1. Young People and Physical Activity;Armstrong,1997
2. How active are rural children in Australian physical education?;Barnett;J. Sci. Med. Sport,2002
3. Canada's Report Card on Physical Activity for Children and Youth, 2006. Retrieved July 29, 2006 from http://www.activehealthykids.ca/programs_2006reportcard.cfm.
4. Research on physical activity and health among people with disabilities: a consensus statement;Cooper;J. Rehabil. Res. Dev.,1999
5. Physical Activity Guidelines for Children: A Statement of Guidelines;Council for Physical Education for Children,1998