评估干部肌肉内和腹内压力对脊柱几何补偿的影响
Adi Mithani1, Ahmed Aoude2, Mark Driscoll1
1Musculoskeletal Biomechanics Research Lab, Department of Mechanical Engineering, McGill University, 845 Sherbrooke St. W, Montréal, Quebec H3A 0C3, Canada; Orthopaedic Research Lab, Montreal General Hospital, 1650 Cedar Ave (LS1.409), Montreal, Quebec H3G 1A4, Canada.
Journal of biomechanics
|June 24, 2025
概括
肌内压力 (IMP) 和腹内压力 (IAP) 在向前曲时显著影响脊柱配置. 了解这种相互作用是管理下背部功能障碍的关键.
科学领域:
- 生物力学 生物力学
- 脊柱力学 脊柱力学 脊柱力学
- 计算机建模 计算建模
背景情况:
- 脊柱软组织的被动机械特性会影响脊柱的结构.
- 之前的研究强调了被动组织的作用,但积极压力系统的理解较少.
研究的目的:
- 评估干部腹部和肌内压力 (IMP) 对脊柱几何补偿的影响.
- 量化改变IMP和腹内压力 (IAP) 对脊柱运动和曲率的影响.
主要方法:
- 使用经过验证的有限元脊柱模型,包括脊椎,胸,IVD,骨盆,带和肌肉.
- 模拟60°向前曲,肌肉和腹腔模拟为充满液体的实体,用于压力量化.
- 在模拟压力变化后,分析了腰部细分旋转,运动范围 (RoM),胸部角 (TKA) 和腰部角 (LLA) 的变化.
主要成果:
- 副脊柱IMP增加10倍或IAP增加20倍,腰部RoM降低了8.4°.
- 观察到TKA和LLA的增加分别高达5.8°和4.7°.
- 增加的IAP与减少的副脊柱IMP相关,反之亦然,表明了反向关系.
结论:
- 在副脊柱IMP和IAP之间存在协同作用,影响脊柱细分移动性和几何.
- 这种相互作用表明,针对下背部功能障碍的两个肌肉群具有潜在的临床益处.
- 该研究提供了对脊柱稳定性和运动的活跃生物力学贡献的见解.
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