International Journal of Multidisciplinary Research and Development

International Journal of Multidisciplinary Research and Development

E-ISSN: 2349-4182
P-ISSN: 2349-5979

Vol. 6, Issue 3 (2019)

Effectiveness of muscle energy technique (MET) and proprioceptive neuromuscular facilitation (PNF) stretching on hamstring flexibility

Author(s): Rutvika Bokil, Dr. Keerthi Rao
Abstract: Background: Hamstring muscle complex is an important hip extensor and knee flexor. Hamstring tightness is an extremely common problem which causes low back pain and pain in posterior thigh. Muscular tightness is postulated as an intrinsic risk factor for development of muscle injury. Keeping these muscles flexible is important. So the study is carried out using the two techniques, Muscle Energy Technique (MET) and Proprioceptive Neuromuscular Facilitation (PNF) stretching technique so as to improve the hamstring muscle flexibility and compare its effects on muscle flexibility. Objective: This study aims to compare the effectiveness of Muscle Energy Technique (MET) and Proprioceptive Neuromuscular Facilitation (PNF) stretching technique on hamstring flexibility. Methodology: fifty subjects having hamstring tightness were selected by simple random convenient sampling and divided into two equal groups randomly. One group received MET and other group received PNF stretching technique. And study was carried out for 4 weeks. Outcome measures: Sit and reach test and ROM (active knee extension test) Results: Study suggests that ROM of Muscle Energy Technique (MET) of right and left side mean and standard deviation pre interpretation value is 33.84±5.382, 32.48±5.838 respectively and post interpretation value is 41.96±5.037, 39.92±4.838 respectively. Sit and reach test after MET mean and standard deviation pre interpretation value is 23.16±2.461 and post interpretation value is 19.8±2.661. ROM of Proprioceptive Neuromuscular Facilitation (PNF) contract relax stretching technique of right and left side mean and standard deviation pre interpretation value is 34.36±4.358, 31.76±5.060 respectively and post interpretation value is 34.68±4.394, 32.04±5.111 respectively. Sit and reach test after PNF mean and standard deviation pre interpretation value is 21.48±2.162 and post interpretation value is 21.2±2.179. Conclusion: Study concluded that the effect of muscle energy technique (MET) is more on the hamstring flexibility than PNF stretching technique.
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