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Effect of an Antioxidant-rich Diet During Moderate Altitude Training

NCT03088891 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 35

Last updated 2017-03-23

No results posted yet for this study

Summary

Athletes, especially in endurance sports, are at increased risk of oxidative stress and inflammation-related diseases and injuries. The production of reactive oxygen and nitrogen species (RONS) and inflammatory markers increase during exercise and especially during altitude training. Antioxidant supplementation is commonly used among athletes in the belief that it prevents oxidative stress and oxidative damage. A transient increase of RONS is however necessary to activate signaling cascades initiating training adaptation. Antioxidant supplementation has been shown to inhibit the exercise effects in several independent studies, possibly by interfering/reducing the signal cascades initiated by RONS. However, it is unknown whether a high intake of antioxidant rich foods can affect the amount of RONS, inflammation markers and/or training adaptation. The investigators want to examine whether an increased intake of natural antioxidants in the form of antioxidant-rich foods fruits, vegetables and berries, in line with the official Norwegian dietary advice can affect antioxidant status, immune function and training adaptation associated with altitude training in Norwegian elite athletes.

Conditions

Interventions

OTHER

Antioxidant-rich snacks

Bama Smoothies (Bama, Oslo, Norway), Freia Premium Dark Chocolate (Freia, Oslo, Norway), Walnuts (Eldorado, Norway), Dried fruits and berries (Cranberries, Gojiberries, apricots)(Bama, Oslo, Norway and Rema 1000, Norway)

OTHER

Control snacks

Milkshake (Tine, Oslo, Norway), YT restitusjonsdrikk (Tine, Oslo, Norway), Bixit (Sætre, Oslo, Norway), Ritz (Mondelez, Oslo, Norway), White chololate (Freia, Oslo, Norway)

Sponsors & Collaborators

  • Norwegian School of Sport Sciences

    collaborator OTHER

  • Norwegian Olympic Federation, Oslo, Norway

    collaborator UNKNOWN

  • University of Oslo

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
16 Years
Max Age
42 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2015-10-31
Primary Completion
2015-11-30
Completion
2015-11-30

Countries

  • Norway

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03088891 on ClinicalTrials.gov