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Physical Activity, Calcium, and Bone in Children

NCT00000415 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 224

Last updated 2013-06-04

No results posted yet for this study

Summary

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.

Conditions

  • Physical Activity
  • Nutrition

Interventions

PROCEDURE

Physical activity

DRUG

Calcium supplement

Sponsors & Collaborators

  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)

    collaborator NIH

  • South Dakota State University

    lead OTHER

Principal Investigators

  • Bonny Specker, PhD · South Dakota State University

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Model
FACTORIAL

Eligibility

Min Age
3 Years
Max Age
4 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
1998-04-30
Primary Completion
2003-02-28
Completion
2003-03-31

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00000415 on ClinicalTrials.gov