The Effects of Nitrate Supplementation on Elite Runners

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

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

Study Overview

• Status: Completed
• Conditions: Nitrates; Nutrition; Physical Performance; Sport Physiology; Elite Athletes
• Intervention / Treatment: Dietary supplement: Placebo; Dietary supplement: nitrate-rich beetroot juice

Detailed Description

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

• Study Type: Interventional
• Enrollment (Actual): 12
• Phase: Not Applicable

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

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

Exclusion Criteria:

• Injury

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Triple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Intervention group; Participants in this group ingested nitrate-rich beetroot juice for 15 days	Dietary supplement: nitrate-rich beetroot juice; Nitrate-rich beetroot juice supplementation was administered for 15 consecutive days to participants in this arm; Other Names: Beetroot juice
Placebo Comparator: Placebo group; Participants in this group ingested a placebo drink for 15 days	Dietary supplement: Placebo; Placebo drink

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Running economy	The cost of running (oxygen consumption) at different speeds	Changes from baseline at 15 days

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Time to exhaustion	Time that the athlete endured running until voluntarily ending the exercise	Changes from baseline at 15 days
Muscle power	Ability to produce muscle power in a jump test	Changes from baseline at 15 days
Muscle oxygenation	Saturation of O2 in the vastus lateralis during exercise	Changes from baseline at 15 days
RPE	Rate of perceived exertion during the exercise	Changes from baseline at 15 days
Running mechanics	Contact and flight time of each step during the exercise	Changes from baseline at 15 days

Collaborators and Investigators

• Sponsor: Universidad Autonoma de Madrid
• Collaborators: Universidad Politecnica de Madrid; Camilo Jose Cela University
• Investigators: Principal Investigator: Carlos Balsalobre-Fernández, PhD, Universidad Autonoma de Madrid

Study record dates

Study Major Dates

• Study Start (Actual): November 1, 2016
• Primary Completion (Actual): January 10, 2017
• Study Completion (Actual): November 15, 2017

Study Registration Dates

• First Submitted: February 19, 2018
• First Submitted That Met QC Criteria: February 22, 2018
• First Posted (Actual): March 1, 2018

Study Record Updates

• Last Update Posted (Actual): March 1, 2018
• Last Update Submitted That Met QC Criteria: February 22, 2018
• Last Verified: February 1, 2018

More Information

Terms related to this study

• Other Study ID Numbers: BEETRUN

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: Coded database with data of the pre-post measures will be made available
• IPD Sharing Time Frame: Indefinitely available
• IPD Sharing Access Criteria: Open access
• IPD Sharing Supporting Information Type: ANALYTIC_CODE

Study Data/Documents

1. Individual Participant Data Set

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No