Physical activity and nutrition intervention in Osteoporosis - Clinical Trials Registry

Study Overview

Status

Completed

Conditions

Osteoporosis

Intervention / Treatment

Behavioral: Physical activity and nutrition intervention

Detailed Description

In recent years, osteoporosis has become a major public health problem in the United States. Osteoporosis can best be prevented by optimizing bone mineral gain and reducing bone loss. Because the rate of bone development reaches its peak during adolescence, fostering bone health in childhood is of critical importance. Although there have been many studies of exercise and nutritional factors that influence bone mass in adults, few randomized, prospective studies have been conducted in children. This study will determine whether parent training is effective in increasing children's calcium intake, strength, and frequency of aerobic exercise.

Families will be randomly assigned to either the physical activity and nutrition intervention group or to the injury prevention control group. Families in both groups will undergo training during 9 weekly classes. The intervention training will emphasize health topics, principles of behavior, and contingency management techniques. Post-training coaching procedures will be provided periodically for 9 months. Coaching procedures will assist parents with problem solving and help them refine and maintain parenting skills. All families will be assessed prior to training and at Months 3, 9, and 12. Outcome measures will include 24-hour recall estimates of change in diet and change in physical activity. Total bone calcium, bone density, body composition, and skeletal age will also be assessed.

Study Type

Interventional

Enrollment (Actual)

155

Phase

Phase 2

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
  - San Diego, California, United States, 92123
    - The Center for Behavioral Epidemiology and Community Health at the Graduate School of Public Health at San Diego State University

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

10 years to 12 years (Child)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria

Participates in organized sports less than 3 days a week and less than 9 months per year
Parent willing to attend weekly training sessions

Exclusion Criteria

Serious medical illness
Spends less than 4 days a week with the parent willing to attend classes
Body mass index > 32

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: Randomized
Interventional Model: Parallel Assignment
Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
DXA - at baseline and 9 months
Nutrient Intake Interview - at baseline, 3, 9 and 12 months
Physical Activity Recall - at baseline, 3, 9 and 12 months
Strength/Fitness measures - at baseline, 3, 9 and 12 months

Collaborators and Investigators

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

Sponsor

San Diego State University

Investigators

Principal Investigator: Melbourne F. Hovell, Ph.D., MPH, San Diego State University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Schmitz KE, Hovell MF, Nichols JF, Irvin VL, Keating K, Simon GM, Gehrman C, Jones KL. Validation study of adolescents' puberty self-assessments. Journal of Early Adolescence 2004; 24(4): 357-384.
Nichols JF, Irvin V, Schmitz KE, Hovell MF. Body Composition and Fat Distribution in Non-Hispanic White and Hispanic Pre-Adolescents. Int J of Body Comp Res 6(1):9-16, 2008.
Hovell MF, Nichols JF, Irvin VL, Schmitz KE, Rock CL, Hofstetter CR, Keating K, Stark LJ. Parent/Child training to increase preteens' calcium, physical activity, and bone density: a controlled trial. Am J Health Promot. 2009 Nov-Dec;24(2):118-28. doi: 10.4278/ajhp.08021111.

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

April 1, 2000

Primary Completion (Actual)

February 1, 2004

Study Completion (Actual)

February 1, 2004

Study Registration Dates

First Submitted

June 19, 2003

First Submitted That Met QC Criteria