Vitamin D Supplementation in Physical Performance

Healthy Clinical Trial

Official title:

Efficacy of Vitamin D Supplementation in Physical Performance of Iranian Elite Athletes

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03325686
• Other study ID #: 054-575
• Status: Completed
• Phase: N/A
• First received: October 20, 2017
• Last updated: October 27, 2017
• Start date: March 1, 2017
• Est. completion date: September 30, 2017

Study information

• Verified date: October 2017
• Source: National Nutrition and Food Technology Institute
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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

Description:

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 70
• Est. completion date: September 30, 2017
• Est. primary completion date: September 1, 2017
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 30 Years

Eligibility

Inclusion Criteria:

• healthy

• professional athletes

Exclusion Criteria:

• receiving vitamin D supplement in past 3 months

Related Conditions & MeSH terms

• Athletes
• Healthy

Intervention

Dietary Supplement:
• vitamin D supplement
D; received 50,000 IU of vitamin D supplement weekly

Other:
• Placebo
placebo

Locations

Country	Name	City	State
Iran, Islamic Republic of	National Nutrition and Food Technology Research Institute	Tehran	Tehran

Sponsors (1)

Lead Sponsor	Collaborator
National Nutrition and Food Technology Institute

Country where clinical trial is conducted

Iran, Islamic Republic of, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Changes from baseline serum 25-hydroxy vitamin D at eight weeks	nmol/L	8 weeks
Secondary	Changes from baseline Truncal Fat at eight weeks	percent	8 weeks
Secondary	Changes from baseline visceral fat at eight weeks	percent	8 weeks
Secondary	Changes from Strength leg press at 8 weeks	percent	8 weeks
Secondary	Changes from Ergojump at 8 weeks	percent	8 weeks
Secondary	Changes from baseline Vertical jump at 8 weeks	percent	8 weeks
Secondary	Change from baseline Agility at 8 weeks	percent	8 weeks
Secondary	changes from Speed at 8 weeks	percent	8 weeks