1. ACSM's guidelines for exercise testing and prescription;American College of Sports Medicine,1993
2. An Introduction to Borg's RPE-scale;Borg,1985
3. Emotion and aerobic exercise;Boutcher,1993
4. Positive and negative affective response of trained and untrained subjects during and after aerobic exercise;Boutcher;Australian Journal of Psychology,1997
5. Physiology of exercise for physical education and athletics;DeVries,1966