Bad heart function can be exercised through tai chi, swimming, jogging and walking, and the intensity of exercise should be chosen according to one’s own situation. 1. Taijiquan: the exercise intensity of taijiquan is not very high, which is more suitable for people with poor cardiac function. Through persistent exercise, it can improve body immunity and help enhance cardiac function. 2. Swimming: Swimming can make the whole body muscles get exercise, promote blood circulation, strengthen the cardiopulmonary function, the heart function is not good can also play a certain role in helping. Before going into the water, pay attention to the water temperature, not violently into the cool water, such as discomfort immediately ashore. 3. Jogging: jogging is a kind of aerobic exercise, can prevent the body bone stiffness, exercise respiratory function, long-term adherence to the cardiac function has improved. 4. Walking: Walking can promote gastrointestinal digestion, relaxation, enhance heart function, heart function is not good people can generally withstand this exercise. People with poor heart function are not recommended to carry out high-intensity exercise, should choose a slight, gentle exercise methods, step by step, not excessive exercise, so as not to bring damage to the body.