Effect of Beetroot Juice Supplements on Lower-limb Strength in Females

NCT04987619 | Completed

• 1 other identifier: BEETROOT JUICE
• Study Type: interventional
• Target: 11
• Locations: 2 countries
• Sites: 6

Brief Summary

This study aims to evaluate the effects of beetroot juice supplements on lower-limb strength and muscular endurance in physically active women, due to the presence of NO3- in beetroot juice.

Conditions

Muscular Endurance

Keywords

Explosive force production; Beetroot juice; Beetroot; muscular endurance

Outcome Measures

Primary Outcomes (1)

• Change of height reached in jump

  Evaluated through CMJ (Counter movement jump) test with a recovery period of 45 seconds between jumps.

  Week 1, 2 and 3.

Secondary Outcomes (4)

• Movement velocity

  Visit 1 (week 1), 2 (week 2) and 3 (week 3).

• Power on back squat

  Visit 1 (week 1), 2 (week 2) and 3 (week 3).

• Muscular endurance test

  Visit 1 (week 1), 2 (week 2) and 3 (week 3).

• Rating of perceived exertion (RPE).

  Visit 1 (week 1), 2 (week 2) and 3 (week 3).

Study Arms (2)

BJR

EXPERIMENTAL

70 mL of beetroot juice (BEET It Sport®; James White Drinks Ltd., Ipswich, UK)

Dietary Supplement: Beetroot juice

PLA

PLACEBO COMPARATOR

70 mL of blackcurrant beverage Capri-Sun.

Other: Capri-Sun

Interventions

Beetroot juice DIETARY_SUPPLEMENT

Subjects will drink juice 120 minutes before each visit

BJR

Capri-Sun OTHER

70 mL of blackcurrant beverage, which is depleted of NO3- will be taken 120 min before each visit.

PLA

Eligibility Criteria

• Age: 18 Years - 30 Years
• Gender Eligibility Details: Gender identity
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Physically active females with 18-30 years of age
• More than 6 months on RT training programs
• Be familiarized with back squat, leg press and leg extension exercises
• Not consuming any type of nutritional supplement or anabolic substances in the previous three months or during the study
• Not suffering from a musculoskeletal injury that could interfere with the exercise protocol during the investigation

You may not qualify if:

• None

Sponsors & Collaborators

• Maimónides Biomedical Research Institute of Córdoba: lead

Study Sites (6)

Studies Research Group in Neuromuscular Responses (GEPREN), University of Lavras

Lavras, 37200-000, Brazil

Location

Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba

Córdoba, 14004, Spain

Location

Metabolism and Investigation Unit, Maimonides Biomedical Research Institute of Cordoba (IMIBIC),Reina Sofia University Hospital, University of Cordoba

Córdoba, 14004, Spain

Location

Department of Food Science and Technology, Rabanales University Campus, University of Cordoba

Córdoba, 14071, Spain

Location

Department of Nursing Pharmacology and Physiotherapy, Faculty of Medicine and Nursing, University of Córdoba

Córdoba, 14071, Spain

Location

Departamento de Motricidad Humana y Rendimiento Deportivo, Universidad de Sevilla

Seville, 41013, Spain

Location

Study Officials

• Jose Manuel Jurado Castro

  Hospital Universitario Reina Sofía

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, INVESTIGATOR
• Masking Details: The order in which the participants will consume one supplement or another will be assigned randomly and double blind by an external collaborator to the research team, who will be responsible for coding the bottles.
• Purpose: OTHER
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: The experimental procedure will consist of three visits, separate from each other by one week, to achieve the total elimination of any effects caused by BJR as well as the optimal recovery of the participants.

Study Record Dates

• First Submitted: July 20, 2021
• First Posted: August 3, 2021
• Study Start: July 5, 2021
• Primary Completion: August 29, 2021
• Study Completion: August 29, 2021
• Last Updated: August 31, 2021

Record last verified: 2021-07

Data Sharing

• IPD Sharing: Will share
• Time Frame: After results are published
• Access Criteria: Upon request to study's principal investigator

Locations

BR (1); ES (5)