“…Many [ 30 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 ], but not all [ 31 , 41 , 42 ] studies, have found positive associations with BMI or obesity. For physical activity, prior studies have found mixed results [ 6 , 25 , 36 , 42 , 43 , 44 , 45 , 46 ]. For example a recent study among older adults in New York City that used Google Street View audits to ascertain neighborhood physical disorder found higher levels of disorder to be associated with lower physical activity at baseline, but not with changes in disorder over time [ 6 ].…”