NCT00000415|CompletedPhase 2
Physical Activity, Calcium, and Bone in Children
Calcium Modifies Bone Response to Activity in Children
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Calcium Modifies Bone Response to Activity in Children
Sponsor study identifier
NIH
Secondary identifiers
NIH
interventional
224
1 country
1
Study Start
April 1998
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
February 2003
Actual (reported)Study Completion
March 2003
Actual (reported)Doctors recommend that young children participate in daily physical activity to promote bone health. However, studies in adults show that physical activity and increased calcium intake cause noticeable benefits for bone health only when both factors occur together. The goal of this study is to find out whether calcium intake changes the response of bone to activity in children 3 to 4 years old. Children will participate in one of two programs conducted in childcare centers 5 days a week for 1 year. One program will involve activities that use large muscles (gross motor activity). The other will involve activities using small muscles (fine motor activity). We will give a calcium supplement (1 gram per day) to half of the children in each program and give the other half an inactive pill. We will measure bone mass and bone mineral density at the beginning and end of the study. We will take measurements 12 months after the program's completion to see if physical activity and/or calcium supplements have long-term effects on bone mineral density and physical activity.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
March 2003
Actual (reported)Click on a node to explore related trials.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
April 1998
Date type not reportedThis date has not been verified as actual or estimated.
November 3, 1999
Actual (reported)November 4, 1999
Actual (reported)February 2003
Actual (reported)March 2003
Actual (reported)Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
South Dakota State University
Brookings, South Dakota, 57007, United States
Specker B, Binkley T. Randomized trial of physical activity and calcium supplementation on bone mineral content in 3- to 5-year-old children. J Bone Miner Res. 2003 May;18(5):885-92. doi: 10.1359/jbmr.2003.18.5.885.
Bonny Specker, PhD
South Dakota State University
First Submitted
November 3, 1999
First Posted
November 4, 1999
Study Start
April 1998
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
February 2003
Actual (reported)Virtual Fitness Buddy Ecosystem
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Study Completion
March 2003
Actual (reported)Last Updated
June 4, 2013
Record last verified: 2013-06
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Source: ClinicalTrials.gov.
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