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Supplementary Intake of Vitamin D During 12 Weeks Strength Training in Younger and Older People

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified February 2012 by Jakob Agergaard, Bispebjerg Hospital.
Recruitment status was:  Active, not recruiting
Institute of Sports Medicine, Copenhagen
Information provided by (Responsible Party):
Jakob Agergaard, Bispebjerg Hospital Identifier:
First received: December 2, 2010
Last updated: February 3, 2012
Last verified: February 2012

The aim is to investigate the importance of vitamin D levels to achieve the effect of strength training. If we can show that vitamin D has an effect of training, the ultimate goal is to find out why and how vitamin D affects muscle.

This would potentially have important implications for public health. Since a large number of populations, including elderly, are shown to have too little vitamin D and also has low muscle strength, it will be essential that these people added vitamin D in relation to training and rehabilitation.

Condition Intervention
Muscle Strength
Tendon Elasticity
Muscle CSA
Tendon CSA
VDR Receptor
Other: 12 weeks Strength exercise training

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Investigator)
Official Title: The Importance of Supplementary Intake of Vitamin D on the Efficacy of 12 Weeks of Strength Training in Both Vitamin D Sufficient Younger and Older People

Resource links provided by NLM:

Further study details as provided by Jakob Agergaard, Bispebjerg Hospital:

Primary Outcome Measures:
  • Cross-sectional area of thigh musculature and knee tendon [ Time Frame: 12 weeks ]
  • VDR potential target CYP27b1 [ Time Frame: 12 weeks ]

Estimated Enrollment: 40
Study Start Date: November 2010
Primary Completion Date: February 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Vitamin D Other: 12 weeks Strength exercise training
Training 3 times a week, leg extensions and leg press
Placebo Comparator: Calcium tablet Other: 12 weeks Strength exercise training
Training 3 times a week, leg extensions and leg press


Ages Eligible for Study:   20 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Men 20-30 or 60-75 years old

Exclusion Criteria:

  • smokers Knee problems On medication affecting protein synthesis High exposure to sun light (ex. ski holiday) during the trial
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Please refer to this study by its identifier: NCT01252381

Institute of Sports Medicine - Bispebjerg Hospital
Copenhagen, Denmark, DK-2400
Sponsors and Collaborators
Bispebjerg Hospital
Institute of Sports Medicine, Copenhagen
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Jakob Agergaard, MSc, PhD Student, Bispebjerg Hospital Identifier: NCT01252381     History of Changes
Other Study ID Numbers: BBH 77
Study First Received: December 2, 2010
Last Updated: February 3, 2012

Additional relevant MeSH terms:
Vitamin D
Growth Substances
Physiological Effects of Drugs
Bone Density Conservation Agents processed this record on May 25, 2017