NCT02621320

Vitamin D Supplementation in Wheelchair Indoor Athletes

Effect of Vitamin D3 Supplementation on Exercise Performance in Wheelchair Athletes.

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 20 (actual)
• Sponsor: Swiss Paraplegic Research, Nottwil · Network
• Sex: Male
• Age: 18 Years – 65 Years
• Healthy volunteers: Accepted

Summary

There is a high prevalence of vitamin D deficiency in Switzerland. In indoor-athletes as well as wheelchair users, vitamin D deficiency occurs even more often. It is well established that vitamin D deficiency has a negative effect on health. However, vitamin D supplementation in individuals with a vitamin D deficiency has a positive effect on muscle performance. In recently published studies with able-bodied subjects, it has been shown that a normal vitamin D level (\>75nmol/L) can only be achieved with a high-dose supplementation of vitamin D. The aim of this study is to examine the effect of vitamin D supplementation on exercise performance in wheelchair athletes with vitamin D deficiency . All participants with a vitamin D deficiency are assigned to the intervention group and treated with 6000 IU of vitamin D3 daily over a period of 12 weeks. All participants who have a normal vitamin D level will receive placebo treatment (control group). The physical performance is measured three times at baseline, after six weeks and 12 weeks. The measurements include a Wingate and a dynamometer test.

Conditions

• Vitamin D Deficiency
• Spinal Cord Injury
• Drug Effects
• Dietary Supplements
• Physical Education and Training/Methods

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Vitamin D	Vitamin D3 (Vi-De 3®. WILD) 6000IU daily over a period of 12 weeks.
DIETARY_SUPPLEMENT	Placebo	alcohol-based solution 1.3ml daily over a period of 12 weeks.

Timeline

• Start date: 2015-11-01
• Primary completion: 2016-07-01
• Completion: 2016-08-01
• First posted: 2015-12-03
• Last updated: 2016-11-22

Locations

1 site across 1 country: Switzerland