Abstract
BackgroundThere is accumulating evidence that greater availability of green space in a neighbourhood is associated with health benefits for the local population. One mechanism proposed for this association is that green space provides a venue for, and therefore encourages, physical activity. It has also been suggested that socio-economic health inequalities may be narrower in greener areas because of the equalised opportunity for physical activity green spaces provide. However, research exploring associations between the availability of green space and physical activity has produced mixed results. Limits to the assessment of the type and amount of physical activity which occurs specifically in green space may account for these mixed findings. This observational study was therefore concerned with the extent to which green space is a venue for physical activity and whether this could account for narrower socio-economic health inequalities in greener neighbourhoods.MethodSecondary analysis of cross sectional data on 3679 adults (16+) living in urban areas across Scotland matched with a neighbourhood level measure of green space availability. Associations between green space availability and both total physical activity, and activity specifically within green space, were explored using logistic regression models. Interactions between socio-economic position and physical activity were assessed. All models adjusted for age, sex and household income.ResultsThe availability of green space in a neighbourhood was not associated with total physical activity or that specifically in green space. There was no evidence that income-related inequalities in physical activity within green space were narrower in greener areas of Scotland.ConclusionPhysical activity may not be the main mechanism explaining the association between green space and health in Scotland. The direct effect of perceiving a natural environment on physiological and psychological health may offer an alternative explanation.
Highlights
There is accumulating evidence that greater availability of green space in a neighbourhood is associated with health benefits for the local population
There was no evidence that income-related inequalities in physical activity within green space were narrower in greener areas of Scotland
Our research questions were (a) is availability of neighbourhood green space positively associated with physical activity and with physical activity in green space, and (b) is the association between socio-economic position and participating in physical activity within green space narrower among people living in greener areas compared to less green areas?
Summary
There is accumulating evidence that greater availability of green space in a neighbourhood is associated with health benefits for the local population. There is accumulating evidence that greater availability of green space in an urban neighbourhood is associated with health benefits for the local population [1,2,3,4,5,6,7]. A recent systematic review identified 50 studies which explored whether the availability of green space affects physical activity levels of the local population [15]. Of these studies, only 40% reported a positive association. In the Netherlands Maas et al [19] found no association between the percentage of green space in the neighbourhood and meeting the recommended physical activity guidelines
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