scholarly journals Influence of Nitrate Supplementation on Endurance Cyclic Sports Performance: A Systematic Review

Nutrients ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1796 ◽  
Author(s):  
Jorge Lorenzo Calvo ◽  
Francesca Alorda-Capo ◽  
Helios Pareja-Galeano ◽  
Sergio L. Jiménez
Keyword(s):  
Systematic Review ◽  
Ergogenic Effect ◽  
Endurance Athletes ◽  
Repetitive Movement ◽  
Dietary Nitrate ◽  
Chronic Dose ◽  
Review Form ◽  
Nitrate Supplementation ◽  
And Performance ◽  
Meta Analyses

Endurance can be defined as the capacity to maintain one’s velocity or power output for the longest possible time. Maintaining such activity can lead to the onset of fatigue. Dietary nitrate supplementation produces an ergogenic effect due to the improvement of mitochondrial oxygen efficiency through a reduction in the oxygen cost of exercise that increases vasodilation and blood flow to the skeletal muscle in recreationally active subjects. However, the effects of dietary nitrate supplementation on well-trained endurance athletes remain unclear; such supplementation could affect more performance areas. In the present study, a systematic review of the literature was conducted to clarify the use and effects of nitrate as a dietary supplement in endurance athletes trained in cyclic sports (repetitive movement sports). A systematic search was carried out following the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines in the databases of SCOPUS, Web of Science (WOS), Medline (PubMed), and Sport Discus from 1 January 2010 to 30 November 2019. Twenty-seven studies were included in the study. The methodological quality of the articles was assessed using the McMaster Critical Review Form. Statistically significant ergogenic results were obtained in 8 (29.63%) of the 27 studies investigated, with significant results obtained for cardiorespiratory parameters and performance measures. Improvement in exercise tolerance was obtained, which could help with exhaustion over time, while the improvement in exercise economics was not as clear. Additionally, the dose necessary for this ergogenic effect seems to have a direct relationship with the physical condition of the athlete. The acute dose is around 6–12.4 mmol/day of nitrate administered 2–3 h before the activity, with the same amount given as a chronic dose over 6–15 days. Further studies are required to understand the factors that affect the potential ergogenic impacts of nitrate on athletic performance among endurance athletes.

scholarly journals The Effect of Dietary Nitrate Supplementation on Physiology and Performance in Trained Cyclists

2017 ◽  
Vol 12 (5) ◽  
pp. 684-689 ◽  
Author(s):  
Joseph A. McQuillan ◽  
Deborah K. Dulson ◽  
Paul B. Laursen ◽  
Andrew E. Kilding
Keyword(s):  
Time Trial ◽  
Crossover Design ◽  
Moderate Intensity ◽  
Beetroot Juice ◽  
Double Blind ◽  
Dietary Nitrate ◽  
Performance Time ◽  
Exercise Economy ◽  
Nitrate Supplementation ◽  
And Performance

Purpose:To determine the effect of dietary nitrate (NO3 –) supplementation on physiology and performance in well-trained cyclists after 6–8 d of NO3 – supplementation.Methods:Eight competitive male cyclists (mean ± SD age 26 ± 8 y, body mass 76.7 ± 6.9 kg, VO2peak 63 ± 4 mL · kg–1 · min–1) participated in a double-blind, placebo-controlled, crossover-design study in which participants ingested 70 mL of beetroot juice containing ~4 mmol NO3 – (NIT) or a NO3 –-depleted placebo (PLA), each for 8 d. Replicating pretreatment measures, participants undertook an incremental ramp assessment to determine VO2peak and first (VT1) and second (VT2) ventilatory thresholds on d 6 (NIT6 and PLA6), moderate-intensity cycling economy on d 7 (NIT7 and PLA7), and a 4-km time trial (TT) on d 8 (NIT8 and PLA8).Results:Relative to PLA, 6 d of NIT supplementation produced unclear effects for VO2peak (mean ± 95% confidence limit: 1.8% ± 5.5%) and VT1 (3.7% ± 12.3%) and trivial effects for both VT2 (–1.0% ± 3.0%) and exercise economy on d 7 (–1.0% ± 1.6%). However, effects for TT performance time (–0.7% ± 0.9%) and power (2.4% ± 2.5%) on d 8 were likely beneficial.Conclusions:Despite mostly unclear outcomes for standard physiological determinants of performance, 8 d of NO3 – supplementation resulted in likely beneficial improvements to 4-km TT performance in well-trained male endurance cyclists.

