1. Knuttgen HG, Vogel JA, Poortmans J, eds. Biochemistry of exercise. Champaign, IL., USA: Human Kinetics Publishers; 1983:121–130.
2. Edwards RHT. Biochemical bases of fatigue in exercise performance: catastrophe theory of muscular fatigue. In: Knuttgen HG, Vogel JA, Poortmans J, eds. Biochemistry of exercise. Champaign, IL., USA: Human Kinetics Publishers; 1983:3–28.
3. Guo J. Overtraining of endurance athletes. J Beijing Teach Coll Phys Edu (Chin) 1994;6:99–104.
4. Pan TB. Physiological analysis of overtraining syndrome. Sports Sci Res (Chin) 1997;18:33–36.
5. Budgett R. Fatigue and underperformance in athletes: the overtraining syndrome. Br J Sports Med 1998;32:107–110.