6Berger B G,Pargman D,Weinberg R S.Foundations of exer cise psychology[M].Morgantown,WV:Fitness InformationTechnology,2007:371.
7Marcus B H,Lewis B A,Williams D M,et al.A comparisonof Internet and print-based physical activity interventions[J].Archives of Internal Medicine 2007,167(9):944-949.
8Buck M M,Jable J T,Floyd P A.Introduction to physical edu cation and sport:foundations and trends[M].Belmont,CA:Wadsworth-Thomson Learning,2004.
9Motl R W,Dishman R K,Saunders R,et al.Measuring enjoy ment of physical activity in adolescent girls[J].American Jour nal of Preventive Medicine,2001,21(2):110-117.
10O’Connor M J.Exercise promotion in physical education:Ap plication of the transtheoretical model[J].Journal of Teachingin Physical Education,1994,14(1):2-12.