Effects on active citizenship and crime discount do lack a powerful proof base and are primarily supported by reports and qualitative evaluations from the sector. Due to the broad research scale and the heterogeneity of the analysis group, the research design had to cope with some methodological limitations and cannot present the detail of a more focused analysis. The review included international in addition to national databases and translated the search string in seven completely different languages. Therefore, the central high quality controlling might only be conducted for the inclusion of studies. The exclusion standards could not be controlled by the project leaders. While out of doors sports activities are often considered as synonymous with a better danger of accidents and circumstances of death, this might not be confirmed by way of this analysis .