110m Hurdles phased performance significance research based on SPSS regression analysis and GRA model

In 21 st century, Chinese men 110m hurdle suddenly raised aand research on hurdle performance and techniques have already become a hot topic. Carry oresearching on 4 factors significance that affec ts hurdle performance, utilizes multiple linear regression, a nalyzes Liu Xiang 110m hurdle total performance sig nificance in stages from start to first hurdle, hurdle step soar ing, three-pace running, the last exertion, then ap plies SPSS software in implementing unknown parameters estimat ion and significance testing. To define 4 factors c orrelations with total performance, establishes grey relational degree model, gets that techniques in last exertio n, from start to first hurdle are Liu Xiang strong points, and techn iques in three-pace run, hurdle step soaring are hi s weak points.