According to the students' total academic year scores, the scores are: above 90.0 for excellent, 80.0 ~ 89.9 for good, 60.0 ~ 79.9 for passing, and below 59.9 for failing. 800 meters belongs to track and field middle and long distance running, which requires the combination of speed and endurance. Endurance and speed cannot be improved in a short time.
100 -3' 18 "
90 minutes -3 feet 28 inches
80 minutes -3 feet 42 inches
70 minutes -4 feet 07 inches
60 minutes -4 feet 32 inches
Extended data
Adjust the running rhythm reasonably. Generally, you run two or three steps to exhale and two or three steps to inhale. With the acceleration of running speed and the appearance of fatigue, the frequency of breathing also increases, so you can use the method of exhaling step by step while running.
Exhale should have a certain depth, accounting for about one-third of vital capacity, with the emphasis on exhalation. Only by fully exhaling carbon dioxide can we fully inhale oxygen. Breathing is usually carried out with the nose and the half-open mouth at the same time. When practicing long-distance running or running against the wind in winter, in order to avoid cold air and strong airflow directly irritating the throat, the tip of the tongue should be upturned and slightly licked on the palate.
Baidu Encyclopedia-National Physical Health Standard for Students