Beetroot Juice Ingestion and Vertical Jump Performance

Study Overview
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Brief Summary
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Beetroot juice is a dietary supplement with good evidence for improving sports performance in different sport contexts, however, the evidence about the effects of beetroot juice in jump capacity is unclear. Thus, the aim of this study was to conduct a comprehensive examination of beetroot juice effects on vertical jump performance

Detailed Description
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Beetroot juice is a dietary supplement with good evidence for improving sports performance in different sport contexts, however, the evidence about the effects of beetroot juice in jump capacity is unclear. Therefore a deeper knowledge about the effects of beetroot juice on several components of vertical jump performance remain largely unexplored between we can mention phase duration peak power, average power, peak velocity, initial force, and peak force. Thus, the aim of this study was to conduct a comprehensive examination of beetroot juice effects on several countermovement jump components.

Official Title
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Acute Effects of Beetroot Juice Ingestion on Components of Vertical Jump Performance

Conditions
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Dietary Supplements

Intervention / Treatment
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* Dietary Supplement: Beetroot juice


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Experience in resistance training (at least 18 months of three weekly sessions). A one-repetition maximum weight (1 RM) higher than bodyweight in the bench press and of 1.5 of body weight in squat exercise No sports supplement was taken in the previous three months No smoking. No cardiovascular, pulmonary or neurological disease. To not be considered an elite athlete. Exclusion Criteria: Age <18 year or > 35 years.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 35 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Beetroot supplementation<br>One serving 140 mL of beetroot juice (12.8 mmol of NO3-; Beet-It-Pro Elite Shot, James White Drinks Ltd., Ipswich, UK) after an overnight fast and 3 h before initiating the testing session. | Dietary Supplement: Beetroot juice<br>* 140 mL of beetroot juice or beetroot juice placebo<br>|
| Placebo Comparator: Placebo supplementation<br>One serving of beetroot juice depleted in NO3- (0.08 mmol of NO3-) as placebo (Beet It; James White Drinks Ltd, Ipswich, UK) after an overnight fast and 3 h before initiating the testing session. | Dietary Supplement: Beetroot juice<br>* 140 mL of beetroot juice or beetroot juice placebo<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Jump height | Maximal jump height using a force platform | 72-hours | 
| Peak Power | Maximal peak power obtained using a force platform | 72-hours | 
| Average power | Average power obtained using a force platform | 72-hours | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Peak velocity | Peak velocity obtained using a force platform | 72-hours | 
| Phase durations | Concentric /Isometric/Eccentric phases obtained using a force platform | 72-hours |