4. American College of Sports Medicine. ACSM's resource manual for guidelines for exercise testing and prescription 1998;3rd ed. Philadelphia: Lippincott Williams & Wilkins. 570-577.
5. Buskirk ER. In: Skinner JS, editor. Obesity. Exercise testing and exercise prescription for special cases 1993;2nd ed. Philadelphia: Lea & Febiger. 185-210.
6. Elliot DL, Goldberg L. In: Goldberg L, Elliot DL, editor. Exercise and obesity. Exercise for prevention and treatment of illness 1994;1st ed. Philadelphia: F.A. Davis Co.. 211-227.
7. NIH-NHLBI. Clinical guidelines on the identification, evaluation and treatment of overweight and obesity in adults, Jun 1998.
8. WHO. Obesity: Preventing and managing the global epidemic-Report of a WHO Consultation on Obesity 1997;06.