Patients in this group will receive ERGON Technique along with conventional therapy

Patients in this group will receive Proprioceptive Neuromuscular Facilitation (PNF) stretching along with conventional therapy

• Hot pack for 15 minutes.
• Patient position: Prone with knee flexion approximately 45◦.
• Position of therapist: Standing at the affected side of patient.
• Technique:Massage cream will be applied on the hamstring and overactive or short muscle fibres that are restricted.The instrument will be applied parallel to the muscle fibers, both in a distal to proximal and them proximal to distal direction as needed.Then gentle massage stroking from the origin to the insertion will be performed using the instrument. Instrument Assisted Soft Tissue Mobilization(IASTM) will be applied for 5 minutes.
• Strengthening exercises for quadriceps and hamstring will then be performed.
• Isometrics exercises of Quadriceps: By placing a towel roll below the knee and press and hold for 20 seconds, 5 sets.
• Isometrics exercises Hamstrings: By placing a towel roll below the knee and press and hold for 20 seconds, 5 sets.
• Wall sits: For 10 seconds, 5 sets.

The visual analog scale (VAS) is a validated, subjective measure for acute and chronic pain. Scores are recorded by making a handwritten mark on a 10-cm line that represents a continuum between "no pain" and "worst pain. It is used to find out the intensity of pain.

The Western Ontario and McMaster Universities Arthritis Index(WOMAC) is widely used in the evaluation of Hip and Knee Osteoarthritis. It is a self-administered questionnaire consisting of 24 items divided into 3 subscales.

The Active Knee Extension Test is used to assess hamstring muscle length and the range of active knee extension in the position of hip flexion.