Because walking backwards is to achieve the purpose of fitness by consuming energy, especially by accelerating the heart rate, it is easy to increase the burden on the heart, and at the same time the reserve capacity of the cardiovascular system of the elderly is also reduced. Walking backwards or running backwards will overload the cardiovascular system. Especially the elderly with cardiovascular diseases, such as coronary heart disease, hyperlipidemia, arteriosclerosis and so on. When doing reverse exercise, there may be risks such as cerebral ischemia or myocardial ischemia, dizziness and falling.
Due to age, most elderly people suffer from some hyperosteogeny of cervical and lumbar vertebrae to varying degrees. When they walk backwards, they have to turn back or twist their waists from time to time. It is prone to carotid artery compression, lumen stenosis, decreased blood flow, decreased blood supply to the brain, and hypoxia. Even when it is serious, it will suddenly faint. Therefore, the elderly must be careful when doing this sport. People with heart, brain and vascular diseases cannot do this activity.
Accidents are easy to happen, because running backwards, you can't always see the direction of progress, and obstacles on the road can't be avoided in time, so accidents are easy to happen. Walking backwards is an abnormal exercise. Everything is upside down. Not used to it, it's easy to fall. Therefore, when walking backwards, the pace should be slow, and the heel should be slightly raised to avoid falling against pebbles and other things. Don't take too big a step and keep your body balanced. First of all, the speed must be slow, the steps should be small and the walking time should be short.