Slow walking can play a role in exercise. Slow walking belongs to a kind of aerobic exercise, but also the simplest exercise method, especially suitable for the elderly and the weak. Slow walking has many benefits for the body, can exercise leg muscles, improve immunity, can improve the heart contraction ability, heart load, increase lung capacity, to enhance cardiopulmonary function has a certain role, but also help to promote the metabolism, blood circulation, reduce cardiovascular disease as well as for the promotion of the body’s toxic emissions is also a certain benefit. However, if the existence of the knee, ankle acute and chronic injuries, it is not recommended to walk for a long time, so as not to aggravate the condition, and walking for a long time for the elderly knee joints have a certain degree of harm, especially osteoarthritis patients damage is relatively large, so you need to pay attention to the time of slow walking, should not be too long, do not be too tired, pay attention to the combination of work and rest.