Beetroot Juice Ingestion Effects on Field Hockey Performance.

Not Applicable

Completed

• Conditions: Hockey; Nitrates
• Interventions: Dietary Supplement: Beetroot juice; Dietary Supplement: Beetroot juice placebo

• Registration Number: NCT05209139
• Lead Sponsor: Universidad Francisco de Vitoria

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.

Detailed Description

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

Study Timeline

• Study Start: 2018-03-01
• Primary Completion: 2018-03-08
• Study Completion: 2018-03-15
• Study First Submitted: 2022-01-14
• Study First Submitted QC: 2022-01-14
• Study First Posted: 2022-01-26
• Status Verified: 2022-04
• Last Update Submitted: 2022-04-13
• Last Update Posted: 2022-04-14

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Female
• Target Recruitment: 11

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Placebo supplementation	Beetroot juice	Acute placebo supplementation
Beetroot supplementation	Beetroot juice placebo	Acute beetroot juice supplementation
Placebo supplementation	Beetroot juice placebo	Acute placebo supplementation
Beetroot supplementation	Beetroot juice	Acute beetroot juice supplementation

Primary Outcome Measures

Name	Time	Method
Changes in simulated field hockey match demands (m/min)	1 week	Using a global position system (GPS)
Changes in repeated-sprint-ability test (s)	1 week	Time to complete the modified repeated sprint ability test using photocell timing gates

Secondary Outcome Measures

Name	Time	Method
Changes in sprint time (s)	1 week	Time to complete 20-m sprints using photocell timing gates
Changes in maximal jump height (cm)	1 week	Maximal jump height using a contact platform
Changes in maximal isometric handgrip strength (N)	1 week	Using a hand-held dynamometer

Trial Locations

Locations (1)

Universidad Francisco de Vitoria; 🇪🇸 Madrid, Spain