Cited by 56Cardiovascular and exercise physiologyCardiovascular Health and Disease PreventionNitric Oxide and Endothelin Effects

Effects of chronic dietary nitrate supplementation on the hemodynamic response to dynamic exercise

Lee, Jae-Suk, Stebbins, Charles L., Jung, Eunji, Nho, Hosung, Kim, Jong-Kyung, Chang, Myoung-Jei, Choi, Hyun-Min·2015·American Journal of Physiology-Regulatory, Integrative and Comparative Physiology

Abstract

While acute treatment with beetroot juice (BRJ) containing nitrate (NO3 (-)) can lower systolic blood pressure (SBP), afterload, and myocardial O2 demand during submaximal exercise, effects of chronic supplementation with BRJ (containing a relatively low dose of NO3 (-), 400 mg) on cardiac output (CO), SBP, total peripheral resistance (TPR), and the work of the heart in response to dynamic exercise are not known. Thus, in 14 healthy males (22 ± 1 yr), we compared effects of 15 days of both BRJ and nitrate-depleted beetroot juice (NDBRJ) supplementation on plasma concentrations of NOx (NO3 (-)/NO2 (-)), SBP, diastolic blood pressure (DBP), mean arterial pressure (MAP), CO, TPR, and rate pressure product (RPP) at rest and during progressive cycling exercise. Endothelial function was also assessed via flow-mediated dilation (FMD). BRJ supplementation increased plasma NOx from 83.8 ± 13.8 to 167.6 ± 13.2 μM. Compared with NDBRJ, BRJ reduced SBP, DBP, MAP, and TPR at rest and during exercise (P < 0.05). In addition, RPP was decreased during exercise, while CO was increased, but only at rest and the 30% workload (P < 0.05). BRJ enhanced FMD-induced increases in brachial artery diameter (pre: 12.3 ± 1.6%; post: 17.8 ± 1.9%). We conclude that 1) chronic supplementation with BRJ lowers blood pressure and vascular resistance at rest and during exercise and attenuates RPP during exercise and 2) these effects may be due, in part, to enhanced endothelium-induced vasodilation in contractin…

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Crossref · 10.1152/ajpregu.00099.2015

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  • Oral supplementation with either nitrite or nitrate increases circulating nitrite levels and prevents and reverses endothelial dysfunction in a dose-dependent manner in mice and in healthy, hypertensive, and obese individuals, or in those with hypercholesterolemia and peripheral arterial disease.

    “Oral supplementation with either nitrite or nitrate increases circulating nitrite levels and prevents and reverses endothelial dysfunction in a dose-dependent manner both in mice[68,69] and in healthy[70,71,97,111,112], hypertensive[113], and obese individuals[114], or in those with hypercholesterolemia[115] and peripheral arterial disease[116].”

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Authors
Lee, J.-S., Stebbins, C. L., Jung, E., Nho, H., Kim, J.-K., Chang, M.-J., & Choi, H.-M.
Affiliations
  • Kyung Hee University (KR)
  • University of California, Davis (US)
Corresponding author
Choi, Hyun-Min
Venue
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
Published
2015-09
Volume
309
Issue
5
Pages
R459-R466
ISSN
  • 0363-6119 (ISSN-L)
  • 1522-1490
OpenAlex
W2221379959
Cited by
56
References
46
Citations by year
2025: 2 · 2024: 7 · 2023: 1 · 2022: 7 · 2021: 4 · 2020: 8 · 2019: 4 · 2018: 13 · 2017: 5 · 2016: 5
FWCI
15.08
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Regulatory, Integrative and Comparative Physiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Disease Prevention
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
dietary nitrate, beetroot juice, dynamic exercise, hemodynamics, blood pressure, systemic vascular resistance, cardiac output, rate-pressure product, endothelial function, flow-mediated dilation, nitric oxide, exercise fatigue, oxygen delivery
MeSH terms
Fruit and Vegetable Juices, Bicycling, Diet, Double-Blind Method, Endothelium, Vascular, Heart Rate, Hemodynamics, Humans, Male, Muscle Contraction, Nitrates, Time Factors, Vascular Resistance, Exercise, Muscle, Skeletal, Plant Roots, Cross-Over Studies, Muscle Fatigue, Dietary Supplements, Beta vulgaris, Young Adult, Arterial Pressure

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