swimmers, Runners, Sedentary

Although swimming is one of the most popular, most practiced, and most recommended forms of physical activity, little information is available regarding the influence of regular swimming on vascular disease risks. Using a cross-sectional study design, key measurements of vascular function were performed in middle-aged and older swimmers, runners, and sedentary controls. There were no group differences in age, height, dietary intake, and fasting plasma concentrations of glucose, total cholesterol, and low-density lipoprotein cholesterol. Runners and swimmers were not different in their weekly training volume. Brachial systolic blood pressure and pulse pressure were higher (p < 0.05) in swimmers than in sedentary controls and runners. Runners and swimmers had lower (p < 0.05) carotid systolic blood pressure and carotid pulse pressure than sedentary controls. Carotid arterial compliance was higher (p < 0.05) and p-stiffness index was lower (p < 0.05) in runners and swimmers than in sedentary controls. There were no significant group differences between runners and swimmers. Cardiovagal baroreflex sensitivity was greater (p < 0.05) in runners than in sedentary controls and swimmers and baroreflex sensitivity tended to be higher in swimmers than in sedentary controls (p = 0.07). Brachial artery flow-mediated dilation was significant greater (p < 0.05) in runners compared with sedentary controls and swimmers. In conclusion, our present findings are consistent with the notion that habitual swimming exercise may be an effective endurance exercise for preventing loss in central arterial compliance. (c) 2011 Elsevier Inc. All rights reserved. (Am J Cardiol 2011;107:783-787)Kinesiology and Health Educatio

Chronic Physiological Effects of Swim Training Interventions in Non-Elite Swimmers: A Systematic Review and Meta-Analysis

Background Swimming is a popular and potentially health-enhancing exercise, but has received less scientific attention compared with other exercise modes. Objective The objective of the study was to determine the chronic (long-term) effect of pool swim training on physiological outcomes in non-elite or non-competitive swimming participants