Osteoporosis Prevention in Preadolescent Girls

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00000413
Recruitment Status : Completed
First Posted : November 4, 1999
Last Update Posted : December 29, 2006
Information provided by:
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)

Brief Summary:

This study will test an osteoporosis prevention program aimed at preadolescent girls between the ages of 10 and 12 who have not yet started their menstrual periods. Girls in this age group are adding large amounts of new bone to their skeletons. Adding more bone at this time of life can reduce a person's chances of developing osteoporosis (thinning bones) in later years.

We will look at how this osteoporosis prevention program affects the amount of calcium in the girls' diets, the amount of weight-bearing exercise they do, and their bone mass measured using ultrasound testing of the heel.

Condition or disease Intervention/treatment Phase
Osteoporosis Behavioral: Psychoeducational program Phase 2

Detailed Description:

The study's objective is to demonstrate the efficacy of a behavioral/educational intervention in increasing levels of dietary calcium intake and weight-bearing exercise within an at-risk population in a stage of rapid accrual of bone mass-specifically, premenarchal girls between the ages of 10 and 12. We will use cluster randomization to randomize girls to either the intervention or a program of education only. We will randomize eighteen groups of girls into each arm of the study.

The intervention consists of six interactive sessions using various media (i.e., overhead transparencies, graphics, and three-dimensional demonstrations) to present instructional material. Topics include an explanation of osteoporosis and its modifiable and nonmodifiable risk factors, prevention of osteoporosis via healthy food choices (i.e., high calcium, low fat foods), and prevention of osteoporosis via weight-bearing exercise. Each girl monitors her own progress toward the goal of 1350 to 1500 milligrams of calcium per day. A similar method allows simple self-monitoring of weight-bearing activity. The intervention program is reinforced via monthly self-monitoring for 18 months. The education-only program consists of six generic sessions on healthy eating, physical fitness, and healthy lifestyle choices.

The primary outcomes of interest are higher calcium intake and higher levels of weight-bearing exercise. A secondary outcome of interest is increased broadband ultrasound attenuation of the os calcis, assessed using quantitative ultrasound. In summary, the group of girls targeted is ideal for this intervention because they are at a stage of rapid accrual of bone mass.

Study Type : Interventional  (Clinical Trial)
Enrollment : 340 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single
Primary Purpose: Prevention
Official Title: Osteoporosis Prevention in Preadolescent Girls
Study Start Date : July 1998
Study Completion Date : June 2002

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Osteoporosis

Information from the National Library of Medicine

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Ages Eligible for Study:   9 Years to 13 Years   (Child)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • 9- and 10-year-old premenarchal girls (girls who have not started their periods).

Exclusion Criteria:

  • Comorbid conditions or medications that are associated with decreased bone density such as the following: corticosteroids; anticonvulsants; thiazide diuretics; history of cancer; Type I diabetes; thyrotoxicosis; hyperparathyroidism; Cushing's syndrome; juvenile rheumatoid arthritis; connective tissue disease or hemolytic anemia; asthma which may limit ability to participate in the exercise intervention; known history of dietary disorder, including anorexia, bulimia or lactose intolerance; postmenarchal.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00000413

United States, Ohio
University Hospitals of Cleveland
Cleveland, Ohio, United States, 44106
Sponsors and Collaborators
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Principal Investigator: C. Kent Kwoh, MD Case Western Reserve Univ. and Univ. Pittsburgh

Publications: Identifier: NCT00000413     History of Changes
Other Study ID Numbers: P60AR020618 ( U.S. NIH Grant/Contract )
First Posted: November 4, 1999    Key Record Dates
Last Update Posted: December 29, 2006
Last Verified: February 2003

Keywords provided by National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS):
Osteoporosis prevention
Behavioral/educational intervention
Peak bone mass
Bone density

Additional relevant MeSH terms:
Bone Diseases, Metabolic
Bone Diseases
Musculoskeletal Diseases
Metabolic Diseases