PDF(Pubmed)
Abstract：
UNASSIGNED: A concern expressed by the clinical community is that the constraint of motion provided by an ankle foot orthosis (AFO) may lead the user to become dependent on its stiffness, leading to learned non-use. To examine this, we hypothesized that using an experimental AFO-footwear combination (exAFO-FC) that constrains ankle motion during walking would result in reduced soleus and tibialis anterior EMG compared to free (exAFO-FC) and control (no AFO, footwear only) conditions.
UNASSIGNED: A total of 14 healthy subjects walked at their preferred speed (1.34 ± 0.09 m·s-1) for 15 min, in three conditions, namely, control, free, and stop.
UNASSIGNED: During the stance phase of walking in the stop condition, ipsilateral soleus integrated EMG (iEMG) declined linearly, culminating in a 32.1% reduction compared to the control condition in the final 5 min interval of the protocol. In contrast, ipsilateral tibialis anterior iEMG declined in a variable fashion culminating in an 11.2% reduction compared to control in the final 5 min interval. During the swing phase, the tibialis anterior iEMG increased by 6.6% compared to the control condition during the final 5 min interval. The contralateral soleus and tibialis anterior exhibited increased iEMG in the stop condition.
UNASSIGNED: An AFO-FC functions as a biomechanical motion control device that influences the neural control system and alters the output of muscles experiencing constraints of motion.
UNASSIGNED: A total of 14 healthy subjects walked at their preferred speed (1.34 ± 0.09 m·s-1) for 15 min, in three conditions, namely, control, free, and stop.
UNASSIGNED: During the stance phase of walking in the stop condition, ipsilateral soleus integrated EMG (iEMG) declined linearly, culminating in a 32.1% reduction compared to the control condition in the final 5 min interval of the protocol. In contrast, ipsilateral tibialis anterior iEMG declined in a variable fashion culminating in an 11.2% reduction compared to control in the final 5 min interval. During the swing phase, the tibialis anterior iEMG increased by 6.6% compared to the control condition during the final 5 min interval. The contralateral soleus and tibialis anterior exhibited increased iEMG in the stop condition.
UNASSIGNED: An AFO-FC functions as a biomechanical motion control device that influences the neural control system and alters the output of muscles experiencing constraints of motion.
摘要：
■临床社区表达的担忧是，踝足矫形器（AFO）提供的运动约束可能会导致用户变得依赖其刚度，导致学会不使用。为了检查这一点，我们假设，与自由（exAFO-FC）和对照（无AFO，仅限鞋类)条件。
■共有14名健康受试者以他们喜欢的速度（1.34±0.09m·s-1）行走15分钟，在三个条件下，即,control,免费,然后停下来。
■在停止状态下行走的站立阶段，同侧比目鱼肌综合肌电图(iEMG)线性下降，在方案的最后5分钟间隔内，与对照条件相比，最终降低了32.1%。相比之下,同侧胫骨前iEMG以可变的方式下降，最终在最后5分钟间隔内与对照组相比降低了11.2％。在摆动阶段,在最后5分钟间隔内,胫骨前iEMG与对照组相比增加6.6%.在停止状态下，对侧比目鱼肌和胫骨前肌表现出iEMG增加。
■AFO-FC用作影响神经控制系统并改变经受运动约束的肌肉的输出的生物力学运动控制装置。
■共有14名健康受试者以他们喜欢的速度（1.34±0.09m·s-1）行走15分钟，在三个条件下，即,control,免费,然后停下来。
■在停止状态下行走的站立阶段，同侧比目鱼肌综合肌电图(iEMG)线性下降，在方案的最后5分钟间隔内，与对照条件相比，最终降低了32.1%。相比之下,同侧胫骨前iEMG以可变的方式下降，最终在最后5分钟间隔内与对照组相比降低了11.2％。在摆动阶段,在最后5分钟间隔内,胫骨前iEMG与对照组相比增加6.6%.在停止状态下，对侧比目鱼肌和胫骨前肌表现出iEMG增加。
■AFO-FC用作影响神经控制系统并改变经受运动约束的肌肉的输出的生物力学运动控制装置。
