Hung T K, Chang G L
J Biomech Eng. 1981 Feb;103(1):43-7. doi: 10.1115/1.3138244.
An in-vivo experimental method was developed to measure the stress-strain relationship of a spinal cord segment of anesthetized puppies. A pseudo Young's modulus was defined for the linear region followed by a nonlinear rheological behavior of finite strain. Both the sensory response and motor function of the puppies were fully recovered within the 5 days after the spinal cord segment in the first lumbar region was elongated once by 50 percent or less. The usefulness of the in-vivo experiments was further elaborated by demonstrating the large artifacts that could be associated in an in-vitro experiment.
开发了一种体内实验方法来测量麻醉幼犬脊髓节段的应力-应变关系。针对线性区域定义了一个伪杨氏模量，随后是有限应变的非线性流变行为。在第一腰椎区域的脊髓节段一次性拉长50%或更少后的5天内，幼犬的感觉反应和运动功能均完全恢复。通过展示体外实验中可能出现的大量伪像，进一步阐述了体内实验的实用性。
