Impact of Beetroot Juice Ingestion on Female Rugby Performance

Overview

Rugby is a team sport characterized by high-intermittent efforts, due to the importance of realizing intermittent and explosive efforts in rugby the use of nutritional strategies such as beetroot ingestion should be explored with the aim to enhance the capacity for repeating high-intensity actions in female players.

Full Title of Study: “Impact of an Acute Beetroot Ingestion on Neuromuscular Performance in Female Rugby Players”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Crossover Assignment
    • Primary Purpose: Treatment
    • Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
  • Study Primary Completion Date: January 27, 2022

Detailed Description

Rugby is a team sport characterized by high-intermittent efforts, thus, to the importance of realizing intermittent and explosive efforts in field hockey is crucial. For this reason, the use of nutritional strategies in field hockey should be explored with the aim to enhance the capacity for repeating high-intensity actions. However, scientific evidence supports only a few numbers of dietary supplements that have reported good evidence for improving sports performance, between we can mention beetroot juice supplementation with doses > 5 mmol of NO3-. Beetroot juice is a NO3- precursor with recognized effectiveness to elicit performance due to different physiological mechanisms associated with its ingestion such as increment in vasodilatation, skeletal muscle contractility, or delaying fatigue development that could be linked with an enhance or performance in team-sports athletes. However, the majority of the studies has been realized in male athletes being female athletes underrepresented in beetroot juice supplementation research. Thus, the aim of this study was to analyze the effects of beetroot juice ingestion on neuromuscular performance in female rugby players.

Interventions

  • Dietary Supplement: Beetroot juice
    • Acute effects of beetroot juice ingestion on neuromuscular performance in female rugby players

Arms, Groups and Cohorts

  • Experimental: Beetroot supplementation
    • One serving 140 mL of beetroot juice (12.8 mmol of NO3-; Beet-It-Pro Elite Shot, James White Drinks Ltd., Ipswich, UK) 3 h before initiating the testing session.
  • Placebo Comparator: Placebo supplementation
    • One serving 140 mL of beetroot juice placebo (0.08 mmol of NO3-; Beet-It-Pro Elite Shot, James White Drinks Ltd., Ipswich, UK) 3 h before initiating the testing session.

Clinical Trial Outcome Measures

Primary Measures

  • Changes in Bronco Aerobic Fitness Test
    • Time Frame: 1-week
    • Time to complete test using photocell timing gates

Secondary Measures

  • Changes in maximal isometric handgrip strength (kg)
    • Time Frame: 1-week
    • Using a hand-held dynamometer
  • Changes in maximal jump height (cm)
    • Time Frame: 1 week
    • Maximal jump height using a contact platform
  • Changes in 30-meters sprint time (s)
    • Time Frame: 1 week
    • Time to complete 30-m sprints using photocell timing gates
  • Changes in rate of perceived exertion scale
    • Time Frame: 1-week
    • Differences between placebo and beetroot juice in rate of perception exertion scale
  • Changes in side effects questionnarie
    • Time Frame: 1-week
    • Differences between placebo and beetroot juice in side effects health aspects

Participating in This Clinical Trial

Inclusion Criteria

  • More than 5 years of rugby training experience. – Active rugby player Exclusion Criteria:

  • Concurrently participating in other studies. – Contraindications to beetroot juice ingestion. – Physical limitations, health problems, or musculoskeletal injuries.

Gender Eligibility: Female

This study analyze the effects of beetroot juice ingestion in female rugby players.

Minimum Age: 18 Years

Maximum Age: 40 Years

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • Universidad Francisco de Vitoria
  • Collaborator
    • University of Seville
  • Provider of Information About this Clinical Study
    • Sponsor

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