This study is a randomized controlled trial and the purpose of this study is to determine the effects of Static Stretching Versus Post Facilitation Stretch of Iliopsoas combined with core stability exercises in Non-Specific Low Back Pain"

The purpose of this study is to determine the effects of Static Stretching Versus Post Facilitation Stretch of Iliopsoas on Pain, physical function, lumbar ROM and Hip ROM in patients Non-Specific Low Back Pain" adults (age : 30-50 years )

1. Numeric pain rating scale
2. Goniometer
3. Inclinometer
4. Oswestry Disability Questionairre Data will be collected before and after the intervention protocol for each participant.

Data collection procedure: Participants of interest would be approached and explained about the research. Informed written consent will be taken. Pre and post intervention scores will be recorded.

Inclusion Criteria

• Gender: Both male and female
• Individuals aged 30-50 years
• Non-Specific low back pain for at least 3 months
• pain radiating no further than the buttock
• Pain range between 3-8 on NPRS
• Positive Thomas Test

Exclusion Criteria:

• Diagnosis of systemic metabolic and/or neurological disorder, neuromuscular disorders, pregnancy
• Patients who have been receiving any other physical therapy treatment for NSLBP in the same period of the interventions
• Patients having Low back pain with any specific cause