As new physical activity recommendations and guidelines have spread globally since 1996, scrutiny of the evolution of national physical activity recommendations and guidelines for application to the Korean medical field iare needed. Retrieving literatures and electric database confined to aerobic activity of adult. Most findings were based on the results of epidemiological and behavioral studies of physical activity and health. Most national physical activity recommendations and guidelines have a 'physical activity for health' paradigm instead of an 'exercise for fitness' paradigm. Most stressed the health benefits of accumulation of moderate intensity of a wide variety of physical activity and the importance of the total amount rather than the specific frequency, intensity, time, or type of physical activity. Some used scientific health behavior theories. Research-based applications of evidence based physical activity policy to Korean medical practice are suggested. Korean medical field could have initiatives in comprehensive physical activity policy in Korean health promotion if actively adopting the new physical activity for health paradigm.