The 20-meter shuttle run pilot project is under way in the city's 18 schools, with about 5,000 students participating. The shuttle run involves running back and forth between two points 20 meters apart at increasing speeds."The long run failed to scientifically and objectively reflect a student's cardiopulmonary function and aerobic endurance," said Ji Liu, a professor from the school of sports and health at East China Normal University, who is also the leader of the pilot project. "The speed has less connection to their physical status," while cardiopulmonary function and aerobic endurance is an important indicator of a person's fitness, he said."The long-distance run is a combination of aerobic and anaerobic exercise, which cannot reflect students' aerobic endurance," Ji said.
The move in Shanghai follows the deaths of two college students in Guangdong province and one in Shanghai after long-distance runs in November. Several colleges and middle schools canceled long-run projects in their sports contests after the deaths.
在aerobic 里，aero-这个词根来源于希腊文，表示“空气”的意思。例如：飞机更为正式的表达是aeroplane，后来嫌长，就简称plane。而前面再加个an-这个同样源自希腊文表否定的前缀，anaerobic 意思就是“无氧”了。