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Vitamin D Supplementation in Physical Performance

NCT ID: NCT03325686

Last Updated: 2017-10-30

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

70 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-03-01

Study Completion Date

2017-09-30

Brief Summary

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This study was performed to evaluate the efficacy of weekly vitamin D supplementation on athletic performance in Iranian athletes

Detailed Description

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Seventy subjects were enrolled in the study. The athletes were randomly divided into two groups: vitamin D supplement (D; received 50,000 IU of vitamin D supplement weekly) and control (P, received a placebo weekly). Duration of the study was eight weeks. Anthropometric, dietary, athletic performance and biochemical evaluations were performed for all subjects in the beginning and in the end of the intervention period.

Conditions

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Healthy Athletes

Keywords

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vitamin D atletes physical performance

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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vitamin D supplement

D

Group Type EXPERIMENTAL

vitamin D supplement

Intervention Type DIETARY_SUPPLEMENT

D; received 50,000 IU of vitamin D supplement weekly

control

P

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type OTHER

placebo

Interventions

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vitamin D supplement

D; received 50,000 IU of vitamin D supplement weekly

Intervention Type DIETARY_SUPPLEMENT

Placebo

placebo

Intervention Type OTHER

Other Intervention Names

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D P

Eligibility Criteria

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Inclusion Criteria

* healthy
* professional athletes

Exclusion Criteria

* receiving vitamin D supplement in past 3 months
Minimum Eligible Age

18 Years

Maximum Eligible Age

30 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Nutrition and Food Technology Institute

OTHER

Sponsor Role lead

Responsible Party

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Tirang R. Neyestani, Ph.D.

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Tirang R. Neyestani, PhD

Role: STUDY_CHAIR

Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute (NNFTRI) and Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Locations

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National Nutrition and Food Technology Research Institute

Tehrān, Tehran Province, Iran

Site Status

Countries

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Iran

Other Identifiers

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054-575

Identifier Type: -

Identifier Source: org_study_id