Participants were directed to rest their backs against the wall with shoulder width apart and feet parallel, then descend until they achieve an angle of 100 degrees at knee joint. The knee joint angle was assessed using a goniometer placed on the lateral epicondyle of the knee, aligned with the femur, while the anchor arm was aligned with the lateral malleolus. They were instructed to maintain the isometric hold for up to three minutes, or until volitional fatigue was reached.with a 30-second rest period between each squat hold.

Participants were directed to rest their backs against the wall with shoulder width apart and feet parallel, then descend until they achieve an angle of 100 degrees at knee joint. The knee joint angle was assessed using a goniometer placed on the lateral epicondyle of the knee, aligned with the femur, while the anchor arm was aligned with the lateral malleolus. They were instructed to maintain the isometric hold for up to three minutes, or until volitional fatigue was reached.with a 30-second rest period between each squat hold.

Immediately post 60 second rest, Determine the participant's maximum angle using the double leg lowering test from supine position let the participant with both legs straightened before lifting the posterior hip, lowering the legs to a specific angle. Turn on the stopwatch. Hold the position near--maximally, try to achieve on (IES=9/10) and hold for the longest duration. They should reach 4 minutes for 3 repetition with 30 seconds rest between repetition

The CON group served as the control group and did not perform any exercise. Participants were instructed to sit quietly in a standard height stationary clinical room patient chair for the entire eight minutes.

Participants were directed to rest their backs against the wall with shoulder width apart and feet parallel, then descend until they achieve an angle of 100 degrees at knee joint. The knee joint angle was assessed using a goniometer placed on the lateral epicondyle of the knee, aligned with the femur, while the anchor arm was aligned with the lateral malleolus. They were instructed to maintain the isometric hold for up to three minutes, or until volitional fatigue was reached.with a 30-second rest period between each squat hold.

Pain sensitivity was assessed via pressure pain threshold (PPT) using a standard procedure. The PPT was assessed by a digital pressure algometer (Wagner digital force Ten FDX 25 with 1 cm 2 rubber tip).This instrument has been widely utilized in various studies and has been shown to be valid and reliable in assessing PPT among people with musculoskeletal pain. If post intervention PPT was higher than pre-intervention value, this indicated that pain sensitivity decreased, suggesting exercise induced hypoalgesia occurred. If post-intervention PPT was lower than pre-intervention PPT, this indicates that pain sensitivity increased, suggesting that exercise induced hyperalgesia occurred.

It is a subjective rating of pain intensity in the lower back using a visual analog scale,where a rating of zero indicates that participant don't have pain and a rating of 10 indicates that the most severe pain. The VAS is reliable and valid for measuring pain in individuals with chronic musculoskeletal conditions. A change of one point in pain intensity on this scale is regarded as the minimal clinically important difference.