7WEICKER H, WERLE E. Interaction between hormones and the immune system[J]. Sports Med, 1991, ( 12 ) : 30-37.
8HELGERUD J. Aerobice Endurance Training Improves Soccer Performance [J]. Med Sci Sport Exe, 2001,33 (11 ) : 1925-1931.
9Hargreaves M ,et al. Muscle metabolites and performance during high-intensity, intermittent exercise [J].Appl Physiol, 1998,84(5)11687-1691.
10Trump M E and Heigenhauser G J,et al. Importance of muscle phosphocreatine during intermittent maximal cycling [J]. Appl Physiol,1996,80(5) :1574-1580.