Effects of Dietary Nitrate Intake on Cardiovascular Performance in Response to Hand Grip Test in Bodybuilders

NCT ID: NCT05835401

Last Updated: 2025-07-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

13 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-04-17

Study Completion Date

2023-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Through a randomized, crossover, double-blind, placebo-controlled clinical trial, 20 bodybuilders will participate a acute-day trial with two intervention protocols: 1) placebo and 2) nitrate; in which will ingest beet juice with or without NO3 in its composition with a 7-day washout interval.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Steroid Abuse Cardiovascular Abnormalities

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Experimental (Beetroot juice NO3)

Acute ingestion of beetroot juice rich in NO3 (800mg).

Group Type EXPERIMENTAL

Beetroot juice rich in nitrate

Intervention Type DIETARY_SUPPLEMENT

The participant will intake beetroot juice rich in NO3 (800mg). Two hours after intake the last bottle of juice, the participants will go to the laboratory for the handgrip and cardiovascular tests evaluation. Before crossover protocol a 7-day washout interval will be given for the purification of the compounds provided by the protocols.

Placebo (Beetroot juice without NO3)

Acute ingestion of beetroot juice rich depleted in NO3.

Group Type PLACEBO_COMPARATOR

Beetroot juice depleted in nitrate

Intervention Type DIETARY_SUPPLEMENT

The participant will intake beetroot juice depleted in NO3. Two hours after intake the last bottle of juice, the participants will go to the laboratory for the handgrip and cardiovascular tests evaluation. Before crossover protocol a 7-day washout interval will be given for the purification of the compounds provided by the protocols.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Beetroot juice rich in nitrate

The participant will intake beetroot juice rich in NO3 (800mg). Two hours after intake the last bottle of juice, the participants will go to the laboratory for the handgrip and cardiovascular tests evaluation. Before crossover protocol a 7-day washout interval will be given for the purification of the compounds provided by the protocols.

Intervention Type DIETARY_SUPPLEMENT

Beetroot juice depleted in nitrate

The participant will intake beetroot juice depleted in NO3. Two hours after intake the last bottle of juice, the participants will go to the laboratory for the handgrip and cardiovascular tests evaluation. Before crossover protocol a 7-day washout interval will be given for the purification of the compounds provided by the protocols.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Anabolic steroid use in the past or actually;
* Participation at least one bodybuilding competition;

Exclusion Criteria

* Previous history of acute myocardial infarction and/or stroke;
* Allergy or intolerance to nitrate, gluten, or milk;
* Medications (proton pump inhibitors, beta-blockers, calcium channels antagonists).
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

University of Sao Paulo

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Cicero Jonas R Benjamim

Principal investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Cicero Jonas Rodrigues Benjamim, PhD Student

Role: PRINCIPAL_INVESTIGATOR

University of Sao Paulo

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

EEFERP - USP / Laboratório de Fisiologia do Exercício e Metabolismo

Ribeirão Preto, São Paulo, Brazil

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Brazil

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

BodyBeet

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Dietary Nitrate for Heart Failure
NCT01682356 COMPLETED PHASE1/PHASE2
The Nitrite and Coronary Flow Study
NCT04354051 COMPLETED PHASE1/PHASE2
Nitrite Infusion Studies
NCT00102271 COMPLETED PHASE1