Effect of Grape Juice Consumption on the Parameters of Oxidative Stress and Muscle Fatigue in Judo Athletes

NCT03186573 | Completed DMC

• 1 other identifier: UFCSPAPortoAlegre
• Study Type: interventional
• Target: 12
• Locations: 1 country
• Sites: 1

Brief Summary

This project aims to evaluate if after 14 days of grape juice ingestion there is improvement of the parameters of strength, fatigue and oxidative stress in judo fighters. The study will be a randomized, blind, crossover clinical trial of 20 Judo athletes. Judo wrestling simulations will be performed on 3 different days.

Conditions

Oxidative Stress; Muscle Fatigue; Polyphenol; Free Radical Oxidation of Tissue

Outcome Measures

Primary Outcomes (1)

• Oxidative stress In Blood Collection

  A disturbance in the prooxidant-antioxidant balance in favor of the former, leading to potential damage.

  15 days

Secondary Outcomes (1)

• Borg in scale.

  15 days

Other Outcomes (4)

• Lactate in numbers

  15 days

• Upper and lower limb strength in repetitions or numbers in meters

  15 days

• Palmar grip strength - in strength and time

  15 days

Study Arms (3)

Control Group

NO INTERVENTION

The athletes will not receive any drink and will do the simulations of the fight.

Intervention group

ACTIVE COMPARATOR

(Intervention, grape juice) - athletes will receive 400 ml per day of grape juice (containing 66g of carbohydrates) for 14 days and will do the fight simulations.

Dietary Supplement: Grape juice

Placebo Group

PLACEBO COMPARATOR

(Placebo, grape-flavored maltodextrin carbohydrate) - athletes will receive400ml of drink daily with 66g of maltodextrin for 14 days and will do the fight simulations; The amount of maltodextrin is equal to the amount of carbohydrate present in grape juice.

Dietary Supplement: Maltodextrin

Interventions

Grape juice DIETARY_SUPPLEMENT

400ml diary of grape juice

Intervention group

Maltodextrin DIETARY_SUPPLEMENT

400ml diary of maltodextrin

Placebo Group

Eligibility Criteria

• Age: 15 Years - 24 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Judo athletes, federated, who hold state, federal and international competitions of both sexes, aged between 15 and 24 years and any weight category of the sport, except free weight.

You may not qualify if:

• Recent injury (last 3 months) that prevents training or competition;
• Food restriction on grape juice;
• Being in the phase of fast weight loss in pre competition..

Sponsors & Collaborators

• Federal University of Health Science of Porto Alegre: lead

Study Sites (1)

Cláudia Dornelles Schneider

Porto Alegre, Rio Grande do Sul, Brazil

Location

MeSH Terms

Interventions

maltodextrin

Study Officials

• Cláudia Dornelles Schneider

  Federal University of Health Science of Porto Alegre

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, INVESTIGATOR
• Masking Details: Double blind study
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Nutricionist

Model Details: Randomized clinical trial

Study Record Dates

• First Submitted: June 10, 2017
• First Posted: June 14, 2017
• Study Start: May 11, 2017
• Primary Completion: June 22, 2017
• Study Completion: August 17, 2017
• Last Updated: January 26, 2018

Record last verified: 2017-09

Locations

BR (1)