Institute for Clinical Systems Improvement (ICSI) defines sub-acute low back pain as low back pain lasting between 4 and 12 weeks. There is insufficient evidence regarding the comparative effect of muscle energy technique and myofascial mobilization in the management of sub-acute non-specific low back pain with the tightness of quadratus lumborum and erector spinae muscles
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Visual Analogue Scale
Timeframe: Change from baseline pain intensity at 4 weeks
Rolland Morris Disability Questionnaire
Timeframe: Change from baseline functional disability at 4 weeks