IDMEC - Pólo FEUP, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
J Biomech. 2012 Jan 3;45(1):199-201. doi: 10.1016/j.jbiomech.2011.09.018. Epub 2011 Oct 19.
The present study focuses on the determination of human temporal tendons and deep temporal fascia biomechanical behavior. The tensile and shear loads generated by the temporal muscle are transmitted to the masticatory system by the temporal tendons and muscle fascia. Establishing these connective tissues' biomechanical properties will help to develop proper finite element-based simulations of the human masticatory system, which will allow better understanding of diseases affecting the temporomandibular joint. The tissues were harvested from 8 male fresh cadavers, who were subjected to uniaxial tension tests. Available literature states that different connective tissues undergo identical biochemical, cellular and mechanical changes during senescence. Several mechanical phenomena occur during maturation, resulting in stiffer, stronger and more stable connective tissues, although less flexible. Based on this evidence, the present study suggests that older temporal tendon and fascia samples are stiffer than younger ones. We also found significant higher secant moduli with increasing age.
本研究旨在确定人类颞肌腱和深层颞筋膜的生物力学行为。颞肌产生的拉伸和剪切载荷通过颞肌腱和肌肉筋膜传递到咀嚼系统。建立这些结缔组织的生物力学特性将有助于开发基于有限元的人类咀嚼系统的适当模拟，这将有助于更好地理解影响颞下颌关节的疾病。这些组织取自 8 名男性新鲜尸体，他们接受了单轴拉伸测试。现有文献表明，不同的结缔组织在衰老过程中经历相同的生化、细胞和机械变化。在成熟过程中会发生几种力学现象，导致结缔组织更硬、更强壮且更稳定，尽管柔韧性降低。基于这一证据，本研究表明，年龄较大的颞肌腱和筋膜样本比年轻的更硬。我们还发现，随着年龄的增长，割线模量显著增加。
