How Much Neighborhood Parks Contribute to Local Residents' Physical Activity in the City of Los Angeles

A Meta-Analysis

Published in: Preventive Medicine, v. 69S, Dec 2014, p. S106-S110

Posted on on January 01, 2014

by Bing Han, Deborah A. Cohen, Kathryn Pitkin Derose, Terry Marsh, Stephanie Williamson, Laura Raaen

Read More

Access further information on this document at Preventive Medicine

This article was published outside of RAND. The full text of the article can be found at the link above.

OBJECTIVE: To quantify the contribution of neighborhood parks to population-level, moderate-to-vigorous physical activity (MVPA). METHOD: We studied park use in 83 neighborhood parks in Los Angeles between 2003 and 2014 using systematic observation and surveys of park users and local residents. We observed park use at least 3–4 times per day over 4–7 clement days. We conducted a meta-analysis to estimate total, age group and gender-specific park use and total MVPA time in parks. RESULTS: An average park measuring 10 acres and with 40,000 local residents in a one-mile radius accrued 5301 h of use (SE = 1083) during one week, with 35% (1850 h) spent in MVPA and 12% (635 h) spent in vigorous physical activity (VPA). As much as a 10.7-fold difference in weekly MVPA hours was estimated across study parks. Parks' main contribution to population-level MVPA is for males, teenagers, and residents living within a half mile. CONCLUSION: Neighborhood parks contribute substantially to population MVPA. The contribution may depend less on size and facilities than on "demand goods" – programming and activities--that draw users to a park.

This report is part of the RAND Corporation External publication series. Many RAND studies are published in peer-reviewed scholarly journals, as chapters in commercial books, or as documents published by other organizations.

The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.