Beetroot Juice Doses and Anaerobic Performance

Not Applicable

Completed

• Conditions: Anaerobic Exercise; Dietary Supplementations
• Interventions: Other: Placebo; Dietary Supplement: Beet It Sport Shot

• Registration Number: NCT02919254
• Lead Sponsor: University of Manitoba

Brief Summary

The purpose of this study is to examine the effect of varying nitrate doses of beetroot juice supplementation on dynamic, multijoint resistance exercise performance in active, trained individuals. Performance will be assessed based on parameters including neuromuscular efficiency, anaerobic performance capability, oxygen consumption, plasma nitrate/nitrite levels, specific muscle tissue biomarkers including lactate, and anthropometric measurements of select muscle groups.

Detailed Description

Not available

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study Start: 2016-08
• Study First Submitted: 2016-08-05
• Study First Submitted QC: 2016-09-27
• Study First Posted: 2016-09-29
• Primary Completion: 2017-05
• Study Completion: 2018-12
• Status Verified: 2020-01
• Last Update Submitted: 2020-01-29
• Last Update Posted: 2020-01-31

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 13

Inclusion Criteria

• Minimum 6 consecutive months experience in resistance training, engaging at least 2 times per week.
• Possess sufficient mobility to properly execute movements required in testing protocol

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Exclusion Criteria

• Usage of any banned dietary supplements or performance enhancing drugs (thermogenics, anabolic steroids, prohormones, etc.)
• Any physical condition or malady that would impede participant from performing exercise or by doing so, endanger the individual

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Placebo	Placebo	Subjects will receive a placebo beverage containing negligible nitrate for 7 days.
Moderate Dosage	Beet It Sport Shot	Subjects will receive approximately 0.5 mmol of dietary nitrate per day delivered as a commercially available beetroot juice supplement for 7 days.
High Dosage	Beet It Sport Shot	Subjects will receive approximately 8 mmol of dietary nitrate per day delivered as a commercially available beetroot juice supplement for 7 days.

Primary Outcome Measures

Name	Time	Method
Muscle activation and fiber recruitment	5 weeks	Muscle activation/fiber recruitment to be measured in millivolts (mV) using electromyography (EMG) sensor during maximum voluntary contractions (MVC) and compared between study arms.

Secondary Outcome Measures

Name	Time	Method
Oxygen consumption	5 weeks	Total oxygen consumption during testing sessions will be recorded and compared between study arms.
Plasma nitrate/nitrite levels	5 weeks	Plasma nitrate and nitrite levels will be measured at baseline and after 7 days of supplementation and compared between study arms.
Number of repetitions performed	5 weeks	Total number of repetitions in each session and number of repetitions performed at each respective % of 1 repetition maximum during each session will be recorded and compared between study arms.

Trial Locations

Locations (1)

Richardson Centre for Functional Foods and Nutraceuticals; 🇨🇦 Winnipeg, Manitoba, Canada