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

NCT ID: NCT04987619

Last Updated: 2021-08-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

11 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-07-05

Study Completion Date

2021-08-29

Brief Summary

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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.

Detailed Description

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Beetroot juice (BJR) is used as an ergogenic aid, but no study has analyzed its' effects on explosive force production in physically active women. It has been proposed that females could blunt reduction of NO2- to NO based on a higher oxidative skeletal muscle phenotype than males. However, it has been observed a higher increase on plasma NO2- levels after supplementation compared to and a greater enhancement on muscle contractile function.

Based on the absence of any study that has analyzed the effect of NO3- supplements on jump ability and power production on weightlifting on female population; the purpose of this study will be to investigate the possible ergogenic effect of BJR on physically active women on explosive force production and muscular endurance in a lower-limb body weightlifting protocol, due to the presence of NO3- in BJR and its effects.

Conditions

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Muscular Endurance

Keywords

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Explosive force production Beetroot juice Beetroot muscular endurance

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

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.
Primary Study Purpose

OTHER

Blinding Strategy

DOUBLE

Participants Investigators
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.

Study Groups

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BJR

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

Group Type EXPERIMENTAL

Beetroot juice

Intervention Type DIETARY_SUPPLEMENT

Subjects will drink juice 120 minutes before each visit

PLA

70 mL of blackcurrant beverage Capri-Sun.

Group Type PLACEBO_COMPARATOR

Capri-Sun

Intervention Type OTHER

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

Interventions

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Beetroot juice

Subjects will drink juice 120 minutes before each visit

Intervention Type DIETARY_SUPPLEMENT

Capri-Sun

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

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* 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

Exclusion Criteria

* None
Minimum Eligible Age

18 Years

Maximum Eligible Age

30 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Maimónides Biomedical Research Institute of Córdoba

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jose Manuel Jurado Castro

Role: PRINCIPAL_INVESTIGATOR

Hospital Universitario Reina Sofía

Locations

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

Lavras, , Brazil

Site Status

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

Córdoba, , Spain

Site Status

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

Córdoba, , Spain

Site Status

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

Córdoba, , Spain

Site Status

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

Córdoba, , Spain

Site Status

Departamento de Motricidad Humana y Rendimiento Deportivo, Universidad de Sevilla

Seville, , Spain

Site Status

Countries

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Brazil Spain

Other Identifiers

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BEETROOT JUICE

Identifier Type: -

Identifier Source: org_study_id