Comparison of changes in the contraction of the lateral abdominal muscles between the abdominal drawing-in maneuver and breathe held at the maximum expiratory level
Comparison of changes in the contraction of the lateral abdominal muscles between the abdominal drawing-in maneuver and breathe held at the maximum expiratory level
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DOI：
10.1016/j.math.2012.04.006
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发表时间：
2012-10-01
期刊：
影响因子：
--
通讯作者：
Watanabe, Susumu
中科院分区：
文献类型：
--
作者：
Ishida, Hiroshi;Hirose, Ryohei;Watanabe, Susumu
腹部牵引动作（ADIM）通常用作腰椎稳定训练计划的基本组成部分。腰椎稳定项目的一个潜在限制是训练人们进行ADIM可能很困难且耗时。腹横肌（TrA）、内斜肌（IO）和外斜肌（EO）是呼气时最有力的肌肉。然而，关于ADIM和最大呼气水平下保持呼吸之间腹部肌肉募集的差异知之甚少通过超声成像测量TrA和IO肌肉的厚度，用肌电图（EMG）测定EO肌的活动在33名健康男性中进行ADIM和最大呼气。与ADIM相比，最大呼气产生了TrA和IO肌肉厚度的显著增加（p < 0.001）。最大呼气期间EO肌肉的EMG活动显著高于ADIM期间（p < 0.001）。在最大呼气时，腹外侧肌的肌电活动强度约为最大自主收缩的30%，因此，最大呼气可能是训练腹外侧肌协同激活的有效方法。(C)2012爱思唯尔有限公司保留所有权利。
The abdominal drawing-in maneuver (ADIM) is commonly used as a fundamental component of lumbar stabilization training programs. One potential limitation of lumbar stabilization programs is that it can be difficult and time consuming to train people to perform the ADIM.The transverse abdominis (TrA), internal oblique (IO), and external oblique (EO) muscles are the most powerful muscles involved in expiration. However, little is known about the differences in the recruitment of the abdominal muscles between the ADIM and breathe held at maximum expiratory level (maximum expiration).The thickness of the TrA and IO muscles was measured by ultrasound imaging, and the activity of the EO muscle was measured by electromyography (EMG) in 33 healthy male performing the ADIM and maximum expiration.Maximum expiration produced a significant increase in the thickness of the TrA and IO muscles compared to the ADIM (p < 0.001). The EMG activity of the EO muscle was significantly higher during maximum expiration than during the ADIM (p < 0.001). The intensity of the EMG activity of the EO muscle was approximately 30% of the maximal voluntary contraction during maximum expiration.Thus, maximum expiration may be an effective method for training of co-activation of the lateral abdominal muscles. (C) 2012 Elsevier Ltd. All rights reserved.