NCT03186573

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

Effect of Grape Juice Consumption on the Parameters of Oxidative Stress and Muscle Fatigue in Judo Athletes: A Randomized Clinical Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 12 (actual)
• Sponsor: Federal University of Health Science of Porto Alegre · Academic / Other
• Sex: All
• Age: 15 Years – 24 Years
• Healthy volunteers: Accepted

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.

Detailed description

Grape juice has a high concentration of phenolic compounds and is capable of modulating biochemical parameters and oxidative stress. By naturally containing carbohydrates grape juice can help acutely minimize fatigue during exercise as well as long-term oxidative stress parameters in athletes. 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. Each exercise session will consist of four 7-minute bouts, with 14-minute rest between them. The athletes will perform a first fight simulation without ingestion of any beverage (control group 1), and then will be randomized to determine the order of participation in the groups: maltodextrin (group 2 placebo) and grape juice (intervention group 3). Analyzes of oxidative stress; Muscle strength and fatigue; Perceived effort rate; Lactate; Heart rate; Analysis of food consumption and body composition.Two-way ANOVA will be used to evaluate the relation of the intervention and physical exercise, besides parameters of strength and fatigue. The level of significance adopted will be 5% and for the analysis, the SPSS summer 23 statistical program will be used.

Conditions

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

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Grape juice	400ml diary of grape juice
DIETARY_SUPPLEMENT	Maltodextrin	400ml diary of maltodextrin

Timeline

• Start date: 2017-05-11
• Primary completion: 2017-06-22
• Completion: 2017-08-17
• First posted: 2017-06-14
• Last updated: 2018-01-26

Locations

1 site across 1 country: Brazil