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The purpose of this study was to determined the effects of Static Stretching and Deep Transverse Friction Massage of Back Extensors in University Students. The study was conducted on forty-two healthy volunteers(male=21, female=21) who were randomly divided into three groups. All of group was rested for 10 minute before a performance. Group 1(n=14) rested as Control, Group 2(n=14) performed an Static Stretching, Group 3(n=14) performed an Deep Transverse Friction Massage received. Back Extensors Extensibility was measured immediately before and after application or rest by modified fingertip-to floor(MFTF) test. Back Extensors Extensibility significantly increased in Group 2(p<.05) and Group 3(p<.05). The Group 1 demonstrated no statistically significant changes in MFTF distance. In result of ANOVA of difference of MFTF between pre and post applied in 3 Groups, significant difference from Group 2 to Group 1(p<.05), and significant difference from Group 3 to Group 1 and no significant difference from Group 3 to Group 2. The result indicate that the Static Stretching and Deep Transverse Friction Massage application increase to Extensibility of Back Extensor Extensibility.