Utilization of relaxation running theory and its training in sprint;

By making a research on sprints running skills,the author has the conception of relaxation running skills and rdises the question that the sprinters should pay attention to when they make training of relaxation running skills.

This paper discusses the relaxation running techniques of the dash and makes a correct recognition of them, meanwhile, it probes into the function it exerts on improving the records of the dash.

Relation between decrease blood lactic acid density and recovery of race intensity is being discussed.

Study on decisive factors of a dasher s speed;

The somatotype analysis on male adolescent dash players in Gansu Province;

On"hip moving"skill in dash;