Research purposes :For our national echelon construction of table tennis, badminton tennis and helping researchers to establish a solid theoretical foundation, The author, through summarizing much specific physical constitution training relative imformation of racket-hold and net-separating antagonistic group , acquired theoretical basis and specific group training methods.

Trend of development of competition rules for racket games;

as a result of the analysis into the rules of net sport events at the different stages of their evolution,identified the regularity in their evolution and predict the development trend of them.

Applying computer and database techniques and following the practical requirement of net antagonistic event training,the database design of body function monitoring DBMS for net games is detailed forming four phases: demand analysis,concept framework design,logic framework design and physical framework design.