The article covers the topic of whether or not there is a correlation with land use and obesity. To test this there was either a circle drawn around the house with a decided upon radius or there was a limit of number of blocks that equaled the same number. The land was then split up between different categories that would determine the ability to walk the area. The difference in landscapes can then develop patterns in which the people of study could move. A city with a lot of parks and a proximity to work would score a higher chance of walking to work and in some cases it would have low correlation with obesity. Certain things that could affect the probability of someone walking can be things like a nearby grocery store or places where social interaction are common. When a person is surrounded by only one type of land and is not within walking distance to other needs (food or work) they probably won't walk much.
In most cases if there was a diverse surrounding with different types of landscape it was more likely that walking would occur in those areas. When the people of the study were walking more frequently to nearby things instead of other means of transportation they tended to be on average less obese.