The fascia is divided into superficial fascia and deep fascia. The fat layer between superficial fascia and skin is vertically aligned, and the two are not easy to produce sliding and can be considered as a whole.
The fat layer between the superficial fascia and the deep fascia is diagonally arranged, and the two are prone to sliding; the deep fascia is closely connected to the muscle and can be considered as a whole.
When the PH value in the body decreases after exercise, it will make the hyaluronic acid in its fascia become solid, which will affect the sliding between the deep fascia and the superficial fascia and make adhesions in that area.
During exercise, the skin does not follow the muscles and if the superficial and deep fascia become integrated by adhesions, the skin will move along with the muscles during exercise and thus the brain will receive disordered signals, which in turn will send warning messages to cause discomfort in the area and affect the flexibility of the area.
Over time, this will cause a decrease in joint mobility, which will affect their sports performance and increase their risk of sports injury.