Influence of Dietary Nitrate on Time Trial Performance in Swiss Paracycling Athletes (nitrate_TT)

January 17, 2019 updated by: Swiss Paraplegic Centre Nottwil

Influence of Dietary Nitrate on Paralympics 2016 Time Trial Performance in Swiss Elite Paracycling Athletes

The aim of this study is to investigate wether beetroot juice or sodium nitrate enhances time trial performance in Swiss paracycling athletes compared to the ingestion of a placebo supplement. Furthermore, the effects of beetroot juice and sodium nitrate on performance will be investigated in spinal cord injured and non-injured athletes.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The influence of dietary nitrate on performance will be tested performing a time trial on a handbike. The time trial will be the same as in the Paralympics 2016 in Rio. The subjects perform three trials and receive another supplement for each trial: beetroot juice with 6mmol nitrate, 6mmol sodium nitrate or plain water (placebo supplement). The time to complete the time trial will be the main outcome parameter.

Study Type

Interventional

Enrollment (Actual)

9

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Switzerland
    • Lucerne
      • Nottwil, Lucerne, Switzerland, 6207
        • Swiss Paraplegic Centre

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • healthy paracycling athletes
  • healthy, able-bodied, upper-body trained individuals

Exclusion Criteria:

  • female
  • smoking
  • any medication affecting performance
  • medical conditions affecting performance

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: beetroot juice
beetroot juice containing 6mmol nitrate, ingested 3hours before the exercise test
Dietary supplement: beetroot juice
6mmol nitrate
Active Comparator: sodium nitrate
6mmol sodium nitrate dissolved in plain water, ingested 3hours before the exercise test
Dietary supplement: sodium nitrate
6mmol sodium nitrate
Placebo Comparator: water
85ml of plain water, ingested 3 hours before the exercise test
Dietary supplement: water
plain water

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
time to perform trial
Time Frame: 3 hours after supplement ingestion
3 hours after supplement ingestion

Secondary Outcome Measures

Outcome Measure
Time Frame
oxygen consumption during time trial performance measured by a metabolic cart (Oxycon Pro) in ml/min/kg
Time Frame: 3 hours after supplement ingestion
3 hours after supplement ingestion

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Swiss Paraplegic Centre Nottwil

Investigators

  • Principal Investigator: Claudio Perret, PD PhD, Swiss Paraplegic Centre

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 2016

Primary Completion (Actual)

November 1, 2018

Study Completion (Actual)

December 1, 2018

Study Registration Dates

First Submitted

May 19, 2015

First Submitted That Met QC Criteria

May 21, 2015

First Posted (Estimate)

May 27, 2015

Study Record Updates

Last Update Posted (Actual)

January 18, 2019

Last Update Submitted That Met QC Criteria

January 17, 2019

Last Verified

January 1, 2019

More Information

Terms related to this study

Other Study ID Numbers

  • 2015-04

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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