近年来，田径运动已越来越受社会各方面的重视和关注．世界各国已把田径运动水平作为衡量一个国家体育发展水平的重要标志．1968年在墨西哥举行的第19届奥运会田径比赛中创造了几项水平很高的世界记录，当时，某些体育记者和生理学者们曾断言，这是21世纪的记录，是人体运动的? In recent years, track and field has been paid more and more attention and attention by all sectors of society. All countries in the world have regarded the level of track and field as an important indicator of a country’s level of sports development. Several high-profile world records were created in the 1968 Olympic track and field competition in Mexico in 1968, when some sports journalists and physiologists had asserted that this was a 21st-century record of human movement?