This report defines exercise and physical activity, considering their impact on susceptibility to cardiovascular disease.It also examines the physiological effects of regular exercise,suggesting how exercise-induced changes might improve
cardiac performance. It discusses the influence of the type,intensity, frequency, duration, and volume of exercise and
their respective contributions to the development of a rational exercise prescription, commenting on problems of sustaining
compliance and the potential dangers of excessive exercise. A final section of the article suggests possible avenues for
future research.