Physical Activity and Cardiovascular Disease: How Much Is Enough?

Physical inactivity is an established risk factor for cardiovascular diseases. However, while physical activity is recommended as a component of healthy lifestyle, the amount (intensity, duration and frequency) of physical activity required to protect against coronary heart disease (CHD) and cerebrovascular disease (i.e., stroke) is unclear. In general, there is a graded inverse association of physical activity with CHD and total cardiovascular...