Comparison of post isometric relaxation and post facilitation stretching techniques on hamstring muscle flexibility in collegiate athletes: A randomized clinical trial

Abstract

Background: The multi-jointed nature of the hamstring muscles causes them to shorten which impacts the biomechanics of the pelvis and lumber region. Hamstring tightness is more common in women than in males. Objective: To compare the effect of post-isometric relaxation and post-facilitation stretching in improving hamstring muscle flexibility among collegiate athlete's athlete. Methods: Study was a randomized clinical trial. Patients following the inclusion criteria from Pakistan Sports Board, Lahore were categorized in two groups; group A and group B. Male patients aged from 18 to 35 years, with a history of hamstring muscle tightness (bilateral) or acute hamstring injuries were included. Group A was treated with post isometric relaxation and conventional treatment while group B received post facilitation stretching and conventional treatment; for 4 weeks and with 3 sessions per week. The baselines data was taken for range of motion, sit and reach test, active knee extension test, and straight leg raise and lower extremity functional scale. Results: There were a total of 17 male volunteers in each group. Group A's mean age was 28.58±3.9, years whereas group B's mean age was 29.25±4.4 The groups' respective Lower Limb Functional Scores (LEFS) were 58.41±4.84 in group A and 40.52±2.85 in group B, with a p-value of less than 0.05. Lower limb functional score (LEFS) within the groups with p <0.05 was 22.17±8.63 and 40.52±2.85. Conclusion: The current investigation found that post-isometric relaxing and stretching both improve hamstring flexibility. Clinical Trial Number: NCT05727501