Preventing Osteoporosis in Adolescent Girls

June 23, 2005 updated by: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Prevention of Osteoporosis Among Sedentary Adolescent Females

Physical activity in adolescents is an important part of bone health. Good bone health in adolescents can decrease the risk of osteoporosis. This study will evaluate a program designed to increase the level of physical activity in adolescent girls.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Despite the documented health benefits of increased physical activity, there is limited research on behavioral programs designed to increase exercise in adolescents. Psychosocial characteristics, such as self-efficacy for exercise, social support for exercise from family and peers, and perceived benefits of and barriers to exercise, may predispose adolescents toward the adoption and maintenance of physical activity. This study will implement a multifaceted behavioral program specifically designed to increase bone strengthening physical activity by addressing many of the psychosocial factors relating to exercise.

Girls in this study will be enrolled in Project Fitness and Bone (FAB). The Project FAB intervention is delivered during a regular school class period 5 days per week for 10 months. One day per week is devoted to didactic presentations and/or discussion about reasons for being active, ways of overcoming barriers to being active, and strategies for maintaining an active lifestyle. The remaining four days are structured activity sessions, including a range of activities such as modified basketball, aerobic dance, and walking around a track. Primary outcome measures will include bone mass (measured via dual-energy x-ray absorptiometer [DEXA]) and serum and urinary measures of bone formation and resorption. Participants will be contacted by telephone 12 months after their final clinic visit to ascertain their activity level at that time.

Study Type

Interventional

Enrollment

250

Phase

  • Phase 1

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

  • United States
    • California
      • Irvine, California, United States, 92697
        • Recruiting
        • University of California at Irvine
        • Contact:

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

13 years to 17 years (Child)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria

  • Entering the 10th or 11th grade
  • Participating in fewer then three vigorous activity sessions per week lasting 20 minutes or more or fewer than five moderate activity sessions per week lasting 30 minutes or more
  • At or below the 75 percentile for age- and gender-specific cardiovascular fitness
  • Past the age of first menstrual cycle

Exclusion Criteria

  • Health problems that would preclude participation in regular exercise

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: Prevention
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Collaborators and Investigators

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

Sponsor

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Investigators

  • Principal Investigator: Margaret S. Jamner, PhD, University of California at Irvine

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

July 1, 2000

Study Registration Dates

First Submitted

September 16, 2003

First Submitted That Met QC Criteria

September 16, 2003

First Posted (Estimate)

September 17, 2003

Study Record Updates

Last Update Posted (Estimate)

June 24, 2005

Last Update Submitted That Met QC Criteria

June 23, 2005

Last Verified

June 1, 2003

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • R01HD037746 (U.S. NIH Grant/Contract)

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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