Nursing Department, The First Affiliated Hospital of Soochow University, Suzhou 215006, China.
Nursing Department, The Yancheng School of Clinical Medicine, Nanjing Medical University, Yancheng 224000, China.
Nutrients. 2022 Jul 30;14(15):3148. doi: 10.3390/nu14153148.
(1) Background: The management goal for patients with essential hypertension (HTN) is not only to lower blood pressure (BP), but also to control increased heart rate (HR). In a previous study, it was found that dietary fiber (DF) supplementation can effectively reduce BP in patients with HTN. The aim of this study was to determine whether a DF supplement can lower HR in patients with HTN. (2) Methods: Seventy patients who met the inclusion and exclusion criteria were randomly allocated into the control group ( = 34) and the intervention group ( = 36). The regular DASH dietary care was delivered to both groups of patients. In addition, one bag of oat bran (30 g/d, containing DF 8.9 g) was delivered to the intervention group. The 24 h ambulatory heart rate was measured at baseline and 3 months. (3) Results: At 3 months, the 24 h maximum heart rate (24h maxHR) in the intervention group was significantly lower than that in the control group. After the intervention, within-group comparisons in the intervention group revealed that there were significant reductions in the 24 h average heart rate (24h aveHR), 24h maxHR, average heart rate during day time (D-aveHR), minimum heart rate during day time (D-minHR), and maximum heart rate during day time (D-maxHR). Similar differences were not found in the control group. (4) Conclusions: Dietary fiber (oat bran) supplementation might be beneficial in lowering HR in patients with HTN.
（1）背景：原发性高血压（HTN）患者的治疗目标不仅在于降低血压（BP），还在于控制心率（HR）的升高。在之前的研究中发现，膳食纤维（DF）补充剂可以有效降低 HTN 患者的血压。本研究旨在确定 DF 补充剂是否可以降低 HTN 患者的 HR。（2）方法：将符合纳入和排除标准的 70 名患者随机分配到对照组（n=34）和干预组（n=36）。两组患者均给予常规 DASH 饮食护理。此外，干预组每天给予 1 袋燕麦麸（30 g/d，含 DF 8.9 g）。分别在基线和 3 个月时测量 24 h 动态心率。（3）结果：3 个月时，干预组的 24 h 最大心率（24h maxHR）明显低于对照组。干预后，干预组组内比较显示，24 h 平均心率（24h aveHR）、24h maxHR、白天平均心率（D-aveHR）、白天最小心率（D-minHR）和白天最大心率（D-maxHR）均显著降低。对照组则未发现类似差异。（4）结论：膳食纤维（燕麦麸）补充可能有益于降低 HTN 患者的 HR。
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