earticle

영어

The purpose of this study is to examine changes in the thicknesses and ratios of the deep muscle fibers, surface muscle fibers, and entire muscle fibers of the multifidus muscles according to the lumbar stabilization exercise methods used for spinal stabilization. Ten different lumbar stabilization exercise methods were implemented by 20 healthy men in random order while measuring the thickness of multifidus muscle fibers through ultrasound images. Each exercise method was maintained for 10 sexonds, and a resting time for 5 minutes was given after completion of each exercise method to avoid fatigue due to exercise. This study was approved by Kyungsung University's Human Research Ethics Committee. According to the results, the thickness of the surface muscle fibers of the multifidus muscles significantly increased in the exercise method in which the arms and legs were lifted (p＜.05). The thickness of the deep muscle fibers of the multifidus muscles significantly increased in the hollowing and bracing exercising methods in which the arms and legs were not lifted (p＜.05). There was no significant difference in the total thickness of muscle fibers of the multifidus muscles in individual eack exercise methods (p＞.05). The ratio of the thickness of surface muscle fibers to the total thickness of muscle fibers was higher in the exercise method in which the arms and legs were lifted (p＜.05), while the ratio of the thickness of deep muscle fibers to the total thickness of muscle fibers was higher in the hollowing and bracing exercising method in which the arams and legs were not lifted (p＜.05). In conclusion, when lumbar stabilization exercise should be performed at clinics to strengthen the deep muscle fibers of the multifidus muscles that have larger effects on the stability of spinal segments, considering the stability of the spine, hollowing exercise methods and bracing exercise methods that do that cause isotonic extension the spine should be appropriate.