The Effect of Height of Hip Joint Abduction-Adduction and Sling on Transverse Abdominis, Rectus Abdominis, and Erector Spinae Muscles Activities during Bridging Exercise with Sling

Abstract

Purpose This study evaluated the effects of bridge exercise on trunk core muscle activity with respect to sling height and hip joint abduction and adduction. Methods 30 healthy adult males participated. In the bridge exercise, the height of the sling was set low or high during hip joint abduction and adduction. Electromyography was used to compare the differences between the muscle activities of the transverse abdominis, rectus abdominis, and erector spinae muscles. Results The muscle more activities of the transverse abdominis, rectus abdominis, and erector spinae were significantly higher in Hip adductor position. The muscle activities of the transverse abdominis, rectus abdominis were significantly higher in the high sling position. Especially, A high activity in the transverse abdominis muscle was interaction in abduction and adduction of hip, high sling position. Conclusion These findings suggest that the activities of the abdominal and trunk muscles should put adduction of hip and the activities of the abdominal muscle have to make sling position high during bridging exercises with sling.