Measuring and Mapping Physical Activity Disparity (PAD) Index Based on Physical Activity Environment for Children

Physical activity (PA) plays a vital role in children’s physical and mental health. The built, natural, socio-demographic environmental variables affect PA behaviors various ways. However, few studies focus on systematically measuring the spatiality to enhance research. We propose Access Disparity (PAD) index for children. This study aims design, test, apply an integrated approach PAD index. adopt five dimensions of “access” healthcare measure United States (US) state Georgia at county level. sorts 18 measures with 23 into accessibility, availability, accommodation, affordability, acceptability (5 As) PA. use self-organizing map (SOM) method how 5 As values. According result, index’s ranking normalizes from 0 1 identifies “play oases” deserts” US using diverse combinations. shows Low disparity north coastal region High Deep South states US. Moreover, south Georgia. provides valuable tool researchers policymakers analyze environment. flexible parameters weighing scheme also extend method’s generality allow users customize based local preferences conditions.