Is the relationship between the built environment and physical activity moderated by perceptions of crime and safety?

Nicole L Bracy, Rachel A Millstein, Jordan A Carlson, Terry L Conway, James F Sallis, Brian E Saelens, Jacqueline Kerr, Kelli L Cain, Lawrence D Frank, Abby C King
International Journal of Behavioral Nutrition and Physical Activity 2014, 11:24 (24 February 2014)