BASSUK, S. S., and J. E. MANSON. Physical activity and cardiovascular disease prevention in women: How much is good enough? Exerc. Sport Sci. Rev., Vol. 31, No. 4, pp. 176–181, 2003. Epidemiologic data suggest that 30 min ·d−1of brisk walking can reduce cardiovascular disease incidence in women and men. In a sedentary society, public health initiatives that promote moderate increases in physical activity may represent the optimal balance between efficacy, feasibility, and safety to achieve the desired cardioprotective effect.