The Characteristic Research Of Four World Elite Male Tennis Players' Footwork Application On Hard Court

To Roger Federer, Andy Murray, Novak Djokovic and Andy Roddic 4 world elite tennis players as research objects, by mesns of document resources method, expert investigation method, video observation and statistic method, words and letters marking method and logical analysis method to condoct a comprehensive analysis of foot works application, and give some recommendation.results are followed:First the frequency characteristics of four players various types of feetwork application:For the stoking footwok, step> transfer> power move> close pivot > spin> one foot pivot> hip step> two foot pivot and reverse spin. non-stoking footwork is slice footwork> volly footwork> lob footwork > smash footwok and drop shot footwork.Second the spatial characteristics of the four players:One foot pivot, two foot pivot and spin, the area of establishment of advantage is core application area. transfer is mainly used in left,middle left side of establishment advantage area which nearby the baseline, step down footwork is also used in establishment advantage area, all four parts of area is used by this footwork. hip step is mainly used in middle-left ande middle-right pressure area. reverse spin is used in back part of establishment advantage area and disadvantage area. Mogle is mainly used in left and right side of establishment advantage area of which nearby the sideline.close pivot is used in establishment advantage area and left part of the disadvantage area.volly and smash footwork is mainly in pressure area and scoring area.lob footwork is used in left and right of establishment advantage area and disadvantage area. Drop setp is used in establishment advantage area.Third foot work application and analysis of winning and losing point of the four players on different part of the match:In the stage of offensiv and defensive of serving, offensive and transition footwork are difference among four players, defensive footwork is no difference. The effciency winning point in offensive footwork and The effciency losing point of in transition footwork is different. In the stage of serve stalement, as the matching characteristics of four players, they showed signifant differences. but except the difference of effciency of losing point in defensive footwork, there are no difference among other footwork. Return of serve offensive and defensive phase, denfensive footwok is no defference, but offensive and transiton footwork difference are siggnificant. effciency of losing and winning point is also no difference. Return of serve stalement stage, the four players showed difference again. In the comparision of the rate of gain and lose point, the rate of gaining point in offensive footwork and losing point in transition footwork is still difference.