Comparison of Dry Needling and Sustained Pressure in Para-spinal Muscles Trigger Points

This study will compare the effect of dry needling and sustained pressure in the lumbar Paraspinal trigger points in terms of pain threshold and muscle length. There will be two groups ; experimental and control. Half of study group will receive dry needling session along with stretching and strengthening exercises and half of study group will receive sustained pressure technique along with stretching and strengthening exercises .