NCT05209139

Brief Summary

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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
11

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2018

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2018

Completed
7 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 8, 2018

Completed
7 days until next milestone

Study Completion

Last participant's last visit for all outcomes

March 15, 2018

Completed
3.8 years until next milestone

First Submitted

Initial submission to the registry

January 14, 2022

Completed
12 days until next milestone

First Posted

Study publicly available on registry

January 26, 2022

Completed
Last Updated

April 14, 2022

Status Verified

April 1, 2022

Enrollment Period

7 days

First QC Date

January 14, 2022

Last Update Submit

April 13, 2022

Conditions

NitratesHockey

Keywords

dietary supplementssports nutritionfield hockeyfemale

Outcome Measures

Primary Outcomes (2)

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

    Using a global position system (GPS)

    1 week

  • Changes in repeated-sprint-ability test (s)

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

    1 week

Secondary Outcomes (3)

  • Changes in sprint time (s)

    1 week

  • Changes in maximal jump height (cm)

    1 week

  • Changes in maximal isometric handgrip strength (N)

    1 week

Study Arms (2)

Beetroot supplementation

EXPERIMENTAL

Acute beetroot juice supplementation

Dietary Supplement: Beetroot juiceDietary Supplement: Beetroot juice placebo

Placebo supplementation

PLACEBO COMPARATOR

Acute placebo supplementation

Dietary Supplement: Beetroot juiceDietary Supplement: Beetroot juice placebo

Interventions

Beetroot juiceDIETARY_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 supplementationPlacebo supplementation
Beetroot juice placeboDIETARY_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.

Beetroot supplementationPlacebo supplementation

Eligibility Criteria

Age18 Years - 35 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

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

You may not qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Universidad Francisco de Vitoria

Madrid, 28223, Spain

Location

Related Publications (1)

  • Lopez-Samanes A, Perez-Lopez A, Morencos E, Munoz A, Kuhn A, Sanchez-Migallon V, Moreno-Perez V, Gonzalez-Frutos P, Bach-Faig A, Roberts J, Dominguez R. Beetroot juice ingestion does not improve neuromuscular performance and match-play demands in elite female hockey players: a randomized, double-blind, placebo-controlled study. Eur J Nutr. 2023 Apr;62(3):1123-1130. doi: 10.1007/s00394-022-03052-1. Epub 2022 Nov 19.

    PMID: 36401662DERIVED

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 14, 2022

First Posted

January 26, 2022

Study Start

March 1, 2018

Primary Completion

March 8, 2018

Study Completion

March 15, 2018

Last Updated

April 14, 2022

Record last verified: 2022-04

Locations

ES(1)