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首页> 外文期刊>Journal of Sports Science and Medicine >Effect of Acute Dietary Nitrate Supplementation on the Post-Exercise Ambulatory Blood Pressure in Obese Males: A Randomized, Controlled, Crossover Trial
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Effect of Acute Dietary Nitrate Supplementation on the Post-Exercise Ambulatory Blood Pressure in Obese Males: A Randomized, Controlled, Crossover Trial

机译：急性膳食硝酸盐补充对肥胖男性锻炼后血压的影响：随机，控制，交叉试验

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This study aimed to verify the effect of beetroot juice on post-exercise ambulatory blood pressure (BP) in obese individuals. Fourteen non-hypertensive obese males were randomly assigned to three experimental sessions: 1) Beetroot juice with exercise (BJE, 200ml with ≈ 800mg nitrate and 40 minutes of moderate-intensity aerobic exercise at an intensity of 50% of the heart rate reserve), 2) fruit soda with exercise (FSE, 200ml of a low-nitrate drink and the same exercise session) and 3) control (CON, 200ml of water, an insignificant nitrate drink without exercise). The concentration of total nitrites and nitrates in plasma (NOx) after the drinks and the 24-hour ambulatory BP were evaluated. A two-way (condition vs. time) ANOVA for repeated measures, with a Bonferroni post hoc was used to analyze variables. The plasma NOx concentration increased significantly after ingestion of beetroot juice (from 9.9 ± 8.4 μM to 47.0 ± 16.9 μM, p & 0.001) and remained elevated until 1 hour post-intervention (54.7 ± 10.1 μM, p & 0.001), while it did not change in FSE and CON groups. The BJE session decreased ambulatory systolic BP in 5.3 mmHg (IC95%, -10.1 to -0.6, p = 0.025) in the period of 1-6 h after the BJE session compared to the CON session and reduction of 3.8 mmHg (IC95%, -7.5 to -0.007, p = 0.05) compared to the FSE session. No significant changes were observed for ambulatory diastolic BP (p & 0.05). BJE enhanced the reduction of systolic ambulatory BP up to 6 hours following a moderate-intensity aerobic exercise in obese individuals with an elevated cardiovascular risk profile.
机译：本研究旨在验证甜菜根汁对肥胖个体锻炼后血压（BP）的影响。十四个非高血压肥胖的男性随机分配到三个实验会话：1）甜菜根汁与运动（BJE，200ml，≈800mg硝酸盐和40分钟的中等强度有氧运动，强度为90％的心率储备）， 2）水果苏打水与运动（FSE，200毫升低硝酸盐饮料和相同的运动会）和3）对照（符合200毫升的水，无足轻重的硝酸盐饮料而没有运动）。评价饮料后血浆（NOx）中总亚硝酸盐和硝酸盐的浓度和24小时动态BP。用于重复措施的双向（条件与时间）ANOVA，用Bonferroni邮政Hoc分析变量。摄入甜菜根汁（从9.9±8.4μm至47.0±16.9μm，p <0.001）后，血浆NOx浓度显着增加，并保持升高至干预后1小时（54.7±10.1μm，p <0.001），同时它没有改变FSE和CON组。与CON会话相比，BJE会议在5.3mmHg（IC95％，-10.1至-0.6，p = 0.025）中，在5-6小时内减少了5.3mmHg（IC95％，-10.1至-0.6，p = 0.025），减少了3.8 mmHg（IC95％，与FSE会话相比，-7.5至-0.007，p = 0.05）。对于动态舒张性BP（P＆GT; 0.05）没有观察到显着变化。 BJE在肥胖个体中的中等强度有氧运动后，增强了6小时的收缩式动态BP的减少，其心血管风险升高。

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