Département des Sciences de la Santé, Centre intersectoriel en santé durable, Laboratoire de recherche BioNR - Université du Québec à santé (UQAC), Saguenay, Québec, Canada.
Programme de physiothérapie de l'Université McGill offert en extension à l'Université du Québec à Chicoutimi (UQAC), Saguenay, Québec, Canada.
J Man Manip Ther. 2021 Aug;29(4):235-243. doi: 10.1080/10669817.2020.1864961. Epub 2021 Jan 1.
: Lumbosacral orthosis (LSO) and/or the isolated contraction of the transversus abdominis muscle by the abdominal drawing-in maneuver (ADIM) can increase lumbar stiffness, consequently influencing postural control. The purpose of this study was to compare the effects of LSO and ADIM on postural control during two balance tasks and determine their reliability.: Twenty participants (50% men) randomly performed three experimental conditions: 1) without lumbar stabilization, 2) with LSO), and 3) with ADIM. Each experimental condition was tested in two postural tasks: semi-tandem and one-legged stance on a force platform for 30 seconds, while the Center of pressure postural (COP) parameters were computed.: The two methods of lumbar stabilization were comparable and did not significantly reduce the COP values across time, even though a few individuals presented a change in their COP data above the levels of measurement errors. The reliability of these measurements was generally acceptable and sometimes excellent ( 0.90 and ≤10% error measurement).: Both LSO and isolated contraction of the transversus abdominis muscle by ADIM do not change postural control in one-legged stance and in semi-tandem tasks. These results have implications for use or not these methods for postural control on a rehabilitation perspective.
: 腰骶矫形器（LSO）和/或通过腹部收缩动作（ADIM）孤立收缩腹横肌可以增加腰椎的僵硬程度，从而影响姿势控制。本研究的目的是比较 LSO 和 ADIM 在两种平衡任务中对姿势控制的影响，并确定它们的可靠性。: 20 名参与者（50%为男性）随机进行了三种实验条件：1）无腰椎稳定，2）使用 LSO，3）使用 ADIM。在两种姿势任务中测试了每种实验条件：半串联和单腿站立在力台上 30 秒，同时计算姿势中心压力（COP）参数。: 两种腰椎稳定方法具有可比性，即使少数人的 COP 数据发生变化，但没有显著降低 COP 值随时间的变化。这些测量的可靠性通常是可以接受的，有时甚至是极好的（0.90 和 ≤10%的测量误差）。: LSO 和 ADIM 孤立收缩腹横肌都不会改变单腿站立和半串联任务中的姿势控制。这些结果对于从康复角度来看是否使用这些方法来控制姿势具有重要意义。
