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Healthy Opportunities for Physical Activity and Nutrition (HOP'N) After-School Project (HOP'N)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified November 2009 by Kansas State University.
Recruitment status was:  Active, not recruiting
Iowa State University
Information provided by:
Kansas State University Identifier:
First received: November 17, 2009
Last updated: April 29, 2010
Last verified: November 2009
This study presents evaluates the effectiveness of the Healthy Opportunities for Physical Activity(HOP'N) After-School Program on preventing obesity in children. The investigators hypothesized that normal and overweight/obese children attending after-school sites randomized to the control condition will increase in weight status to a greater extent compared to children at sites randomized to receive the HOP'N program. The investigators also hypothesized that after-school intervention HOP'N sites will increase in physical activity and healthful eating opportunities compared to control sites.

Condition Intervention Phase
Obesity Prevention Behavioral: HOP'N After-school Program Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Healthy Opportunities for Physical Activity and Nutrition (HOP'N) After-School Project

Resource links provided by NLM:

Further study details as provided by Kansas State University:

Primary Outcome Measures:
  • Body Mass Index Z-Score [ Time Frame: Fall 2005, Spring 2006, Fall 2006, Spring 2007, Fall 2007, Spring 2008 ]

Secondary Outcome Measures:
  • physical activity [ Time Frame: Six times yearly ]

Enrollment: 273
Study Start Date: August 2005
Estimated Study Completion Date: May 2008
Estimated Primary Completion Date: May 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: HOP'N After-School Program
After-school program with daily physical activity following CATCH guidelines, daily fruit/vegetable snack, and weekly nutrition and physical activity education based on social cognitive theory.
Behavioral: HOP'N After-school Program
Daily 30 minutes of physical activity following CATCH guidelines, Daily healthful snack with fruit/vegetables, Weekly nutrition and physical activity education based on social cognitive theory.

Detailed Description:
The dramatic increase in the prevalence of overweight among children and adolescents has led to obesity prevention becoming a major national health priority. Although schools offer a logical choice for a setting to reach a great number of youth, these disappointing findings may be due in part to the difficulties of implementing interventions in school settings where competing demands for time have made it difficult to add anything other than academics to the school day. After-school programs may provide promise for preventing child obesity because there are fewer bureaucratic obstacles and curricular inflexibilities. A three-year group-randomized controlled trial will be conducted with random assignment at the school level . The study will use a nested cross section design with a baseline year, and two subsequent intervention years.

Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • after-school program participant in fourth grade group
  • informed parental consent
  • assent to participate in Body Mass Index assessment

Exclusion Criteria:

  • third or fourth grade student
  • participant in study in previous year
  Contacts and Locations
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Please refer to this study by its identifier: NCT01015599

United States, Kansas
Kansas State University
Manhattan, Kansas, United States, 66502
Sponsors and Collaborators
Kansas State University
Iowa State University
Principal Investigator: David A Dzewaltowski, Ph.D. Kansas State University
  More Information

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: David Dzewaltowski, Kansas State University Identifier: NCT01015599     History of Changes
Other Study ID Numbers: USDA no. 2005-35215-15418
Study First Received: November 17, 2009
Last Updated: April 29, 2010

Keywords provided by Kansas State University:
Obesity prevention
physical activity
children processed this record on August 17, 2017