Characteristics and development of the volleyball defense lineup that bases its core on the free man
By analyzing the statistics of the videos that show the effect of actual application of such a lineup in the contests performed by world winning volleyball teams,the author studied the characteristics of the volleyball de-fense lineup that bases its core on the free man,and revealed the following findings: The defense lineup that bases its core on the free man has changed former traditional play;the overall strength of defense of the entire team is greatly enhanced by replacing the secondary attacker with the free man to defend the No.5 position and to further expand the range of defense of the free man,which is conducive to reducing the backcourt defense pressure of the primary attacker at the same time,so that the primary attacker can be in an advantageous position for backcourt at-tack when defending;such a lineup provides more chances and possibilities for strengthening backcourt attack and increasing attack points on the court.