Department of Physical Therapy, College of Health Sciences, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam 330-714, Korea.
Department of Health, Graduate School, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam 330-714, Korea.
Medicina (Kaunas). 2021 Feb 2;57(2):129. doi: 10.3390/medicina57020129.
The maximal abdominal contraction maneuver (MACM) was designed as an effective and efficient breathing exercise to increase the stability of the spinal joint. However, it has not been determined whether MACM is more effective and efficient than the maximal expiration method. Thus, the present study was undertaken to investigate whole abdominal muscle thickness changes after MACM. Thirty healthy subjects (17 males and 13 females) participated in this study. An experimental comparison between MACM and the maximal expiration task was conducted by measuring the change of abdominal muscle thickness such as the transverse abdominis (TrA), internal oblique (IO), external oblique (EO) and rectus abdominis (RA) using ultrasound images. The results indicated that MACM resulted in significantly greater muscle thickness increases of the TrA and RA than the maximal expiration exercise ( < 0.05). MACM provided better exercise than the maximal expiration exercise in terms of increasing spine stability, at least from a co-contraction perspective.
最大腹部收缩动作（MACM）被设计为一种有效且高效的呼吸运动，以增加脊柱关节的稳定性。然而，目前还不清楚 MACM 是否比最大呼气法更有效和高效。因此，本研究旨在探讨 MACM 后全腹肌厚度的变化。
30 名健康受试者（17 名男性和 13 名女性）参加了这项研究。通过超声图像测量横腹肌（TrA）、内斜肌（IO）、外斜肌（EO）和腹直肌（RA）等腹部肌肉厚度的变化，对 MACM 与最大呼气任务进行了实验比较。
结果表明，MACM 引起的 TrA 和 RA 肌肉厚度增加明显大于最大呼气运动（<0.05）。从共收缩的角度来看，MACM 比最大呼气运动提供了更好的增加脊柱稳定性的运动。
