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Bone Development in Adolescent Girls: Effects of Calcium and Exercise

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ClinicalTrials.gov Identifier: NCT00063011
Recruitment Status : Unknown
Verified May 2003 by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD).
Recruitment status was:  Active, not recruiting
First Posted : June 20, 2003
Last Update Posted : June 24, 2005
Sponsor:
Information provided by:
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Tracking Information
First Submitted Date  ICMJE June 19, 2003
First Posted Date  ICMJE June 20, 2003
Last Update Posted Date June 24, 2005
Study Start Date  ICMJE May 1998
Primary Completion Date Not Provided
Current Primary Outcome Measures  ICMJE Not Provided
Original Primary Outcome Measures  ICMJE Not Provided
Change History No Changes Posted
Current Secondary Outcome Measures  ICMJE Not Provided
Original Secondary Outcome Measures  ICMJE Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Bone Development in Adolescent Girls: Effects of Calcium and Exercise
Official Title  ICMJE Calcium and Exercise Effect on Pubertal Bone Gain
Brief Summary Osteoporosis is a major public health problem. Prevention of osteoporosis depends in part on good bone development in childhood and adolescence. This study will evaluate a weight-bearing exercise program and high-calcium diet on bone development in adolescent girls.
Detailed Description

There are currently few safe and effective methods for restoring lost bone to the osteoporotic skeleton. Therefore, prevention of osteoporosis is crucial. If skeletal development can be maximized during growth, young people will begin adulthood with optimal bone mass and will be less likely to develop osteoporosis in later years. This study will determine the effects of weight-bearing physical activity and a high-calcium diet on bone mass in adolescent girls.

Participants in this study will be randomized to one of three study arms. Girls in Arm 1 will consume their usual diets and will participate in a weight-bearing exercise program that meets 3 times per week. Girls in Arm 2 will also participate in a weight-bearing exercise program that meets 3 times per week and will be given high calcium foods to supply 1500 mg of calcium per day. Girls in Arm 3 will consume their usual diet and maintain their customary activity level. Study visits occur every 6 months; participants will be followed for 4 ½ years. Assessments will include a medical and social history and measurements of spine, hip, radius, and total body bone mineral content (BMC); calcaneal speed of sound (SOS); height; weight; and Tanner stage.

Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 1
Phase 2
Study Design  ICMJE Allocation: Randomized
Intervention Model: Factorial Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Condition  ICMJE Osteoporosis
Intervention  ICMJE
  • Behavioral: Calcium rich diet
  • Behavioral: Weight bearing exercise
Study Arms  ICMJE Not Provided
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Unknown status
Enrollment  ICMJE
 (submitted: June¬†23,¬†2005)
107
Original Enrollment  ICMJE Same as current
Study Completion Date  ICMJE Not Provided
Primary Completion Date Not Provided
Eligibility Criteria  ICMJE

Inclusion Criteria

  • Tanner Stage of Development: Stage 1

Exclusion Criteria

  • History of lactose intolerance, milk allergy, corticosteroid or anticonvulsant therapy, familial hypercholesterolemia, mental or physical handicaps, cancer, rheumatoid arthritis, asthma, or any other significant health problem
  • Body mass index (BMI) >= 85th percentile for age and gender
  • Regularly have more than two practice sessions per week of dance, gymnastics, or organized team sports
Sex/Gender  ICMJE
Sexes Eligible for Study: Female
Ages  ICMJE 9 Years to 10 Years   (Child)
Accepts Healthy Volunteers  ICMJE Yes
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE United States
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT00063011
Other Study ID Numbers  ICMJE R01HD036601( U.S. NIH Grant/Contract )
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Not Provided
Study Sponsor  ICMJE Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Principal Investigator: Joan M. Lappe, Ph.D. Creighton University
PRS Account Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Verification Date May 2003

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP