Physical education and student activity: evaluating implementation of a new policy in Los Angeles public schools.

BACKGROUND California law has standards for physical education (PE) instruction in K-12 public schools; audits found that the Los Angeles Unified School District did not enforce the standards. In 2009, the district adopted a PE policy to comply with these standards. PURPOSE This study aimed to evaluate the outcomes of the PE policy in district schools. METHODS PE class observations were conducted using the System for Observing Fitness Instruction Time in the 2010-2011 and 2011-2012 school years in an income-stratified random sample of 34 elementary, middle, and high schools to assess changes in PE class size, class duration, and time students spent in moderate to vigorous physical activity. RESULTS PE class duration increased in high-income elementary schools. Mean class size decreased in low-income middle schools. CONCLUSIONS There was limited implementation of the PE policy 2 years after passage. Opportunities exist to continue monitoring and improving PE quantity and quality.