scholarly journals “Beet-ing” the Mountain: A Review of the Physiological and Performance Effects of Dietary Nitrate Supplementation at Simulated and Terrestrial Altitude

2017 ◽  
Vol 47 (11) ◽  
pp. 2155-2169 ◽  
Author(s):  
Oliver Michael Shannon ◽  
Kerry McGawley ◽  
Linn Nybäck ◽  
Lauren Duckworth ◽  
Matthew John Barlow ◽  
...  
Keyword(s):  
Dietary Nitrate ◽  
Performance Effects ◽  
Nitrate Supplementation ◽  
And Performance

Effect of dietary nitrate supplementation on metabolic rate during rest and exercise in human: A systematic review and a meta-analysis

Nitric Oxide ◽  
2016 ◽  
Vol 53 ◽  
pp. 65-76 ◽  
Author(s):  
Mehdi Pawlak-Chaouch ◽  
Julien Boissière ◽  
François X. Gamelin ◽  
Grégory Cuvelier ◽  
Serge Berthoin ◽  
...  
Keyword(s):  
Systematic Review ◽  
Metabolic Rate ◽  
Meta Analysis ◽  
Dietary Nitrate ◽  
Nitrate Supplementation ◽  
Rest And Exercise

scholarly journals Muscle morphology and performance in master athletes: A systematic review and meta-analyses

2018 ◽  
Vol 45 ◽  
pp. 62-82 ◽  
Author(s):  
James Mckendry ◽  
Leigh Breen ◽  
Brandon J. Shad ◽  
Carolyn A. Greig
Keyword(s):  
Systematic Review ◽  
Master Athletes ◽  
Muscle Morphology ◽  
And Performance ◽  
Meta Analyses

scholarly journals The Effect of Dietary Nitrate Supplementation on Isokinetic Torque in Adults: A Systematic Review and Meta-Analysis

Nutrients ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 3022
Author(s):  
Ángel Lago-Rodríguez ◽  
Raúl Domínguez ◽  
Juan José Ramos-Álvarez ◽  
Francisco Miguel Tobal ◽  
Pablo Jodra ◽  
...  
Keyword(s):  
Systematic Review ◽  
Muscular Strength ◽  
Meta Analysis ◽  
Peak Torque ◽  
Gold Standard Method ◽  
Dietary Nitrate ◽  
Angular Velocities ◽  
Isokinetic Torque ◽  
Nitrate Supplementation ◽  
Isokinetic Peak Torque

Dietary nitrate (NO3−) supplementation, which can enhance performance in exercise settings involving repeated high-intensity efforts, has been linked to improved skeletal muscle contractile function. Although muscular strength is an important component of explosive movements and sport-specific skills, few studies have quantified indices of muscular strength following NO3− supplementation, particularly isokinetic assessments at different angular velocities. We performed a systematic review and meta-analysis to determine whether dietary NO3− supplementation improves peak torque, as assessed by the gold standard method of isokinetic dynamometry, and if this effect was linked to the angular velocity imposed during the assessment. Dialnet, Directory of Open Access Journals, MEDLINE, PubMed, SciELO, Scopus, and SPORTDiscus were searched for articles using the following search strategy: (nitrate OR beet*) AND (supplement* OR nutr* OR diet*) AND (isokinetic OR strength OR “resistance exercise” OR “resistance training” OR “muscular power”). The meta-analysis of data from 5 studies with 60 participants revealed an overall effect size of −0.01 for the effect of nitrate supplementation on isokinetic peak torque, whereas trivial effect sizes ranging from −0.11 to 0.16 were observed for independent velocity-specific (90°/s, 180°/s, 270°/s, and 360°/s) isokinetic peak torque. Four of the five studies indicated that dietary NO3− supplementation is not likely to influence voluntary knee extensor isokinetic torque across a variety of angular velocities. These results suggest that NO3− supplementation does not influence isokinetic peak torque, but further work is required to elucidate the potential of NO3− supplementation to influence other indices of muscular strength, given the dearth of experimental evidence on this topic.

scholarly journals Systematic Review of COVID-19 Treatment and Management

2021 ◽  
Vol 3 (122) ◽  
pp. 11-24
Author(s):  
Chijioke Gospel Tonycheta
Keyword(s):  
Systematic Review ◽  
Health Care Systems ◽  
Global Challenge ◽  
Online Databases ◽  
Care Systems ◽  
And Performance ◽  
Novel Coronavirus ◽  
Meta Analyses ◽  
Control And Management ◽  
And Control

