Fish Oils and Soybean Lecithin Supplementation Modulate Immune Function in Runners

NCT ID: NCT03364699

Last Updated: 2017-12-06

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

46 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-03-31

Study Completion Date

2015-03-31

Brief Summary

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The purpose of this study was evaluate the comparative effects of FO rich in EPA (FO-EPA) and FO rich in DHA (FO-DHA) on inflammation and neutrophil properties after a prolonged and strenuous exercise. The effect of soybean lecithin on the same parameters and conditions also was evaluated.

Detailed Description

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The volunteers were not taking any medication during the study. All individuals signed an informed consent form to the study protocol. Both experimental procedure and informed consent form of this study were in accordance with Guide for the Care and Use of Humans.

All volunteers performed two half-marathons. In the first half-marathon, all participants were not supplemented. Dietary supplementation was initiated immediately after the first race. The volunteers were randomly separated into 3 groups: Soybean lecithin group; Fish oil-DHA group and Fish oil-EPA group. The volunteers ingested 3 g daily of SL or FO-DHA containing 1.5 g DHA and 0.3 g EPA or FO-EPA containing 1.6 g EPA and 0.3 g DHA (EPA:DHA = 5.4:1) during 60 days.

Experimental design:

First race - not supplemented, blood samples were collected before (Phase I) and immediately after race (Phase II).

Second race - dietary supplemented, blood samples were collected before (Phase III) and immediately after the race (Phase IV).

Results were analyzed by two-way analysis of variance (two-way ANOVA) and Tukey post-hoc test. The statistical analysis of the half-marathon effect was performed using nonparametric t tests. Results were considered statistically significant for P\<0.05.

Conditions

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Immune Dysfunction

Keywords

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strenuous exercise dietary supplementation immune system leucocyte function inflammation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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dietary supplementation

The volunteers ingested 3 g daily of Soybean lecithin or fish oil rich in docosa-hexanoic acid (DHA) containing 1.5 g DHA and 0.3 g EPA (DHA:EPA = 5:1) or fish oil rich in eicosapentaenoic acid (EPA) containing 1.6 g EPA and 0.3 g DHA (EPA:DHA = 5.4:1) during 60 days.

Group Type ACTIVE_COMPARATOR

dietary supplementation

Intervention Type DIETARY_SUPPLEMENT

The volunteers ingested 3 g daily of Soybean lecithin or fish oil rich in docosa-hexanoic acid (DHA) containing 1.5 g DHA and 0.3 g EPA (DHA:EPA = 5:1) or fish oil rich in eicosapentaenoic acid (EPA) containing 1.6 g EPA and 0.3 g DHA (EPA:DHA = 5.4:1) during 60 days.

Exercise

All volunteers performed two half-marathons. In the first half-marathon, all participants were not supplemented. In the second half-marathon, participants were supplemented. Blood samples were collected before and after both half-marathon race.

Group Type EXPERIMENTAL

dietary supplementation

Intervention Type DIETARY_SUPPLEMENT

The volunteers ingested 3 g daily of Soybean lecithin or fish oil rich in docosa-hexanoic acid (DHA) containing 1.5 g DHA and 0.3 g EPA (DHA:EPA = 5:1) or fish oil rich in eicosapentaenoic acid (EPA) containing 1.6 g EPA and 0.3 g DHA (EPA:DHA = 5.4:1) during 60 days.

Exercise

Intervention Type OTHER

All volunteers performed two half-marathons. In the first half-marathon, all participants were not supplemented. In the second half-marathon, all participants were supplemented. Blood samples were collected before and after both half-marathon race.

Interventions

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dietary supplementation

The volunteers ingested 3 g daily of Soybean lecithin or fish oil rich in docosa-hexanoic acid (DHA) containing 1.5 g DHA and 0.3 g EPA (DHA:EPA = 5:1) or fish oil rich in eicosapentaenoic acid (EPA) containing 1.6 g EPA and 0.3 g DHA (EPA:DHA = 5.4:1) during 60 days.

Intervention Type DIETARY_SUPPLEMENT

Exercise

All volunteers performed two half-marathons. In the first half-marathon, all participants were not supplemented. In the second half-marathon, all participants were supplemented. Blood samples were collected before and after both half-marathon race.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

Healthy recreational half-marathon runners.

Exclusion Criteria

Auto-immune disease Inflammatory disease Cardiorespiratory disease
Minimum Eligible Age

20 Years

Maximum Eligible Age

45 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Fundação de Amparo à Pesquisa do Estado de São Paulo

OTHER_GOV

Sponsor Role collaborator

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior.

OTHER_GOV

Sponsor Role collaborator

Conselho Nacional de Desenvolvimento Científico e Tecnológico

OTHER_GOV

Sponsor Role collaborator

University of Sao Paulo

OTHER

Sponsor Role lead

Responsible Party

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Tania Cristina Pithon-Curi

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Tania C Pithon-Curi, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Sao Paulo and Cruzeiro do Sul University

Locations

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Cruzeiro do Sul University

São Paulo, , Brazil

Site Status

Countries

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Brazil

Other Identifiers

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979/2010

Identifier Type: -

Identifier Source: org_study_id