The association of natural elements and trail use by adults.

We used the System for Observing Play and Recreation in Communities to examine the association between variations in natural elements (ie, season, weather, and temperature) and adults' use of a rail-trail in South Carolina (2006-2009). Most (62%) of the 4,468 trail users observed were walkers; 38% were observed participating in vigorous physical activity. Adults were most often observed using the trail during the summer (32%), sunny weather (78%), and moderate temperatures (54%).

Psychosocial mediators of a faith-based physical activity intervention: implications and lessons learned from null findings.

Mediation analyses in faith-based physical activity (PA) interventions targeting African-American adults are lacking. The purpose of this study was to examine the psychosocial mediators of a faith-based PA intervention with African-American adults. Churches were randomly assigned to receive immediate or delayed (1-year later) training in PA program implementation.

Pedestrian activity among California adults.

Background: The objectives of this study were to assess (1) pedestrian activity levels among adults, (2) where and why adults engage in pedestrian activity, and (3) what adults consider when deciding where to engage in pedestrian activity.

Methods: Pedestrian activity was assessed in 12,036 California adults, >or=18 years, using a random digit-dial telephone survey.

Results: Significant differences were identified by race, sex, age, and physical activity level in the type, location, and purpose of pedestrian activities.