The Effect of a Dietary Nitrate Supplementation in the Form of a Single Shot of Beetroot Juice on Static and Dynamic Apnea Performance
Barlow MJ, Elia A, Shannon OM, Zacharogianni A, Lodin-Sundstrom A
International journal of sport nutrition and exercise metabolism · 6 citas
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
- Consumo medido con
- No se indica
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2017-11-01 · Int J Sport Nutr Exerc Metab · vol. 28 · número 5 · págs. 497–501
- Editorial
- Human Kinetics
- Citado
- 8 citas · más que el 82% de estudios similares · 1.4× el promedio de su campo
- Referencias
- 44 trabajos
- Acceso
- De pago
- Áreas de investigación
- Cardiovascular and exercise physiology · Sports Performance and Training · Exercise and Physiological Responses
- Palabras clave
- dietary nitrate, beetroot juice, apnea, breath-holding, freediving, peripheral oxygen saturation, heart rate, pulmonary oxygen uptake, nitrate supplementation
- MeSH
- humans, beta vulgaris, nitrates, oximetry, double-blind method, dietary supplements, adult, middle aged, female, male, athletic performance, breath holding, sports nutritional physiological phenomena, fruit and vegetable juices
5 autores
- Matthew Barlow🇬🇧Leeds Beckett University
- Antonis Elia🇬🇧Leeds Beckett University
- Oliver Michael Shannon🇬🇧Leeds Beckett University
- Angeliki Zacharogianni🇬🇧Leeds Beckett University
- Angelica Lodin‐Sundström🇸🇪Mid Sweden University
Resumen
El texto original del estudio, en el idioma en que se publicó.
Introduction
The purpose of the present study was to assess the effects of acute nitrate ([Formula: see text])-rich beetroot juice (BRJ) supplementation on peripheral oxygen saturation (SpO2), heart rate (HR), and pulmonary gas exchange during submaximal static and dynamic apnea.
Methods
Nine (six males and three females) trained apneists (age: 39.6 ± 8.2 years, stature: 170.4 ± 11.5 cm, and body mass: 72.0 ± 11.5 kg) performed three submaximal static apneas at 60%, 70%, and 80% of the participant's current reported personal best time, followed by three submaximal (∼75% or personal best distance) dynamic apneas following the consumption of either a 70-ml concentrated BRJ (7.7 mmol [Formula: see text]) or a [Formula: see text]-depleted placebo (PLA; 0.1 mmol [Formula: see text]) in double-blind randomized manner. HR and SpO2 were measured via fingertip pulse oximetry at the nadir, and online gas analysis was used to assess pulmonary oxygen uptake ([Formula: see text]) during recovery following breath-holds.
Results
There were no differences (p 2 (PLA = 83% ± 14% and BRJ = 84% ±9%), or [Formula: see text] (PLA = 1.00 ± 0.22 L/min and BRJ = 0.97 ± 0.27 L/min).
Conclusion
The consumption of 7.7 mmol of beetroot juice supplementation prior to a series of submaximal static and dynamic apneas did not induce a significant change in SpO2, HR, and [Formula: see text] when compared with placebo. Therefore, there is no apparent physiological response that may benefit free divers as a result of the supplementation.
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