Second, the following four types of people should not go.
1, patients with Parkinson's disease, impaired cerebellar balance and cervical spondylotic myelopathy can never do such exercises because they can't control their own steps.
2. For patients with severe hip and knee joint diseases, due to the inflexibility of joints, uneven road surface will increase the load of joints and aggravate the damage of joints.
3. People who stay in bed for a long time or are fixed for a long time because of limb injuries may be in danger because of insufficient muscle strength of lower limbs.
4, due to the weakness of lower limb muscles caused by nervous system diseases, this kind of exercise should not be carried out.
Extended data
The main chemical composition is silicon dioxide, followed by a small amount of iron oxide and trace elements and compounds such as manganese, copper, aluminum and magnesium. They have different pigments, such as latosolic red iron, blue copper, purple manganese, yellow colloidal chalcedony, emerald green minerals and so on. Due to the different types and contents of these pigment ions dissolved in silica hydrothermal solution, they present a variety of colors, making pebbles appear black, white, yellow, red, dark green, cyan, gray and other color systems.
According to the Associated Press, cobblestone paths are better for your health and lower your blood pressure. According to the latest research results of Oregon Institute in the United States, people over 60 years old walk on the smooth cobblestone path for half an hour every day, and after four months of continuous walking, their hypertension will be significantly reduced, and their balance and coordination ability will be significantly improved.
(Refer to Baidu Encyclopedia Pebbles)