Study on Out of School Nutrition and Physical Activity Environments (OSNAP)

This study has been completed.
Information provided by:
Harvard School of Public Health Identifier:
First received: January 27, 2011
Last updated: July 15, 2011
Last verified: July 2011

The purpose of this study is to design and conduct research to tailor out of school time evaluation materials so they are applicable to various settings in Boston, are efficient in that minimal resources and time are used, and are useful to participants.

Condition Intervention
Child Physical Activity
Child Nutrition
Behavioral: Policy and Environmental Change

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
Official Title: Study on Out of School Nutrition and Physical Activity Environments

Resource links provided by NLM:

Further study details as provided by Harvard School of Public Health:

Primary Outcome Measures:
  • Change in physical activity [ Time Frame: Participants' physical activity will be measure over the course of 5 consecutive school days pre-intervention and 5 consecutive school days post-intervention ] [ Designated as safety issue: No ]
    Accelerometer and SOPLAY observation

Secondary Outcome Measures:
  • Change in dietary intake [ Time Frame: Participants' dietary intake will be measure over the course of 5 consecutive school days pre-intervention and 5 consecutive school days post-intervention ] [ Designated as safety issue: No ]
    plate waste consumption

Enrollment: 590
Study Start Date: September 2010
Study Completion Date: June 2011
Primary Completion Date: June 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
No Intervention: control
Experimental: Policy and Environmental Change Behavioral: Policy and Environmental Change
Afterschool programs participate in an assessment of physical activity and nutrition practices and policies. Study staff work with teams of afterschool programs in a participatory manner to identify areas in which programs would like to take practice, policy and communication efforts to meet physical activity and nutrition goals. Teams share progress and barriers during ongoing collaborative meetings.

Detailed Description:

Nearly half of Boston's school age children (49%) participate in out of school time programs, a critical time to intervene on physical activity and nutrition. Previous research has mostly focused on during-school-day efforts, or on child care policies and practices for very young children, leaving a gap in the knowledge of what might work with programs serving school-age children during out of school time. OSNAP aims to implement low cost and sustainable policy and environmental interventions to improve physical activity and healthy eating/beverage environments. Data will be collected via observations, plate waste and accelerometers on program policies, environments, practices and behavioral outcomes related to physical activity, beverage, snack and screen time outcomes.


Ages Eligible for Study:   5 Years to 12 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Afterschool programs in Boston MA serving at least 40 children ages 5-12 years operating the full school year between September and June
  • Afterschool programs serving a snack to children
  • Children between the ages of 5 and 12 years
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01396473

United States, Massachusetts
Harvard Prevention Research Center
Boston, Massachusetts, United States, 02215
Sponsors and Collaborators
Harvard School of Public Health
Principal Investigator: Steven Gortmaker, PhD Harvard School of Public Health
  More Information

No publications provided by Harvard School of Public Health

Additional publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Steven Gortmaker/Professor of the Practice of Health Sociology, Department of Society, Human Development and Health; Harvard School of Public Helath Identifier: NCT01396473     History of Changes
Other Study ID Numbers: 18046, CDC Grant Number
Study First Received: January 27, 2011
Last Updated: July 15, 2011
Health Authority: United States: Institutional Review Board

Keywords provided by Harvard School of Public Health:
plate waste
environment processed this record on September 01, 2015