(1.Department of Physical Education,Guangdong University of Technology,Guangzhou 510090,China;2.Department of Physical Education,Nanhua College of Industry and Commerce;Guangzhou 510507,China) Abstract: By introducing correlation functions and correlation degree used in extension sets, the authors did a qualitative and quantitative analysis and evaluation on the competitive condition of badminton players based on the magnitude of correlation degree, and finally carried out analytical verification by using living examples. The theo-retical analysis and experimental results are consistent, indicating that this method can diagnose the competitive condition of excellent badminton players in a quick and effective manner. Key words: sports training; badminton;competitive ability;matter-element model;extension method |