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Home > "A" Clinical Trials Conditions > A School-Based Osteoporosis Prevention Program for Adolescent Girls  A School-Based Osteoporosis Prevention Program for Adolescent Girls
A School-Based Osteoporosis Prevention Program for Adolescent Girls
For Condition: Osteoporosis
Status: Completed
Sponsor(s): National Institute of Child Health and Human Development (NICHD) ,
Synopsis: The Incorporating More Physical Activity and Calcium in Teens (IMPACT) study was a behaviorally-based middle school nutrition and physical activity program for the prevention of osteoporosis. The goal of IMPACT was to increase calcium intake and physical activity to help build bone mass in girls.
Details: Peak bone mass is achieved during the first twenty years of life, and dietary and activity patterns that contribute to the formation of peak bone mass are developed during childhood. The IMPACT intervention was designed to increase bone density and ultimately prevent osteoporosis during adulthood. IMPACT included physical education, food service, and classroom environmental and behavioral components and was delivered by physical education (PE) specialists, food service personnel, and classroom teachers. A group of 718 sixth grade girls (mean age 11.1) from twelve middle schools in central Texas participated in the study. The group was 72% non-Hispanic white, 12% Hispanic, 5% African American, and 11% other ethnicity. After baseline measurements were completed in the fall of 2000, the twelve middle schools were pair-matched based on school characteristics (ethnicity, % economically disadvantaged, % girls in athletics) to a control (usual health education program) or the IMPACT program. The intervention was implemented for 18 months and consisted of three major components: a PE component, which emphasized daily weight-bearing activities (WBA); a health lessons component consisting of sixteen behaviorally-based lessons which emphasized WBA, calcium-rich foods, and osteoporosis prevention; and a food service component. Outcome measures included physical properties of the students' heel bones, calcium consumption, physical activity, and psychosocial factors believed to be precursors to these behaviors. Changes at the school environmental level, such as the number of calcium rich foods offered in the cafeteria and the number of opportunities offered for weight-bearing and aerobic activity, were also assessed.
Eligibility:
Study Type: Interventional, Prevention, Randomized, Open Label, Active Control, Parallel Assignment, Efficacy Study
Minimum Age/Maximum Age: 10 Years/13 Years
Genders: Female
Protocol Entry Criteria: Inclusion Criteria - Girls enrolled in 6th grade of selected schools - Student assent - Parental consent - No fractures or medications that compromise bone health or strength - Enrolled in 2 semesters of physical education
Total Enrollment: 718
Location and Contact Information:
Overall Study Official:
DeannaHoelscher, Principal Investigator, University of Texas-Houston School of Public Health
Additional Information:
Study ID Numbers: R01HD37767;
Study Start Date: September 2000
Record last reviewed: August 2003
Additional information available at: clinicaltrials.gov
Clinicaltrials.gov Reference link: NCT00067925
Other Osteoporosis Studies:
1. Building Better Bones in Children
2. Once Weekly Parathyroid Hormone for Osteoporosis
3. Randomized Study of Alendronate in Adult Patients With Cystic Fibrosis Related Osteoporosis
4. Vitamin K and Bone Turnover in Postmenopausal Women
5. Bone Estrogen Strength Training
Related Studies:
Other Osteoporosis Clinical Trials
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A School-Based Osteoporosis Prevention Program for Adolescent Girls
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