Vitamin D Status and Effect of Supplementation on Strength, Speed and Body Composition in rugby union players.
Not Applicable
Completed
- Conditions
- Strength, in elite rugby union playersSprinting speed, in elite rugby union playersBody composition, in elite rugby union playerselite sport performanceMusculoskeletal - Normal musculoskeletal and cartilage development and function
- Registration Number
- ACTRN12612001233819
- Lead Sponsor
- Dr Kirsty Fairbairn
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- Male
- Target Recruitment
- 60
Inclusion Criteria
Rugby players training in the Otago and Southland ITM Cup pre-season training squads, including development players.
Aged 18 years and over, and able to undergo strength and speed testing.
Exclusion Criteria
Aged under 18 years of age; currently taking Vitamin D supplements; the presence of any chronic disease such as heart disease, diabetes or cancer; the presence of any conditions that affect hormone metabolism (primarily growth hormone and insulin metabolism); smokers.
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Sprint speed. Power calculations were performed for 30 metre sprint time (seconds), measured by timing lights as part of routine performance testing.[At Baseline, either 5 or 6 weeks and either 11 or 12 weeks (squad dependent) following baseline data collection.];10 metre sprint time (seconds), measured by timing lights as part of routine performance testing.[At Baseline, either 5 or 6 weeks and either 11 or 12 weeks (squad dependent) following baseline data collection.]
- Secondary Outcome Measures
Name Time Method