Walking every day is good for the body, but ten kilometers of exercise is relatively large, and you need to pay attention to the protection of the knee joints. Walking is an aerobic exercise, which can improve the body’s metabolic capacity, increase blood circulation, strengthen the cardiopulmonary function, and can effectively avoid the occurrence of some diseases. At the same time, walking can strengthen the abdominal movement, effectively improve the function of the gastrointestinal tract, can relieve constipation to a certain extent. It can also exercise the leg muscles. However, long-term hiking may cause wear and tear of the knee joints, as well as meniscus damage, and then form joint swelling and pain and arthritis. When walking, you should pay attention to the protection of the knee joints, you can wear knee pads to protect. Walking is good for the body, but excessive and long-term exercise can cause some adverse consequences, so pay attention to the intensity and time of exercise.