This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

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

This study has been completed.
Institute of Sports Medicine, Copenhagen
Information provided by (Responsible Party):
Jakob Agergaard, Bispebjerg Hospital Identifier:
First received: December 2, 2010
Last updated: July 3, 2017
Last verified: July 2017

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: Participant, Investigator
Primary Purpose: Other
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 ]

Enrollment: 40
Study Start Date: November 2010
Study Completion Date: January 2013
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
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

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: July 3, 2017

Additional relevant MeSH terms:
Vitamin D
Growth Substances
Physiological Effects of Drugs
Bone Density Conservation Agents processed this record on July 24, 2017