Park access affects physical activity: new evidence from geolocated Twitter data analysis

This study analysed the association between park access and physical activity in an urban context by extracting tweets from the social media platform Twitter. The results show that areas within a 0.5-mile distance to a park correlate with more physical activity than areas farther than that. Park type might be an essential mediator for the correlation between park size and physical activity. This study suggests that geolocated Twitter data are a viable source of information for researchers inquiring about factors related to urban open space that can contribute to public health.