1. American College of Sports Medicine (1986).Guidelines for Graded Exercise Testing and Exercise Prescription, 3rd ed. Lea & Febiger, Philadelphia.
2. Atkins, C. J., Patterson, T. L., Roppe, B. E.,et al. (1987). Recruitment issues, health habits, and the decision to participate in a health promotion program.Am. J. Prev. Med. 3: 87?94.
3. Bandura, A. (1977).Social Learning Theory, Prentice-Hall, Englewood Cliffs, NJ.
4. Baranowski, T., and Nader, P. R. (1985). Family involvement in health behavior change programs. In Turk, D. C., and Kerns, R. D. (eds.),Health, Illness, and Families, Wiley, New York, pp. 81?107.
5. Blair, S. N. (1984). How to assess exercise habits and physical fitness. In Matarazzo, J. D., Weiss, S. M., Herd, J. A., Miller, N. E. and Weiss, S. M. (eds.),Behavioral Health: A Handbook of Health Enhancement and Disease Prevention, Wiley, New York, pp. 424?447.