Study on the Tailored Intervention Strategy of Childhood Obesity Based on Monitoring Physical Activities and Dietary Behaviors


The project aims at developing the tailored intervention strategy of childhood obesity based on monitoring physical activities with accelerometer and dietary behaviors using diary. It probably raise the passion of obese children to control weight, form healthy life style, be effective in sustaining weight loss and early prevent adulthood diseases.

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Non-Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Prevention
    • Masking: Double (Participant, Outcomes Assessor)
  • Study Primary Completion Date: December 2011

Detailed Description

The overweight and obese primary school students from 1-5 grades will be recruited according to "Body Mass Index Reference for Screening Overweight and Obesity in Chinese School-age Children". The participants with will be allocated with schools as the unit to four groups: tailored intervention based on monitoring physical activity and dietary behaviors, exercise intervention group based on the Happy 10 program, nutrition education intervention group. The three intervention groups received the designed interventions for the duration of 1 year. Before and after the intervention, we will carry out a questionnaire survey, a physical measurement, a fitness test, and a metabolic markers detection


  • Behavioral: Monitoring and Tailored prescription
  • Behavioral: Happy 10 program
  • Behavioral: Specified nutrition education
  • Behavioral: General Health Education

Arms, Groups and Cohorts

  • Experimental: Tailored intervention group
    • For the monitoring session, physical activity was assessed by accelerometer and dietary was assessed by diary. Based on the monitoring information, the individual tailored prescription, including the normative feedback and process feedback, were formed and delivered to children and parents. Children were encouraged to modify the behaviors according to the prescription. Then, next monitoring circle was followed. In total, 7 monitoring round were completed.
  • Experimental: Happy 10 exercise group
    • All the schools participating in this group were encouraged to take two Happy 10 sessions on each school day.
  • Experimental: Nutrition education group
    • The nutrition intervention was mainly conducted based on the nutrition knowledge through health education lectures given by researchers. The lectures were given for eight times to students and twice to parents. Each lecture session lasted no less than 40 min.
  • No Intervention: Control group
    • Receive no intervention

Clinical Trial Outcome Measures

Primary Measures

  • Change in body mass index
    • Time Frame: Baseline, 1-year post-intervention

Secondary Measures

  • Change in obesity-related anthropometric measurements
    • Time Frame: Baseline, 1-year post-intervention
  • Change of blood pressure
    • Time Frame: Baseline, 1-year post-intervention
  • Change of biomarkers for disease risk
    • Time Frame: Baseline, 1-year post-intervention
  • Change of attitude, knowledge, and behaviors on dietary and physical activity
    • Time Frame: Baseline, 1-year post-intervention

Participating in This Clinical Trial

Inclusion Criteria

  • Overweight and obese children from grade 1-5 primary schools Exclusion Criteria:

  • Students with any contraindication or physical diseases (heart, Lung, liver, kidney, other vital organs, endocrine diseases and drug side effects et al.) and psychological illnesses that may prevent them from participating in physical activity and eating a normal diet were excluded

Gender Eligibility: All

Minimum Age: 7 Years

Maximum Age: 12 Years

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • Wang Jingjing
  • Provider of Information About this Clinical Study
    • Sponsor-Investigator: Wang Jingjing, Institute of Child and Adolescent Health – Peking University

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