Running calf tightness and soreness may be due to physiological reasons or pathological reasons, such as warm-up exercise is not good, lack of exercise and calcium deficiency, etc., can be relieved by massage relaxation, towel hot compresses, rest, calcium supplementation and other ways. 1. Physiological reasons (1) Warm-up exercise is not done: warm-up exercise before running is not done, resulting in a kind of calf muscle is in a tense state, thus appearing the performance of running calf tightness and soreness, can be relieved by appropriate massage. (2) lack of exercise: due to a long period of time without exercise, resulting in the accumulation of excessive lactic acid after a sudden run, lactic acid stimulation caused by the phenomenon of tightness and soreness of the calves, can be relieved through the towel hot compresses, rest and other ways to relieve. 2. Pathological reasons: may be due to a lack of calcium leads to increased muscle excitability, caused by calf muscle spasm, thus appearing running calf tightness and soreness of the symptoms, you can follow the doctor’s advice appropriate calcium supplement. Running calf tightness and soreness may also be muscle strain, it is recommended to go to the regular hospital in a timely manner, consult a professional doctor, cooperate with the doctor to complete the relevant examination, to avoid blind treatment. The medication should be used reasonably under the guidance of the doctor.