Status:
COMPLETED
The Effects of Vitamin D Supplementation on Aerobic Fitness in Athletes
Lead Sponsor:
University of Ulster
Collaborating Sponsors:
Northern Ireland Executive
Conditions:
Aerobic Fitness (VO2max)
Eligibility:
All Genders
18+ years
Phase:
PHASE4
Brief 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 fu...
Eligibility Criteria
Inclusion
- Athletes whose sport does not primarily consist of an anaerobic component
- Apparently healthy
- Over the age of 18
Exclusion
- Resting arterial hypertension
- Individuals who are not an athlete at a University/local sports team
- Athletes who predominantly utilise anaerobic energy systems
- Athletes under the age of 18
- Those that have consumed a supplement containing vitamin D (greater than 400IU/day) or iron supplements for up to 30 days prior to starting the study
- Those with health conditions identified by the screening questionnaire
- Individuals that are on prescribed medication that is known to affect vitamin D metabolism
- Those following a vegan diet
- Those with a physical disability that would prevent successful completion of the exercise test
- Those who have either had a sun holiday in the 4 weeks prior to starting the study
- Those planning a sun holiday during the intervention period
Key Trial Info
Start Date :
October 1 2014
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
April 1 2015
Estimated Enrollment :
44 Patients enrolled
Trial Details
Trial ID
NCT02278172
Start Date
October 1 2014
End Date
April 1 2015
Last Update
May 25 2016
Active Locations (1)
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1
Human Intervention Studies Unit (HISU), University of Ulster
Coleraine, Londonderry, United Kingdom, BT52 1SA