Improvement of Iliopsoas Flexibility: A Comparative Effectiveness between Post Isometric Relaxation and Static Stretching
Keywords:iliopsoas tightness, modify Thomas test, muscle energy technique (post isometric relaxation), and static stretching.
Background and Purpose: Illiopsoas muscle not commonly gets stretched in the activities of daily living.
So tightness may be developed. Most common component of the physical conditioning programme is
flexibility used as an adjunct to the muscle strength and endurance training. The purpose of this study was to
compare the effectiveness of MET (PIR) technique and Static stretching technique directed at the illiopsoas
muscle on hip extension.
Objective: To find out pre and post interventional effect of MET (PIR) and Static stretching techniques and
compare the effectiveness of both techniques for increasing flexibility of illiopsoas muscle.
Method: A Quasi Experimental study was conducted. Total 50 participants were included in our study on
the basis of the inclusion criteria. Then participants divided in to two groups: Group A received MET (PIR)
and Group B received Static Stretching. Iliopsoas tightness is assessed by modified Thomas test and degree
of hip extension measured by the universal goniometer.
Result: The study show that the both the techniques MET (PIR) and Static Stretching significantly effective
for the illiopsoas tightness. Comparison of both techniques shown MET (PIR) group was significantly
effectiveness for iliopsoas tightness than Static Stretching group.
Conclusion: MET (PIR) technique was most effective for improving flexibility for iliopsoas than Static