fa آسیب شناسی ورزشی و حرکات اصلاحی Sport injury and corrective exercises پژوهشي Research Objective:. The aim of this study was to compare effectiveness of stabilization exercises with maximum Isometric exercises on fear avoidance belief ,Tampa scale Kinsiophobia , pain and disability in Chronic Non-Specific Neck Pain . Materials & Methods : In clinical trail study done on fifty patients with chronic neck pain were recruited. Subjects were randomly assigned to either a stabilization (n=25) or a maximum isometric exercise group (n=25). Before and after intervention ( 4,8,12 weeks) pain, disability, Tampa Scale Kinsiophobia , Fear Avoidance of Belief measured . A 48 session exercise program which 8 weeks . six session per week , and per session was performed for both groups. Repeated measurement of analysis variance , Independent t-test and paired t-test were used for comparison between pretreatment and post treatment test results between groups and within groups, respectively. Results : The mean neck pain decreased in the stabilization group and maximum isometric group (p=0/482) . The mean disability (NDI) decreased with significant difference in both groups (p<0/001 ) . The mean FABQ-W decreased with significant difference in both groups (P<0/001) but The mean FABQ-W decreased without significant difference in both groups (P=0/938 ) . The mean TSK decreased with significant difference in both groups (P<0/001). Conclusion : This study showed that neck specific stabilization exercises and maximum isometric exercises decrease pain , disability , fear of pain and fear of re-injury . Also specific stabilization exercises was more useful than maximum isometric procedure . Chronic Neck Pain, Stabilization exercises , Maximum isometric exercises , Fear Avoidance of Belief , Tampa Scale Kinsiophobia 16 23 http://ptj.uswr.ac.ir/browse.php?a_code=A-10-72-1&slc_lang=fa&sid=1 ahmad reza asgari ashtiani احمدرضا عسگری آشتیانی ahmad.asgari@modares.ac.ir No دانشگاه تربیت مدرس ismaeil ebrahimi اسماعیل ابراهیمی : ebrahimi.pt@gmail.com No دانشگاه علوم پزشکی زاهدان giti torkaman گیتی ترکمان :Torkamg@modares.ac.ir Yes دانشگاه تربیت مدرس mohsen amiri محسن امیری m.amiri2USWR.AC.IR No دانشگاه علوم بهزیستی i No