Effects of Nitrate Supplementation on Cardiovascular and Autonomic Reactivity in African-American Females

<table>Effects of beetroot juice treatment on heart rate variability. Bars represent mean ± standard error measurements of the average electrocardiogram RR (interbeat) interval, expressed in ms, performed at rest (baseline) at constant aerobic exercise workloads set to 40% and 80% of the predetermined peak oxygen consumption (<svg height="18.362499" id="M108" style="vertical-align:-5.56917pt" version="1.1" viewbox="0 0 53.762501 18.362499" width="53.762501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>). The subjects were 13 healthy young adult females administered a placebo control orange juice and an isocaloric beetroot juice treatment on separate days. Asterisk (*) indicates a significant treatment-related difference at <svg height="11.375" id="M109" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 58.712502 11.375" width="58.712502" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>.</table>

International Scholarly Research Notices

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Figure 3

Figure 3: Effects of Nitrate Supplementation on Cardiovascular and Autonomic Reactivity in African-American Females 