Background: Iliotibial band syndrome is frequently observed in healthy subjects with prolonged sitting (6 to 7 hours). Patients with the condition describe lateral knee pain brought on by activities. Diagnosis is primarily centered on a characteristic physical examination and history. ITBS occurs as a result of weak hip and gluteus muscles, loss of flexibility, excessive sitting, unbalanced leg lengths or any other inflammatory cause near lateral epicondyle. It can be primarily treated non-surgically; nevertheless, surgical intervention including release or excision of the distal part of iliotibial band is necessary in situations that are persistent or chronic.

Purpose: The aim of the study was to check the effects of instrument assisted soft tissue mobilization and muscle energy techniques on Pain, Range of Motion and Extensibility parameter among patients with Iliotibial band extensibility.

Merhodology: This randomized clinical trial study included a sample size of 26 patients with IT band syndrome. Subjects were obtained via clinical setup. After complete history, physical examination, determining the inclusion and exclusion criteria, informed consent was obtained from each subject. Subjects were divided in two groups IASTM group and METS group by purposive sampling technique by using lottery method. Pre and post treatment readings were taken from each subject for pain using numerical pain rating scale (NPRS), extensibility of hip range of motion (adduction) , knee range of motion (flexion) using universal goniometer and functional outcome by using LEFS respectively.

Result: The findings of current study showed that within group comparison of NPRS, Hip adduction and knee flexion ROM and functional outcome with strengthening exercises shown significant effects in both groups with greater difference seen in IASTM group than METS group with p-value <0.05.Between group analysis of NPRS, Hip adduction and Knee flexion ROM and functional outcome have also shown significant results between two groups with p-value less than 0.05. Conclusion: The study was that both IASTM and METS with strengthening exercises are effective techniques to decrease pain, improving Extensibility and functional outcome in iliotibial band syndrome patients but IASTM is better and effective technique as compared to METS.

Keywords: Iliotibial Band Syndrome, Instrument assisted soft tissue mobilization, IASTM, Muscle Energy Technique, METS.