Beetroot Juice Supplements Improve Exercise Outcomes in Heart Failure Patients

Beetroot Juice Supplements Improve Exercise Outcomes in Heart Failure Patients

by Julia Samuel on  February 23, 2018 at 12:19 PM Health Watch
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  • Dietary nitrate in the form of beetroot juice supplements improves the exercise capacity of patients with heart failure.
  • Acute dietary nitrate intake increased oxygen uptake and reduced fatigue in patients with heart failure.
  • During exercise, the heart finds it difficult to pump more blood and so the oxygen uptake is less in those with heart failure.
Beetroot juice supplements may help improve the ability to exercise and breathe more easily during a workout in patients with heart failure. Exercise capacity is a key factor linked to these patients' quality of life and even survival.
Beetroot Juice Supplements Improve Exercise Outcomes in Heart Failure Patients

Why Can't Heart Failure patients Exercise?

Patients with heart failure, atleast a half of them have a low ejection fraction or the ability of the heart to pump blood. Because of their condition, these patients find it difficult to breathe, have very low oxygen intake and use more energy while exercising than others.

Due to this extra strain, many forgo exercise from their daily routine. To find a solution that can help people exercise, scientists introduced dietary supplements of nitrate in the form of beetroot juice and tested the outcome.

The study examined the impact of dietary nitrate in the form of beetroot juice supplements on the exercise capacity of eight heart failure patients with reduced ejection fraction, a condition in which the heart muscle doesn't contract effectively and can't get enough oxygen-rich blood to the body.

Beetroot Juice to Exercise Better

The results showed that the beetroot supplement resulted in significant increases in exercise duration, peak power, and peak oxygen uptake while exercising.

Those improvements were not accompanied by any changes in the breathing responses of the patients, and there was no change in their exercise efficiency, a measure of how much external work a person gets for a certain input of energy.

"Abnormalities in aerobic exercise responses play a major role in the disability, loss of independence and reduced quality of life that accompany heart failure," said Andrew Coggan, an associate professor in the Department of Kinesiology in the School of Physical Education and Tourism Management at IUPUI and one of the researchers who conducted the study.

"Perhaps, more importantly, elevations in ventilatory demand and decreases in peak oxygen uptake are highly predictive of mortality in patients with heart failure."

A second important aspect of the study is there were no untoward side effects from the dietary nitrate, Coggan said: "In this case, lack of any significant changes is good news."

The data suggest that dietary supplementation may be a valuable addition to treatment for exercise intolerance among heart failure patients with reduced ejection fraction, Coggan said.

Multi-center trials are needed to confirm the proof-of-concept findings and to determine whether longer-term dietary nitrate treatment improves physical activity levels, quality of life and perhaps even survival in patients with heart failure with reduced ejection fraction.

  1. Coggan AR, Broadstreet SR, Mahmood K, Mikhalkova D, Madigan M, Bole I, Park S, Leibowitz JL, Kadkhodayan A, Thomas DP, Thies D, Peterson LR. 'Dietary Nitrate Increases VO2peak and Performance but Does Not Alter Ventilation or Efficiency in Patients With Heart Failure With Reduced Ejection Fraction.' Journal of Cardiac Failure (2017).

    Source: Medindia

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