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Completed

NCT Number: NCT03449992

The Effects of Nitrate Supplementation on Elite Runners

This study analyzed the effects of 15 days of beetroot juice supplementation on different performance measures in elite Spanish distance runners

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Key information

Conditions

Nutrition Elite Athletes Nitrates Physical Performance Sport Physiology

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

About this study

This study analyzed the effects of 15 days beetroot juice supplementation on the VO2max, running economy, exercise perceived exertion, muscle power and locomotion mechanics in a group of 12 elite Spanish middle and long distance runners

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Competing in national and international events
  • Personal best in urban 10k: 33 minutes 0 seconds

Exclusion criteria

  • Injury

Treatment and study plan

Nitrate-rich beetroot Juice

Dietary Supplement

Nitrate-rich beetroot juice supplementation was administered for 15 consecutive days to participants in this arm

Other names: Beetroot juice

Placebo

Dietary Supplement

Placebo drink

Primary outcomes

  1. Running economy

    Time frame: Changes from baseline at 15 days

    The cost of running (oxygen consumption) at different speeds

Secondary outcomes

  1. Time to exhaustion

    Time frame: Changes from baseline at 15 days

    Time that the athlete endured running until voluntarily ending the exercise

  2. Muscle power

    Time frame: Changes from baseline at 15 days

    Ability to produce muscle power in a jump test

  3. Muscle oxygenation

    Time frame: Changes from baseline at 15 days

    Saturation of O2 in the vastus lateralis during exercise

  4. RPE

    Time frame: Changes from baseline at 15 days

    Rate of perceived exertion during the exercise

  5. Running mechanics

    Time frame: Changes from baseline at 15 days

    Contact and flight time of each step during the exercise

Sponsors and collaborators

Lead sponsor

Universidad Autonoma de Madrid

Other

Collaborators

  • Camilo Jose Cela University
  • Universidad Politecnica de Madrid

Registry information

Official study title

The Effects of Beet-root Juice Supplementation on Exercise Economy, Rating of Perceived Exertion and Running Mechanics in Elite Distance Runners

Important dates

Study start
2016
Primary completion
2017
Study completion
2017
First posted
Mar 1, 2018
Registry last updated
Mar 1, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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