7Sallis, J. F. Physical Education's Role in Public Health[J ]. Research Quarterly in Exercise and Sport, 1991(62):151 - 156
8Telama, R. Decline of Physical Activity from Youth to Young Adulthcod in Finland[J]. Medicine and Science in Sports and Exereise,2000, (32) :1 617-1 622
9Edmundson, E. W,. The Effects of The Child and Adolescent Trial for Cardiovascular Health upon Psychosomatic Determinants of Diet and Physical Activity Behavior[J]. Preventive Medidne, 1996(25) :442 - 454
