2Petruzzello S J.Ameta. Analysis on the anxiety reducing effects of acute and chronic exercise:Outcomes and mechanisms[J].Sports Medicine,1991,(14):8-10.
3R yan A J. Exercise is medicine[J].The Psysician and Sport Medicine,1983,(10):11.
4North T C,McCullagh P,Tran Z V. Effect of exercise on depression[J].EXERCISE AND SPORT SCIENCES REVIEWS,1990,(18):379-415.