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

July 3, 2017 updated by: Jakob Agergaard, Bispebjerg Hospital

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

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

40

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Denmark
      • Copenhagen, Denmark, DK-2400
        • Institute of Sports Medicine - Bispebjerg Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Cross-sectional area of thigh musculature and knee tendon
Time Frame: 12 weeks
12 weeks
VDR potential target CYP27b1
Time Frame: 12 weeks
12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Bispebjerg Hospital

Collaborators

Institute of Sports Medicine, Copenhagen

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2010

Primary Completion (Actual)

February 1, 2012

Study Completion (Actual)

January 1, 2013

Study Registration Dates

First Submitted

December 2, 2010

First Submitted That Met QC Criteria

December 2, 2010

First Posted (Estimate)

December 3, 2010

Study Record Updates

Last Update Posted (Actual)

July 5, 2017

Last Update Submitted That Met QC Criteria

July 3, 2017

Last Verified

July 1, 2017

More Information

Terms related to this study

Other Study ID Numbers

  • BBH 77

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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