PNF and Movement

Korea Proprioceptive Neuromuscular Facilitation Association (대한고유수용성신경근촉진법학회)
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Changes in Thickness of Transverse Abdominis, Internal Oblique, and External Oblique through the Abdominal Drawing-in Maneuver Exercise Incorporating a Stabilizer or the Bridge Exercise

교각자세 또는 스태빌라이저를 이용한 복부 드로우-인 운동의 배가로근, 배속빗근, 배바깥빗근 두께 변화

  • Yoon, Sam-Won (Department of Physical Therapy, Graduated School of Catholic University of Pusan) ;
  • Goo, Bong-Oh (Department of Physical Therapy, Catholic University of Pusan)
  • 윤삼원 (부산가톨릭대학교 대학원 물리치료학과) ;
  • 구봉오 (부산가톨릭대학교 물리치료학과)
  • Received : 2021.08.27
  • Accepted : 2021.10.05
  • Published : 2021.12.31
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Abstract

Purpose: The abdominal drawing-in maneuver (ADIM) is an exercise that selectively strengthens deep abdominal muscles. It is reported to be effective in strengthening those muscles when using a pressure biofeedback unit. However, multiple factors of bridge exercise seem to bring exercise result of ADIM without stabilizer as they influence execution of ADIM. Therefore, the purpose of this study was to compare changes in the thickness of deep abdominal muscles through the ADIM exercise incorporating either a stabilizer or the bridge exercise. Methods: Thirty healthy adults who had voluntarily given their consent were selected as the subjects. A diagnostic sonograph was used to measure the thickness of the subjects' transverse abdominis, internal oblique, and external oblique muscles. First, the thickness of the subjects' deep abdominal muscle was measured while maintaining the ADIM using the stabilizer. After three minutes of rest, the thickness was measured again while the subjects maintained the ADIM with the bridge exercise. Results: In both exercises, the thickness of the transverse abdominis showed a statistically significant increase, with a more significant increase while executing the ADIM using the bridge exercise. In both exercises, the thickness of the internal oblique showed a statistically significant increase, with a more significant increase while executing the ADIM using the bridge exercise. The thickness of the external oblique showed a statistically significant increase only in the ADIM using the bridge exercise. Conclusion: Though strengthening is not as selective as the ADIM using a stabilizer, the ADIM using the bridge exercise has a more increased thickness of the transverse abdominis and the internal oblique than that of the internal oblique. Based on the outcome of this study, the ADIM using the bridge exercise without a stabilizer can selectively strengthen deep abdominal muscles even more.

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References

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