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Background: Cardiac rehabilitation with aerobic exercises is the first strategy as a non-pharmacological treatment in the postoperative period of individuals undergoing coronary artery bypass grafting (CABG) to improve functional capacity and vascular health. However, other exercise modalities remain uncertain as to the same benefits. Purpose: To evaluate the effect of different modalities of exercise, such as early cardiac rehabilitation, on subjects submitted to CABG on the percentage of flow-mediated dilatation (FMD) of the brachial artery and vascular resistance. Methods: A randomized clinical trial in which 15 patients (62.7±6.5 years) underwent CABG were randomly assigned to the following groups: isometric (IG, Handgrip Jamar Ò), ventilatory muscle training (VG, PowerBreathe Ò) and control (CG, conventional respiratory and motor physiotherapy). All patients received physical attendance twice a day (20 minutes/session) for a consecutive week after the CABG (hospital admission). Endothelial function was assessed through the technique FMD before and after (∼7 days) admission to CABG. The doppler ultrasound videos were analyzed by CardiovascularSuite Ò software to measure %FMD. Statistics: Generalized estimation equation, followed by Bonferroni post-hoc (p < 0.05). Results: Systolic, diastolic and mean arterial pressure (SBP/DBP/MAP, respectively) was of 133, 76, 95 mmHg. The groups presented %FMD before and after intervention of: IG 9,2 - 2,7% p = 0,71; VG 9,7 - 10,9% p = 0,82; CG 10,4 - 2,9% p = 0,15 and medium flow of: IG 245,5 - 207,6 mL/min p = 0,84; VG 83,7 - 58,7 mL/min p = 0,04; CG 94,6 - 101,2 mL/min p = 0,89. Conclusions: Different protocols for early cardiac rehabilitation modulate the vascular function of individuals undergoing CABG.

Introduction: Açaí-juçara is a fruit with a antioxidant content that can modify the vascular environment and attenuate the effects of obesity. Objective: To evaluate the effect of açaí-juçara on pulse pressure parameters in overweight or obese individuals. Methods: Randomized clinical trial with 23 individuals of both sexes, 37.7 ± 1.5 y, body weight 85.0 ± 4.8 kg, BMI 32.4 kg/m2. The volunteers were randomly assigned to: control group (C, n = 10) and açaí-juçara group (AJ, n = 13). Both received hypocaloric diets, representing 20% below the total energy value. AJ received, in the composition of the diet, 200 g of açaí-juçara for daily consumption. The intervention was 12 weeks and the follow-up was performed with weekly meetings. We analyzed parameters of peripheral blood pressure: systolic blood pressure (SBP) and diastolic blood pressure (DBP); parameters of central blood pressure: central pulse pressure (PPc), central systolic blood pressure (SBPc) and pulse wave velocity (PWV) with the oscillometric method (Mobil-O-Graph). Descriptive statistics (mean ± standard deviation) were performed and normality of the data was tested by Shapiro-Wilk. Possible differences were tested by ANOVA of repeated measures (Bonferroni post-hoc) with significance level of 5%. Results: After 12 weeks of intervention, body weight decreased in both groups (C: Δ3.2 kg; p = 0.050; AJ: Δ5.2 kg; p = 0.001). The peripheral SBP, PPc and PWV was lower in both groups (C: Δ3.8 mmHg, p = 0.040, AJ:Δ7.1mmHg, p = 0.031); (C: Δ5.5 unit, p = 0.044; AJ:Δ7.8 unit, p < 0.001); (p = 0.047) with greater effect in the AJ group (Δ0.4 unit; p = 0.006). Both groups reduced SBPc with more effect in the AJ group (Δ6.3 mmHg, p = 0.034). Conclusion: AJ showed benefits on peripheral SBP, PPc, PWV and SBPc when compared to the control group.