Beetroot-based gel supplementation improves handgrip strength and forearm muscle O<sub>2</sub> saturation but not exercise tolerance and blood volume in jiu-jitsu athletes

Oliveira, Gustavo Vieira de; Nascimento, Luiz Alberto Diniz do; Volino-Souza, Mônica; Mesquita, Jacilene; Álvares, Thiago Silveira

doi:10.1139/apnm-2017-0828

Cited by 23 publications

(30 citation statements)

References 47 publications

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“…Our results support those reported in healthy resistance-trained men [29], who showed low and non-significant improvements in the CMJ height (2.3%, p = 0.863) after consuming a low dose of BJ (6.4 mmoL of NO 3 − ) compared to placebo. Likewise, acute BJ supplementation seems to be not enough to produce increments in handgrip strength, in contrast to what was observed after chronic administration [41]. One previous study found significant but limited improvements in sprint times (-1.2% and -1.6% for 20-m and 10-m respectively) after 5 days of BJ (6.4 mmoL of NO 3 − ) supplementation [21].…”

Section: Discussionmentioning

confidence: 88%

“…Isometric handgrip strength was measured twice for the shooting (dominant) hand using a dynamometer (Takei 5101, Tokyo, Japan), with 30 s of rest [40]. Maximal voluntary contraction (MVC) was recorded in kg, adjusted to each subject's body weight and converted to newtons by multiplying the kg value by 9.8 [41]. Following 5 minutes of recovery, participants completed three CMJ, with their hands on the hips, separated by 45 s rest.…”

Section: Neuromuscular Battery Testsmentioning

confidence: 99%

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Does Acute Beetroot Juice Supplementation Improve Neuromuscular Performance and Match Activity in Young Basketball Players? A Randomized, Placebo-Controlled Study

et al. 2020

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Whereas beetroot juice (BJ) supplementation is shown to increase physical performance in endurance activities, its benefits in team sports has been barely studied. In this randomized placebo-controlled study, we investigated the effects of BJ acute supplementation in improving neuromuscular performance and physical match activity in basketball. Ten young male competitive basketball players aged 15–16 years received 140 mL of BJ or placebo (PLA) on two separated days in a balanced cross-over design. Testing sessions comprised a neuromuscular test battery consisting of a countermovement jump (CMJ), isometric handgrip strength, 10-m/20-m sprint and agility T-test, followed by a 40-minute simulated basketball match. Physical match activity (distances, speeds, accelerations, and decelerations) was monitored using an inertial tracking system (Wimu ProTM) Results revealed no significant effects of BJ on CMJ (p = 0.304, ES = 0.13), isometric handgrip strength (p = 0.777, ES = 0.06), 10-m (p = 0.820, ES = 0.10), and 20-m sprint (p = 0.540, ES = 0.13), agility T-test (p = 0.979, ES ≤ 0.01) and any physical match demands (p > 0.151, ES = 0.13–0.48). Acute moderate doses of BJ (12.8 mmol of NO3−) was not effective in improving neuromuscular performance (jump height, isometric handgrip strength, sprint, and agility) or physical match requirements in young trained basketball players the day of the competition.

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Section: Discussionmentioning

confidence: 88%

Section: Neuromuscular Battery Testsmentioning

confidence: 99%

Does Acute Beetroot Juice Supplementation Improve Neuromuscular Performance and Match Activity in Young Basketball Players? A Randomized, Placebo-Controlled Study

et al. 2020

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“…The rhythmic handgrip exercise consisted of one bout of rhythmic handgrip exercise at 30 % of MVC until exhaustion, followed by 2 min of recovery. The rhythmic handgrip exercise consisted of isotonic contractions of forearm muscles at a controlled rate (sixty contractions per min, 0•5 s contraction/0•5 s relaxation, determined using a metronome) and range of motions (10-cm excursion of the pulley wire with each contraction), as previously described (7,10) . A high contraction frequency cadence of exercise was chosen, since previous studies have suggested that the reduction of nitrite to NO is favoured as a high contraction frequency is performed (11,12) .…”

Section: Methodsmentioning

confidence: 99%

Dietary nitrate improves skeletal muscle microvascular oxygenation in HIV-infected patients receiving highly active antiretroviral therapy: a randomised, double-blind, cross-over, placebo-controlled study

