NCT02278172

The Effects of Vitamin D Supplementation on Aerobic Fitness in Athletes

The Effects of Vitamin D Supplementation on VO2max in Athletes: a Randomised, Double-blind, Placebo-controlled Trial

• Status: Completed
• Phase: Phase 4
• Study type: Interventional
• Enrollment: 44 (actual)
• Sponsor: University of Ulster · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

The primary aim of the study is to identify if vitamin D3 supplementation influences VO2max in athletes. Secondary aims are to determine if vitamin D3 supplementation impacts on measures of muscle function, lung function, body composition, immune function and the self-reported incidence of upper respiratory tract infection. This double-blind, randomised, placebo-controlled trial is of parallel design and will aim to recruit a total of 50 athletes randomised into either a placebo or treatment group for a 12-week intervention.

Conditions

• Aerobic Fitness (VO2max)

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Vitamin D	3000IU (75 μg) vitamin D in a commercially available oral spray solution
DIETARY_SUPPLEMENT	Placebo	Placebo oral spray solution manufactured to mimic the vitamin D oral spray

Timeline

• Start date: 2014-10-01
• Primary completion: 2015-04-01
• Completion: 2015-04-01
• First posted: 2014-10-29
• Last updated: 2016-05-25

Locations

1 site across 1 country: United Kingdom