Comparison of Trunk Muscles Thickness in Three Different Bridge Exercises by Ultrasound Fusion Imaging

융합형 초음파 영상을 통한 세 가지 교각운동에 따른 몸통근육의 두께 비교

  • Kang, Ji-Hyun (Dept. of Physical Therapy, Division of Health Science, Baekseok University) ;
  • Shim, Jae-Hun (Dept. of Physical Therapy, Division of Health Science, Baekseok University)
  • 강지현 (백석대학교 보건학부 물리치료학과) ;
  • 심재훈 (백석대학교 보건학부 물리치료학과)
  • Received : 2015.08.22
  • Accepted : 2015.10.20
  • Published : 2015.10.31


This study examines the effects of different types of bridge exercises on the thickness of trunk muscles through ultrasound fusion imaging on 32 students. The thickness of the internal oblique (IO), external oblique (EO), transverse abdominis (TrA), and multifidus (Mf) muscles were measured in three different bridge exercises. The exercises included a supine bridge exercise, which was performed on a fixed support surface (Exercise A), a gym ball bridge exercise (Exercise B), and a sling bridge exercise (Exercise C). There were significant differences among the three bridge exercises in the IO, TrA, and Mf muscles. The IO was thickest in Exercise B followed by Exercise A and C. In contrast, the TrA and the Mf muscles were thickest in Exercise C followed by Exercise A and B. Therefore, the sling bridge exercise may be a more effective method of enhancing trunk muscle thickness than the exercises performed in other positions. Until recently, no previous studies had observed substantial changes in muscle thickness using ultrasound fusion imaging. This study suggests that sling bridge exercises contribute most to the activation of trunk muscles. Therefore, the research can contribute to the prescription and application of bridge exercises in clinical practices.


Bridge exercise;Muscle thickness;Ultrasound;Transverse abdominis;Multifidus


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