Lee Dae Hee, Hong Seong Kyung, Lee Yang-Soo, Kim Chul-Hyun, Hwang Jong Moon, Lee Zeeihn, Kim Jong Min, Park Donghwi
Department of Rehabilitation Medicine, Daegu Fatima Hospital Department of Rehabilitation Medicine, New Life Hospital Department of Rehabilitation Medicine, School of Medicine, Kyungpook National University Department of Rehabilitation Medicine, Kyungpook National University Hospital, Daegu, Korea.
Medicine (Baltimore). 2018 Jul;97(27):e11369. doi: 10.1097/MD.0000000000011369.
Despite the importance of strengthening of the transversus abdominis (TrA) muscle in individuals with low back pain, the effect of real-time ultrasound imaging on maintenance in selective strengthening of abdominal hallowing exercise (AHE) performance has not been investigated. So, the aim of this study was to investigate the effects of AHE with real-time ultrasound imaging feedback on selective reinforcing the TrA muscle.Twenty healthy subjects were enrolled prospectively and randomized to train AHE for 2 weeks either by conventional feedback (group A) or by visual feedback from real-time ultrasound imaging additional to conventional feedback (group B). The changes in thickness of TrA, internal oblique abdominal muscle (IO), and external oblique abdominal muscle (EO) were measured using the ultrasonography. The changes in muscle activities of TrA-IO and EO were measured using surface electromyography.The thickness of TrA, IO, and EO muscles in resting was not significantly changed in both groups A and B. However, the ratio of root mean square (RMS) values of TrA-IO/EO muscles, which mirrors selective contraction of TRA-IO muscles against EO muscle, was significantly higher in group B than in group A.In healthy subjects, training with AHE using real-time ultrasound imaging feedback may be a useful additional method to conventional feedback for strengthening the TrA muscles selectively.
尽管增强腹横肌（TrA）对腰痛患者很重要，但实时超声成像对维持选择性强化腹部凹陷运动（AHE）表现的影响尚未得到研究。因此，本研究的目的是探讨实时超声成像反馈的AHE对选择性强化TrA肌肉的影响。前瞻性招募了20名健康受试者，并将其随机分为两组，分别通过传统反馈（A组）或在传统反馈基础上增加实时超声成像视觉反馈（B组）进行为期2周的AHE训练。使用超声测量TrA、腹内斜肌（IO）和腹外斜肌（EO）厚度的变化。使用表面肌电图测量TrA-IO和EO肌肉活动的变化。A组和B组静息时TrA、IO和EO肌肉的厚度均无显著变化。然而，反映TrA-IO肌肉相对于EO肌肉选择性收缩的TrA-IO/EO肌肉均方根（RMS）值之比，B组显著高于A组。在健康受试者中，使用实时超声成像反馈进行AHE训练可能是一种比传统反馈更有效的选择性强化TrA肌肉的额外方法。
