Department of Physiotherapy, School of Clinical Sciences, Auckland University of Technology, Northcote, Auckland, New Zealand; Active Living and Rehabilitation: Aotearoa New Zealand, Health and Rehabilitation Research Institute, School of Clinical Sciences, Auckland University of Technology, Northcote, Auckland, New Zealand.
Department of Physiotherapy, School of Clinical Sciences, Auckland University of Technology, Northcote, Auckland, New Zealand.
Ultrasound Med Biol. 2021 Sep;47(9):2560-2569. doi: 10.1016/j.ultrasmedbio.2021.05.018. Epub 2021 Jul 2.
Entrapment neuropathies affecting the sciatic nerve tract may adversely affect neural biomechanical features such as excursion and strain. There is a paucity of in vivo evidence examining the effects of forward bending upon sciatic nerve excursion and strain. The purpose of this study was to assess the reliability of ultrasound imaging in measuring sciatic nerve excursion and strain during forward bending movements. Secondary aims were to quantify sciatic nerve excursion and strain during forward bending movements and to assess the relationship between sciatic nerve excursion and movements of the hip and lumbar spine. The reliability of measuring sciatic nerve excursion was high to excellent whilst measurement of sciatic nerve strain was moderate. The amount of hip flexion, during forward bending, was a strong predictor of sciatic nerve excursion. These findings will support clinicians in the assessment and treatment of entrapment neuropathies, in addition to providing a foundation for future research.
累及坐骨神经的嵌压性神经病可能会对神经生物力学特性产生不利影响，如位移和应变。目前，有关前屈对坐骨神经位移和应变影响的活体证据还很少。本研究的目的是评估超声成像在测量前屈运动中坐骨神经位移和应变的可靠性。次要目的是量化前屈运动中坐骨神经的位移和应变，并评估坐骨神经位移与髋关节和腰椎运动之间的关系。测量坐骨神经位移的可靠性为高到极好，而测量坐骨神经应变的可靠性为中等。前屈时髋关节的屈曲程度是坐骨神经位移的一个重要预测因素。这些发现将为临床医生评估和治疗嵌压性神经病提供支持，同时也为未来的研究提供基础。
