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Exercise PerformanceNCT03565523

The Effect of Dietary Nitrate Supplementation on Linear Running Sprint Performance, Agility and Vertical Jump Performance in a Rested and Fatigued State

A study testing Beetroot in people with Exercise Performance, run by PepsiCo Global R&D.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Dietary nitrate (NO3-) supplementation has been shown to improve skeletal muscle contractility and fatigue resistance, particularly in fast-twitch (type II) muscle fibers. Furthermore, NO3- supplementation has been shown to speed reaction time. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Exercise Performance
What is being tested?
Beetroot
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
32 participants
Where
No sites listed yet
Study dates
1 Sep 2016to 30 Apr 2017
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Male and female participants in self-reported good general health as assessed by the standard procedures described below and specifically meeting normal blood pressure range (systolic: 100-135, diastolic: 60-90) and body mass index (BMI) range (16.0-29.9)
  • Range of 18-45 years of age
  • Participants must participate in an intermittent exercise based sport (e.g. soccer, rugby, hockey), at a competitive level (i.e. competes in officiated matches/games).
  • Understanding of the procedures to be undertaken as part of the study
  • Willingness to participate in exercise testing and follow supplementation guidelines and other instructions provided by the experimenter
  • Informed, voluntary, written consent to participate in the study

Who cannot join

  • Known pulmonary, cardiovascular or metabolic disease
  • Food allergies including phenylketonurea (PKU)
  • Current regular use of any dietary supplement (excluding macronutrient based supplements) or previous use of any dietary supplement in the past 6 months that is known to have a lasting effect.
  • Blood donation within 3 months prior to the start of the study
  • Substance abuse within 2 years of the start of the study
  • Smoking
Show all 9Show fewer
  • Any prescription and non-prescription medication which may impact saliva production (antidepressants, diuretics, analgesics, antihistamines, anti-hyper/hypo-tensives, anti-anxiety, appetite suppressants).
  • Current or previous use of phosphodiesterase 5 (PDE5) inhibitors.
  • Participation in another clinical trial within past 4 weeks.

About this study

Dietary nitrate (NO3-) supplementation has been shown to improve skeletal muscle contractility and fatigue resistance, particularly in fast-twitch (type II) muscle fibers. Furthermore, NO3- supplementation has been shown to speed reaction time. Taken together, these findings suggest that NO3- ingestion may be ergogenic during all-out sprint running and reactive agility tasks. Moreover, increasing muscle force production at high contraction speeds would be expected to translate into improved muscle power and, subsequently, improved performance in very explosive forms of exercise, such as vertical jumping. Therefore, the purpose of this investigation is to assess the effect of short term (5 days) NO3- supplementation on linear running sprint performance, reactive agility and vertical jump performance in a rested and fatigued state.

Being tested
Beetroot, Placebo beverage

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BeetrootOther

    Containing 385 mg nitrate

  • Placebo beverageOther

    <0.1 mmol nitrate in sucrose solution with beet coloring

Study groups in NCT03565523
Study groupRoleWhat they receive
Test Beet shotExperimentalContaining 385 mg nitrate
Receives: Other: Beetroot
Placebo beveragePlacebo comparator<0.1 mmol nitrate in sucrose solution with beet coloring
Receives: Other: Placebo beverage

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Linear running sprint time

    Linear running sprint in a rested and fatigued state

    Measured: 5 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Jun 2018
  2. Study start1 Sep 2016
  3. Primary completion31 Mar 2017
  4. Study completion30 Apr 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
32 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03565523
Sponsor's protocol ID
PEP-1607
Status last verified
Jun 2018
First submitted
6 Jun 2018
Last updated
21 Jun 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Beetroot in people with Exercise Performance, run by PepsiCo Global R&D.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 21 Jun 2018. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Linear running sprint time (time frame: 5 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Jun 2018.

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