earticle

영어

Purpose: This study aimed to apply an unstable support surface to the upper and lower extremities and to determine how the application of the upper and lower extremities affects the change in thickness of the abdominal muscles. Methods: The experiment was conducted by randomly classifying adults in their 20s into three groups: plank exercise groups that applied an unstable support surface to only the upper extremities, to only the lower extremities, and to both the upper and lower extremities. The experiment was conducted three times a week for a total of 6 weeks. In this study, abdominal muscle thickness was measured using an ultrasound imaging device. Repeated measures analysis of variance was performed for statistical analysis. Results: Muscle thickness significantly increased in the oblique extrinsic, oblique oblique, and transversus abdominis according to the training period in all groups that performed plank exercise on unstable support surfaces (p<.05). Conclusion: Plank exercises on an unstable support surface for improving abdominal muscles in the clinical field can be applied according to the physical condition of the client.