Acute Effect of Isometric Excercise on Pain Sensitivity in Adults With Chronic Low Back Pain

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 control 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.