Increasing physical activity in under-resourced communities through school-based, joint-use agreements, Los Angeles County, 2010-2012.

Introduction: Few studies have examined how joint-use agreements between schools and communities affect use of school facilities after hours for physical activity in under-resourced communities. The objective of this study was to assess whether these agreements can increase community member use of these opened spaces outside of school hours.

Methods: Trained observers conducted school site observations after joint-use agreements were implemented in 7 Los Angeles County school districts.