The SEG contracted the transversus abdominis and raised the trunk in all the exercise positions. In the first exercise of the trunk stabilization exercises using a sling, the patients hooked their heels in the sling and raised their pelvis and maintained it in a raised position for 10 seconds. In the second exercise, the patients hooked one knee in the sling in a side-lying position and raised their pelvis, so that their head, trunk, and lower extremity made a straight line. They maintained this posture for 10 seconds. The same method was performed on the opposite side. In the third exercise, the patients hooked their knees in the sling and raised their trunk and maintained this stance in a prone on elbow position. In the first exercise in the MEG, the patients tilted their pelvis in a hook-lying position (HLP) to the backside and maintained the position for 10 seconds. In the second exercise, they extended their arms toward the front side, raised the scapula in a HLP, and bent the trunk, and maintained the position for 10 seconds. The third exercise involved raising the pelvis and maintaining the position for 10 seconds, taking care to ensure that the lumbar region did not sag. In the fourth exercise, the patients stretched one leg straight in a pelvic elevation position and maintained the position for five seconds, and then adopted the same position on the opposite side5). Both groups conducted their exercises three times per week, 30 minutes each time, and carried out warming-up and cooling-down exercises before and after the exercise. Measurements were collected twice, before and after the intervention, which lasted for 8weeks.