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Spinal Nerves: Plexus II01:21

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The plexuses of the lower body include the lumbar, sacral, and coccygeal plexuses, which innervate the abdomen, pelvis, legs, and coccygeal region. These plexuses control the transmission of sensory information and coordinate motor functions of the lower body.
The Lumbar Plexus
The lumbar plexus is situated within the lumbar region of the back and is primarily formed by the first four lumbar spinal nerves (L1 to L4). This plexus extends its branches into several nerves, including the...
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Spinal Nerves: Anatomy01:23

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Spinal nerves are pivotal conduits in the nervous system, bridging the central nervous system (CNS) with the peripheral nervous system (PNS). These nerves enable a complex communication network between the brain, spinal cord, and the rest of the body, facilitating sensory input, motor output, and autonomic functions.
There are 31 bilateral pairs of spinal nerves, each emerging from the spinal cord through the intervertebral foramina—openings between adjacent vertebrae. These nerves are...
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Updated: Sep 10, 2025

Biomechanical Changes Related to Low Back Pain: An Innovative Tool for Movement Pattern Assessment and Treatment Evaluation in Rehabilitation
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Biomechanical Changes Related to Low Back Pain: An Innovative Tool for Movement Pattern Assessment and Treatment Evaluation in Rehabilitation

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坐姿和时间对腰部神经根功能的影响:个案对照研究

Hamad S Al Amer1, Shahul Hameed Pakkir Mohamed1, Sharon L Olson2

  • 1Department of Health Rehabilitation Sciences, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk, Saudi Arabia.

Journal of back and musculoskeletal rehabilitation
|August 26, 2025
PubMed
概括

不同于立或俯卧的姿势, 低沉的姿势可以减轻脊柱压力和神经根压力. 长时间坐着可能会压缩腰部神经根, 可能导致腰部疼痛.

关键词:
一个H反射缺口压力腰部骨干 腰部骨干职业健康问题坐着的姿势脊柱负荷

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科学领域:

  • 生物医学工程
  • 神经科学
  • 工程学

背景情况:

  • 长时间坐着和不良姿势与腰部疼痛有关.
  • 了解对腰部神经根的生物力学影响对于预防至关重要.

研究的目的:

  • 研究不同坐姿和长时间坐姿如何影响腰部神经根功能.
  • 测量Soleus (SOL) 霍夫曼反射 (H-反射) 幅度作为神经功能的指标.

主要方法:

  • 30名健康人被分为长时间坐 (≥6小时/天) 和对照组 (≤4小时/天).
  • 在直立,腰,腰和仰卧状态下记录了SOL H-反射幅度和腹肌压力.
  • 脊柱负荷通过腹肌压力测量进行评估.

主要成果:

  • 低腰座位降低了腹肌压力,增加了H反射幅度,类似于仰卧姿势.
  • 立和倒的姿势增加了腹肌压力,并显著降低了H反射幅度.
  • 与对照组相比,长时间坐着的组显示出明显较低的SOLH反射幅度.

结论:

  • 坐着的姿势和时间对腰椎和神经根有不同的影响.
  • 坐着似乎可以减轻脊柱压力和神经根压力.
  • 长时间坐着可能会通过腰部神经根压缩导致腰部疼痛.