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The aim of the study was to analyse the effect of mulligan bent leg raise technique on hamstring trigger point. 40 subjects who were diagnosed by hamstring trigger point randomly recruited in the study All subjects received Mulligan bent leg raise technique (BLR), To determine the effect of intervention the patient were assessed on the measures of Active knee extension test (AKE) and visual analogue scale(VAS) on pre and post of the study. t-test indicated significant improvement in Visual analogue scale and Active knee extension test in subject with hamstring trigger point. The study suggests that BLR is effective in decreasing pain and improving range of motion in subjects with hamstring trigger point. Referred pain from the myofascial trigger points (TrPs) in the semitendinosus and semimembranosus muscles concentrates in the lower buttock and adjacent thigh. From there, pain may extend down the posteromedial aspect of the thigh and knee to the upper half of the calf medially. Pain referred from TrPs in the lower half of the biceps femoris (long or short head) focuses on the back of the knee and may extend up the posterolateral area of the thigh as far as the crease of the buttock. Symptoms due to TrPs in the hamstring muscles include pain that is increased by sitting and walking and that often disturbs sleep. Part or all of the pain patterns referred by hamstring TrPs can be caused by TrPs in eight other muscles. The patient with TrPs in the hamstring muscles usually experiences pain on walking; he or she may even limp, because loading this group of muscles is so painful and the muscle inhibition compromises hip stability. When sitting, patients with these TrPs are likely to experience pain posteriorly in the buttock, upper thigh, and back of the knee that is reproduced by pressure on the TrPs. 7

Objectives: Various stretching techniques have been used to improve muscle flexibility in rehabilitation and sports. Mechanisms involving the efficacy of a stretching technique were studied and certain conclusions indicate one technique better than the other. Passive stretching is one most commonly used method and the recent inclusion of other techniques like ballistic stretching, Proprioceptive Neuromuscular Facilitation (PNF) techaniques with its variants and Mulligan's Bent Leg Raise (BLR) have created more scope for researchers to compare and conclude better methods for improving flexibility. The aim of the present study was to measure hamstrings flexibility after a single bout of passive hamstring muscle stretching and BLR and comparing the effects between the two techniques. Methods: 78 asymptomatic individuals with bilateral hamstring tightness were randomized to one of the two groups - passive stretching (n=39) and BLR (n=39). Hamstring flexibility was measured using Back Saver Sit and Reach Test before and after the tests for both right and left lower limbs. Results and Conclusion: Analysis using dependent revealed that both passive stretching and BLR groups improved hamstring flexibility on both sides with improvements of 3.7cm and 4cm on right and left side respectively in BLR group and 1.3cm and 2cm on right and left side respectively in passive stretching group. However results of between group comparisons using independent t tests were not significant (p=.992 and .729 respectively for right and left sides) which suggests that passive stretching is equally effective as BLR technique in improving hamstrings length.