et al. 2020

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Human immunodeficiency virus-1 (HIV-1) proteins and highly active antiretroviral therapy (HAART) have been associated with microvascular endothelial dysfunction. Although nitrate-rich beetroot juice (NR-BJ) consumption has been shown to improve endothelial function in clinical population, its effects in the HIV-infected patients has not been addressed. We investigated the effect of a single dose of NR-BJ on muscle oxygen saturation parameters in response to a handgrip exercise in HIV-infected patients. Fifteen HIV-infected patients received NR-BJ or nitrate-depleted beetroot juice (ND-BJ) in a double-blind cross-over design. Near-infrared spectroscopy was utilized to assess muscle oxygen saturation parameters during rhythmic handgrip exercise after NR-BJ or ND-BJ supplementation. A significant faster muscle oxygen desaturation rate during exercise (-7.97±5.00 vs -5.45±3.94 %.s-1; p=0.005) and the muscle oxygen resaturation rate during exercise recovery (0.43±0.24 vs 0.28±0.24 %.s-1; p=0.030) after NR-BJ ingestion was found. However, no significant difference in exercise time until fatigue was observed. Salivary nitrite and urinary nitrate concentration were analysed after NR-BJ or ND-BJ. A significant increase in salivary nitrite and urinary nitrate in NR-BJ condition compared to ND-BJ was observed (p<0.05). Our findings suggest that NR-BJ consumption may acutely improve muscle oxygen saturation during exercise and exercise recovery in HIV-infected patients undergoing HAART, individuals who are expected to present microvascular damage. Thus, future studies investigating the chronic effect of NR-BJ are warranted to delineate a better nutritional strategy based on nitrate-rich foods.

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“…Therefore, increased cerebral blood flow can play a role in reducing the muscle RPE and improving function after the BR supplementation ( 37 ). Based on studies ( Table 2 ), acute (2–3 h) ( 28 , 35 – 37 , 39 ), short-term (<15 day) ( 30 – 34 , 38 ), and long-term (≥15 day) ( 29 ) BR supplementation is effective for building muscle adaptations.…”

Section: The Influence Of Br Supplementation On the Skeletal Musclementioning

confidence: 99%

Possible Effects of Beetroot Supplementation on Physical Performance Through Metabolic, Neuroendocrine, and Antioxidant Mechanisms: A Narrative Review of the Literature

Arazi

Eghbali

2021

Front. Nutr.

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Athletes often seek to use dietary supplements to increase performance during exercise. Among various supplements, much attention has been paid to beetroot in recent years. Beetroot is a source of carbohydrates, fiber, protein, minerals, and vitamins; also, it is a natural source of nitrate and associated with improved sports performance. Nitrates can the modification of skeletal muscle contractile proteins or calcium handling after translation. The time to reach the peak plasma nitrate is between 1 and 3 h after consumption of a single dose of nitrate. Nitrate is metabolized by conversion to nitrite and subsequently nitric oxide. Beetroot can have various effects on athletic performance through nitric oxide. Nitric oxide is an intracellular and extracellular messenger for regulating certain cellular functions and causes vasodilation of blood vessels and increases blood flow. Nitric oxide seems to be effective in improving athletic performance by increasing oxygen, glucose, and other nutrients for better muscle fueling. Nitric oxide plays the main role in anabolic hormones, modulates the release of several neurotransmitters and the major mediators of stress involved in the acute hypothalamic-pituitary-adrenal response to exercise. Beetroot is an important source of compounds such as ascorbic acid, carotenoids, phenolic acids, flavonoids, betaline, and highly active phenolics and has high antioxidant properties. Beetroot supplement provides an important source of dietary polyphenols and due to the many health benefits. Phytochemicals of Beetroot through signaling pathways inhibit inflammatory diseases. In this study, the mechanisms responsible for these effects were examined and the research in this regard was reviewed.

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Beetroot-based gel supplementation improves handgrip strength and forearm muscle O₂ saturation but not exercise tolerance and blood volume in jiu-jitsu athletes

Abstract: 2The ergogenic effect of beetroot on the exercise performance of trained cyclists,

Cited by 23 publications

References 47 publications

Does Acute Beetroot Juice Supplementation Improve Neuromuscular Performance and Match Activity in Young Basketball Players? A Randomized, Placebo-Controlled Study

Does Acute Beetroot Juice Supplementation Improve Neuromuscular Performance and Match Activity in Young Basketball Players? A Randomized, Placebo-Controlled Study

Dietary nitrate improves skeletal muscle microvascular oxygenation in HIV-infected patients receiving highly active antiretroviral therapy: a randomised, double-blind, cross-over, placebo-controlled study

Possible Effects of Beetroot Supplementation on Physical Performance Through Metabolic, Neuroendocrine, and Antioxidant Mechanisms: A Narrative Review of the Literature

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Beetroot-based gel supplementation improves handgrip strength and forearm muscle O2 saturation but not exercise tolerance and blood volume in jiu-jitsu athletes

Abstract: 2The ergogenic effect of beetroot on the exercise performance of trained cyclists,

Cited by 23 publications

References 47 publications

Does Acute Beetroot Juice Supplementation Improve Neuromuscular Performance and Match Activity in Young Basketball Players? A Randomized, Placebo-Controlled Study

Does Acute Beetroot Juice Supplementation Improve Neuromuscular Performance and Match Activity in Young Basketball Players? A Randomized, Placebo-Controlled Study

Dietary nitrate improves skeletal muscle microvascular oxygenation in HIV-infected patients receiving highly active antiretroviral therapy: a randomised, double-blind, cross-over, placebo-controlled study

Possible Effects of Beetroot Supplementation on Physical Performance Through Metabolic, Neuroendocrine, and Antioxidant Mechanisms: A Narrative Review of the Literature

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Beetroot-based gel supplementation improves handgrip strength and forearm muscle O₂ saturation but not exercise tolerance and blood volume in jiu-jitsu athletes