COVID-19 is an emerging infectious disease, first reported in Wuhan, China. The deadly disease currently known as SARS-CoV-2 can affect everyone regardless of race, gender or age. However, people suffering from underlying medical conditions such as hypertension, diabetes, and other chronic diseases are at the biggest risk for developing more intense symptoms and complications. The global challenge in the containment of COVID-19 has led to a massive death rate and resulted in many economic, social, and health burdens around the world, leading to the question of the dynamic of COVID-19 management treatment. Therefore, this paper aimed to systematically review different past and present studies to develop a possible solution on how COVID-19 can be managed and treated. The articles were searched from five online databases: Science Direct, PubMed/Medline, Web of Science, Embase, and Scopus. The systematic review was guided by the guidelines presented in the preferred reporting items for systematic reviews and meta-analyses (PRISMA) from 2019–2021. Thirteen articles were included after reviewing seventy-two articles. Three hypotheses guided the study; clinical management, telehealth technology, and performance intelligence as an effective way of managing and controlling COVID-19. The study concludes there is no proven treatment for the virus yet, but clinical treatment, telehealth technology, and performance intelligence can effectively manage and control the virus.  It also recommends policymakers should support the development and the implementation of performance intelligence based on the evidence and standardized data available for effective and pandemic resilience health care systems that will address the control and management of the virus. Keywords: SARS2, SARS-CoV-2, Novel Coronavirus, 2019nCoV, COVID-19.

scholarly journals Impact of dietary nitrate supplementation on exercise capacity and cardiovascular parameters in chronic respiratory disease: a systematic review and meta-analysis

2021 ◽  
Vol 8 (1) ◽  
pp. e000948
Author(s):  
Abdullah S Alsulayyim ◽  
Ali M Alasmari ◽  
Saeed M Alghamdi ◽  
Michael I Polkey ◽  
Nicholas S Hopkinson
Keyword(s):  
Systematic Review ◽  
Respiratory Disease ◽  
Exercise Capacity ◽  
Pulmonary Rehabilitation ◽  
Meta Analysis ◽  
Mean Difference ◽  
Short Term ◽  
Cardiovascular Parameters ◽  
Dietary Nitrate ◽  
Nitrate Supplementation

BackgroundDietary nitrate supplementation, usually in the form of beetroot juice, may improve exercise performance and endothelial function. We undertook a systematic review and meta-analysis to establish whether this approach has beneficial effects in people with respiratory disease.MethodsA systematic search of records up to March 2021 was performed on PubMed, CINAHL, MEDLINE (Ovid), Cochrane and Embase to retrieve clinical trials that evaluated the efficacy of dietary nitrate supplementation on cardiovascular parameters and exercise capacity in chronic respiratory conditions. Two authors independently screened titles, abstracts and full texts of potential studies and performed the data extraction.ResultsAfter full-text review of 67 papers, eleven (two randomised controlled trials and nine crossover trials) involving 282 participants met the inclusion criteria. Three were single dose; seven short term; and one, the largest (n=122), done in the context of pulmonary rehabilitation. Pooled analysis showed that dietary nitrate supplementation reduced systolic blood pressure (BP), diastolic BP and mean arterial pressure (mean difference (95% CI), −3.39 mm Hg (−6.79 to 0.01); p=0.05 and –2.20 mm Hg (−4.36 to −0.03); p=0.05 and −4.40 mm Hg (−7.49 to −1.30); p=0.005, respectively). It was associated with increased walk distance in the context of pulmonary rehabilitation (standardised mean difference (95% CI), 0.47 (0.11 to 0.83), p=0.01), but no effect was identified in short-term studies (0.08 (−0.32 to 0.49).ConclusionDietary nitrate supplementation may have a beneficial effect on BP and augment the effect of pulmonary rehabilitation on exercise capacity. Short-term studies do not suggest a consistent benefit on exercise capacity.PROSPERO registration numberCRD42019130123.

scholarly journals Performance and Health Benefits of Dietary Nitrate Supplementation in Older Adults: A Systematic Review

Nutrients ◽  
2017 ◽  
Vol 9 (11) ◽  
pp. 1171 ◽  
Author(s):  
Luke Stanaway ◽  
Kay Rutherfurd-Markwick ◽  
Rachel Page ◽  
Ajmol Ali
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Health Benefits ◽  
Dietary Nitrate ◽  
Nitrate Supplementation
Sign in / Sign up

Export Citation Format

Share Document