When you run for a long time, the lower compartment of your calf will be heavily congested with blood, causing swelling and cutting off blood circulation to the nerves in your feet. These nerve injuries can make your feet feel numb and inflexible. , like you are shuffling, not like running.
The symptoms usually disappear on their own within an hour after you stop running, but they will happen again when you continue to exercise.
Injuries after running:
Muscle soreness
Calf muscle soreness is a normal physiological phenomenon during exercise. When muscles contract to produce energy, something happens in the muscles. A series of changes, adenosine triphosphate, creatine phosphate, and glycogen break down and release energy. If the intensity is too high, blood circulation cannot keep up, oxygen supply is insufficient, and lactic acid accumulates, which stimulates the nervous system and causes pain.
Treatment: Hot water for feet, massage, and leg washing.
Muscle spasm
Commonly known as leg cramp, it is a phenomenon of tonic muscle contraction that cannot be relieved and relaxed. It often occurs in winter, when the weather is cold, no preparatory activities are carried out or the calf muscles are stimulated by cold, which can cause muscle soreness.
Treatment: Warmth, traction, massage.
Extended information:
The definition of running refers to the use of feet by terrestrial animals to move. Its definition of movement is a pace in which both feet do not hit the ground at the same time. It can also be an aerobic exercise or an anaerobic exercise.
Reference materials:
Baidu Encyclopedia-Running