Vaziri A, Nayeb-Hashemi H, Akhavan-Tafti B
Department of Mechanical, Industrial and Manufacturing Engineering, Northeastern University, Boston, MA 02115, USA.
Comput Methods Biomech Biomed Engin. 2010;13(2):257-64. doi: 10.1080/10255840903170694.
A 3D finite element model of rib cage movement is developed and used to study the role of age-related costal cartilage and sternocostal joint calcification, as well as respiratory muscle weakness on the 'bucket-handle' movement of human rib. The volume displacement of the rib cage is related to changes in its circumference using an empirical equation presented by Agostoni et al. (1965, J Appl Physiol, 20:1179-1186). A systematic study is carried out to quantify the role of costal cartilage, sternocostal joint calcification and muscle weakness on the volume displacement of the rib cage. The results provide insight into some of the mechanisms underlying age-related changes in the respiratory system.
建立了胸廓运动的三维有限元模型，并用于研究与年龄相关的肋软骨和胸肋关节钙化以及呼吸肌无力对人肋骨“提桶柄样”运动的作用。利用阿戈斯托尼等人（1965年，《应用生理学杂志》，20:1179 - 1186）提出的经验方程，将胸廓的体积位移与其周长变化相关联。开展了一项系统研究，以量化肋软骨、胸肋关节钙化和肌无力对胸廓体积位移的作用。研究结果为呼吸系统与年龄相关变化的一些潜在机制提供了见解。
