The 800-meter run should be carried out according to the breathing method of middle and long-distance running, that is, the three-step breathing method (nose and mouth breathing at the same time). The so-called three-step breathing method is to run three steps to inhale and then three steps to exhale (that is, three steps to inhale and three steps to exhale). I don't know if I understand. Inhale deeply and exhale fully, so as to ensure oxygen intake. The so-called nose-mouth breathing means that the mouth is slightly open and the nose is breathing at the same time (the mouth cannot be opened wide).
The actual combat tactics of 800 meters running are also very important. If you are not very strong in the competition, then I suggest you adopt the following running tactics. After the start, the speed will be faster, so as to seize the favorable position (like the first three, running in the inner lane), and then adjust the pace, follow the first few, and the distance should not be too far (not more than 5 meters behind). Adjust your pace according to the speed of the person in front of you, be careful not to. Run to about 600 meters and start to accelerate the sprint. This tactic not only saves physical strength, but also facilitates adjusting the speed according to the actual situation.
I really don't understand the so-called sore hands. It should be the wrong posture!