In this HIRT group, participants will perform warm-up activity for 15 minutes then high intensity resistance exercises with 120 seconds of rest interval between each set of exercise and between exercises respectively. After that, generalized stretching exercises as a cool down activity will be performed by the participants. Participants will perform exercises twice weekly, 40-50 minutes/session for 12 weeks under supervision.

In this low-moderate resistance training group, participants will perform warm-up activity for 15 minutes then low-moderate intensity resistance exercises with 120 seconds of rest interval between each set of exercise and between exercises respectively. After that, generalized stretching exercises as a cool down activity will be performed by the participants. Participants will perform exercises twice weekly, 40-50 minutes/session for 12 weeks under supervision.

High Intensity Resistance Exercises Supervised High Intensity Resistance Training with 15 minutes of cycling as a warm-up activity then HIRT through Quadriceps drill, Squats, Lunges, Leg press, Biceps curls and Deadlift with 120 seconds of rest interval between each set of exercise and between exercises will be performed by the participants with appropriate cool down through generalized stretching exercises. Participants will perform exercises twice weekly, 40-50 minutes/session for 12 weeks respectively.

Assessed from baseline. 10 RM is used to assess maximum muscle strength that is to extend knee 10 times against maximum resistance. Weight will be recorded in Kgs.

[Time Frame: 3 Months]

Assessed from baseline. 10 RM is used to assess maximum muscle strength that is to lift weight 10 times against maximum resistance. Weight will be recorded in Kgs.

Assessed from baseline. It is linear flexibility test used to measure extensibility of hamstrings and lower back. Participant will perform test in seated position with extended knees, distance between extended fingers and top of the toe will be recorded in cm.

Assessed from baseline. In this test participant will rise to full standing position from seated position without using armrests of chair and researcher will count the number of complete stand from sitting position within 30 seconds. Inaccurately accomplished stands will not be counted.

Assessed from baseline. It is fitness test that measures the endurance of core stabilizing muscles. Participants will be in prone position with elbow flexion at 90° and forearm resting on floor and toes touching the floor. Two trials will be recorded with 1.5 minutes of rest interval between attempts and extensive isometric time will be used for analysis.

Assessed from baseline. It is sub-maximal exercise test used to evaluate aerobic capacity and endurance. Participant will walk in 30-metre walkway with marked ends for 6 minutes. Patient will be permitted to slow down, stop or rest when required. Record the distance walked in 6 minutes' duration with vital signs monitoring.