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OpenTrials
Completed

NCT Number: NCT05209139

Beetroot Juice Ingestion Effects on Field Hockey Performance.

Scientific evidence supports that only a few dietary supplements have reported good evidence for improving sports performance, between we can mention beetroot juice supplementation with doses > 5 mmol of NO3-. In this randomized placebo-controlled study, we investigated the effects of BJ acute supplementation in improving neuromuscular performance and match-play demands in female field hockey players.

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Key information

Conditions

Nitrates Hockey

Age range

18 year–35 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Universidad Francisco de Vitoria

Madrid, 28223, Spain

About this study

Beetroot juice supplementation has demonstrated good evidence for improving sports performance, however, benefits in team sports, especially in female athletes, are underrepresented. In this randomized placebo-controlled study, we investigated the effects of beetroot juice acute supplementation in improving neuromuscular performance and match-play demands.Testing sessions will comprise a neuromuscular test battery consisting of a countermovement jump (CMJ), isometric handgrip strength, 20-m sprint and repeated sprint ability test, followed by a 20-minute simulated field hockey Physical match activity (distances, speeds, accelerations and decelerations) will be monitored in real-time using an inertial tracking system

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Elite female field hockey players (playing in First Field Hockey Division).
  • More than 8 years of field hockey training experience.

Exclusion criteria

  • Concurrently participating in other studies.
  • Contraindications associated to beetroot ingestion.
  • Health problems or musculoskeletal injuries 6 months previous to study realization

Treatment and study plan

Beetroot juice

Dietary Supplement

One serving 70 mL of beetroot juice (6.4 mmol of NO3-; Beet-It-Pro Elite Shot, James White Drinks Ltd., Ipswich, UK) 3 h before initiating the testing session.

Beetroot juice placebo

Dietary Supplement

One serving 70 mL of beetroot juice placebo (0.04 mmol of NO3-; Beet-It-Pro Elite Shot, James White Drinks Ltd., Ipswich, UK) 3 h before initiating the testing session.

Primary outcomes

  1. Changes in simulated field hockey match demands (m/min)

    Time frame: 1 week

    Using a global position system (GPS)

  2. Changes in repeated-sprint-ability test (s)

    Time frame: 1 week

    Time to complete the modified repeated sprint ability test using photocell timing gates

Secondary outcomes

  1. Changes in sprint time (s)

    Time frame: 1 week

    Time to complete 20-m sprints using photocell timing gates

  2. Changes in maximal jump height (cm)

    Time frame: 1 week

    Maximal jump height using a contact platform

  3. Changes in maximal isometric handgrip strength (N)

    Time frame: 1 week

    Using a hand-held dynamometer

Sponsors and collaborators

Lead sponsor

Universidad Francisco de Vitoria

Other

Collaborators

  • University of Alcala
  • University of Seville

Registry information

Official study title

Acute Effects of Beetroot Juice Ingestion on Neuromuscular Performance and Match-play Demands in Elite Female Hockey Players.

Acronym: BEETHOCKEY

Important dates

Study start
2018
Primary completion
2018
Study completion
2018
First posted
Jan 26, 2022
Registry last updated
Apr 14, 2022

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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