Vitamin D Supplementation in Physical Performance
Not Applicable
Completed
- Conditions
- HealthyAthletes
- Interventions
- Other: PlaceboDietary Supplement: vitamin D supplement
- Registration Number
- NCT03325686
- Lead Sponsor
- National Nutrition and Food Technology Institute
- Brief Summary
This study was performed to evaluate the efficacy of weekly vitamin D supplementation on athletic performance in Iranian athletes
- Detailed 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 & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 70
Inclusion Criteria
- healthy
- professional athletes
Exclusion Criteria
- receiving vitamin D supplement in past 3 months
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description control Placebo P vitamin D supplement vitamin D supplement D
- Primary Outcome Measures
Name Time Method Changes from baseline serum 25-hydroxy vitamin D at eight weeks 8 weeks nmol/L
- Secondary Outcome Measures
Name Time Method Changes from baseline Truncal Fat at eight weeks 8 weeks percent
Changes from baseline visceral fat at eight weeks 8 weeks percent
Changes from Strength leg press at 8 weeks 8 weeks percent
Changes from Ergojump at 8 weeks 8 weeks percent
Changes from baseline Vertical jump at 8 weeks 8 weeks percent
Change from baseline Agility at 8 weeks 8 weeks percent
changes from Speed at 8 weeks 8 weeks percent
Trial Locations
- Locations (1)
National Nutrition and Food Technology Research Institute
🇮🇷Tehrān, Tehran, Iran, Islamic Republic of