Effects of concurrent training on morphological and functional parameters and blood pressure in hypertensive women / Efeitos do treinamento concorrente sobre parâmetros morfofuncionais e pressão arterial de mulheres hipertensas

Aerobic and resistance exercise have been prescript to prevention and non pharmacological treatment of hypertension. However, there is a lack of studies investigating the effects of concurrent training in hypertensive women. Thus, the aim of this study was to investigate the effects of concurrent training program on rest blood pressure, biochemical variables (blood glucose and total cholesterol), anthropometric (body mass index and waist circumference) and functional fitness in hypertensive women. Eighteen hypertensive postmenopausal and untrained women (59±12 years old) started in the intervention, but only ten subjects finished. The voluntaries were enrolled in concurrent training, 60 min/day, 3 times a week, during 6 months. Systolic and diastolic blood pressure, blood glucose, total cholesterol, body mass index, waist circumference and functional fitness (AAPHERD) were measured pre and post experimental period. Data were analyzed using the Student's t test with significance level set at 5% (P≤0.05) and Cohen's Effect Size (ES). The results showed significant improvement in systolic and diastolic blood pressure at rest. The other variables did not show significantly changes, but the ES was medium and large for several variables (body mass index, blood glucose, total cholesterol, agility, coordination, aerobic fitness, strength endurance and general functional fitness index). In conclusion, this study confirms that 6 month of concurrent training program improved systolic and diastolic blood pressure in hypertensive women. In addition, the protocol suggests an improvement in anthropometric, biochemical and functional variables related to health...(AU)

O treinamento aeróbio e resistido têm sido prescritos para prevenção e tratamento não farmacológico da hipertensão arterial. No entanto, há escassez de trabalhos investigando os efeitos do treinamento concorrente em mulheres hipertensas. Assim, o objetivo desse trabalho foi investigar os efeitos de um programa de treinamento concorrente sobre pressão arterial de repouso, variáveis bioquímicas (glicose sanguínea e colesterol total), antropométricas (índice de massa corporal e perímetro de cintura) e aptidão funcional em mulheres hipertensas. Dezoito mulheres menopausadas, hipertensas e destreinadas iniciaram o programa, mas somente 10 terminaram. As voluntárias foram submetidas a programa de treinamento concorrente, com frequência de 3 vezes por semana (60 minutos/sessão) e duração de 6 meses. Pressão arterial sistólica e diastólica de repouso, glicemia de jejum, colesterol total, índice de massa corporal, perímetro de cintura e aptidão funcional (AAPHERD) foram mensurados nos períodos pré e pós intervenção. Após confirmação da normalidade, os dados foram analisados usando o test t para amostras em pares, adotando nível de significância de 5% (P≤0,05), além do cálculo do tamanho do efeito de Cohen (ES). Os resultados permitiram observar melhora significativa na pressão sistólica e diastólica de repouso. As outras variáveis não se alteraram significativamente, mas o ES foi médio a grande em diversas variáveis analisadas (índice de massa corporal, glicemia, colesterol total, agilidade, coordenação, aptidão aeróbia, resistência de força e índice geral de aptidão funcional). Em conclusão, esse estudo confirma que um programa de treinamento concorrente de 6 meses diminui os níveis de pressão arterial sistólica e diastólica de repouso em mulheres hipertensas. Além disso, o protocolo sugere melhora em variáveis antropométricas, bioquímicas e funcionais relacionadas à saúde...(AU)

Effects of manual resistance training and free weight resistance training on postexercise blood pressure in hypertensive men: a pilot study.

BACKGROUND: Manual resistance training (MRT) is a low cost and practically applicable alternative form of resistance training that is ideal for weight rooms with limited equipment. The aim of this study was to compare the acute and subacute hemodynamic responses between MRT and free weight resistance training (FWRT) in normotensive (NT) and hypertensive (HT) men. METHODS: Twenty-six untrained men performed a single bout of MRT and FWRT with a minimum 72-hour rest in between. Systolic blood pressure (SBP), diastolic blood pressure (DBP), mean blood pressure (MBP) were measured, and double product (DP) was calculated. Variables were assessed at different time points: SBP, DBP and MBP (pre- and 15, 30, 45 and 60 minutes postexercise); DP (half-time and postintervention). RESULTS: The blood pressure values (BP) were greater in HT men in all analyses and interventions. BP responses were similar between MRT and FWRT in both groups of men. In HT men, there was postexercise hypotension (PEH) after 15, 30 and 60 minutes in MBP measured for both interventions. The DP was greater for the MRT intervention, but within the cardiovascular safety limits. CONCLUSIONS: MRT induces PEH in similar levels to FWRT in HT men. Therefore, MRT is a viable and safe alternative for application of FWRT in NT and HT men, reducing the need for expensive equipment.

Can energy drinks reduce the depressor effect of ethanol? An experimental study in mice.

Although the popularization of the combined use of alcoholic beverages and energy drinks (ED) containing caffeine, taurine and other substances has increased, there are no controlled experimental studies on the effects of ED alone or combined with ethanol. This work aimed at evaluating the effects of different doses of ED combined or not with ethanol, on the locomotor activity of Swiss mice. The administration of 3.57, 10.71 or 17.86 ml/kg of ED alone increased the locomotor activity of the animals in relation to a control group. Low doses of ethanol (0.5, 1.0 and 1.5 g/kg) alone or in combination with 10.71 ml/kg of ED did not affect their locomotor activity. However, the reduction of activity observed after 2.5 g/kg of ethanol was antagonized by 10.71 ml/kg of ED. Further studies on the mechanisms of this interaction are still needed.