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

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ClinicalTrials.gov Identifier: NCT02454049
Recruitment Status : Recruiting
First Posted : May 27, 2015
Last Update Posted : August 7, 2018
Sponsor:
Information provided by (Responsible Party):
Swiss Paraplegic Centre Nottwil

Brief Summary:
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.

Condition or disease Intervention/treatment Phase
Exercise Nutritional Physiology Dietary Supplement: beetroot juice Dietary Supplement: sodium nitrate Dietary Supplement: water Not Applicable

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  (Clinical Trial)
Estimated Enrollment : 16 participants
Allocation: Randomized
Intervention Model: Factorial Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: Influence of Dietary Nitrate on Paralympics 2016 Time Trial Performance in Swiss Elite Paracycling Athletes
Actual Study Start Date : September 2016
Estimated Primary Completion Date : November 2018
Estimated Study Completion Date : December 2018

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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




Primary Outcome Measures :
  1. time to perform trial [ Time Frame: 3 hours after supplement ingestion ]

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


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Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

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

Exclusion Criteria:

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

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02454049


Contacts
Contact: Joëlle L Flück, MSc +41 41 939 66 17 joelle.flueck@paraplegie.ch
Contact: Flück L Joëlle, MSc

Locations
Switzerland
Swiss Paraplegic Centre Recruiting
Nottwil, Lucerne, Switzerland, 6207
Contact: Claudio Perret, Dr. sc. nat.    +41419396621    claudio.perret@paranet.ch   
Contact: Joëlle L Flück, MSc.         
Sponsors and Collaborators
Swiss Paraplegic Centre Nottwil
Investigators
Principal Investigator: Claudio Perret, PD PhD Swiss Paraplegic Centre

Responsible Party: Swiss Paraplegic Centre Nottwil
ClinicalTrials.gov Identifier: NCT02454049     History of Changes
Other Study ID Numbers: 2015-04
First Posted: May 27, 2015    Key Record Dates
Last Update Posted: August 7, 2018
Last Verified: August 2018