Circulation 128 (8): 873 - 934, 2013. doi: 10.1161/CIR.0b013e31829b5b44 Exercise program A comprehensive exercise program should include Aerobic activity Strength training Flexibility and balance training Variation (regular change in exercise to avoid overadaptation to the same stimulus, but also to avoid minor injuries due to repetitive actions) Often a single program can be designed to achieve all exercise goals.