ISSN: 2320-5407 Int. J. Adv. Res. 4(12), 2315-2321 2315 Journal Homepage: - www.journalijar.com Article DOI:10.21474/IJAR01/2652 DOI URL: http://dx.doi.org/10.21474/IJAR01/2652 RESEARCH ARTICLE EVALUATION OF STATIC AND DYNAMIC BALANCE IN PATIENTS WITH DIABETIC PERIPHERAL POLYNEUROPATHY: ORIGINAL RESEARCH ARTICLE. Amir Abdel-Raouf El-Fiky 1 , Ashraf Abdelaal Mohamed Abdelaal *2 and Omar Farouk Helal 3 . 1. Lecturer in Physical Therapy, Department of Physical Therapy for Neuromuscular Disorders and its Surgeries, Faculty of Physical Therapy, Cairo University, Egypt. 2. Lecturer in Physical Therapy, Department of Physical Therapy for Cardiovascular/ Respiratory Disorder & Geriatrics, Faculty of Physical Therapy, Cairo University, Egypt. 3. Assistant Professor in Physical Therapy Department, College of Applied Medical Sciences, Umm Al Qura University, KSA. …………………………………………………………………………………………………….... Manuscript Info Abstract ……………………. ……………………………………………………………… Manuscript History Received: 30 October 2016 Final Accepted: 29 November 2016 Published: December 2016 Key words:- Diabetes-Polyneuropathy-Postural instability-balance. The Purpose of this study was to evaluate postural stability in patients with DM. Methods: Twenty-Three participants were assigned as a study group (G DM ; n= 23), another age-matched Twenty-Three healthy participants were assigned as a control group (G H ; n= 23). Evaluation procedure ran through Balance Error Scoring System (BESS), Timed Up and Go (TUG), Postural Stability Test and Limit of stability Test (LOS) on Biodex stability system. Results: revealed highly statistical significant difference in the mean values of the BESS test (p= 0.003), the LOS test (p= 0.04), and overall stability indexes on Biodex stability system (p= 0.006), high significant positive correlation between BESS and the postural stability test overall scores within (G DM ) (Pearson’s Correlation Coefficients (r)= 0.45), and high significant negative correlation between the TUG test and the LOS test overall scores within (G DM ) (r= -0.14), however; the comparisons between (G DM ) and (G H ) showed non-statistical significant difference in the mean values of the TUG test (p= 0.65). Conclusion: it can be concluded that diabetes affects postural stability during normal functional activity. Copy Right, IJAR, 2016,. All rights reserved. …………………………………………………………………………………………………….... Introduction:- Diabetes mellitus (DM) is a complex and complicated disease that has many complications like heart disease, stroke, hypertension, blindness, eye problems, kidney disease and nervous system disease. [1] Approximately 60% to 70% of people with DM have mild to severe forms of nervous system affection. Nearly half patients with DM have one type or combination of motor, sensory, or autonomic neuropathy that tend to clearly appear many years after diagnosis of DM, [2] especially in elderly patients. [3] Diabetic peripheral neuropathy (DPN) significantly contributes to disturbed balance during daily activities through impairing feet sensation. [4] DPN contributes significantly in falling among elderly patients. [5] People with DPN often experience balance disorder [6] and abnormally increased postural sway, especially with the eyes closed. [7] Balance is the process of maintaining the center of gravity within the subject's limits of stability and influenced by the base of support. [8] Several organs including cerebellum, skeletal muscles and the vestibular system are in Corresponding Author:-Ashraf Abdelaal Mohamed Abdelaal. Address:-Lecturer Physical Therapy, Department of Physical Therapy for Cardiovascular/ Respiratory Disorder and Geriatrics, Faculty of Physical Therapy, Cairo University, Egypt.