Three-dimensional finite element model to study temperature distribution in peripheral layers of human limbs immediately after physical exercise

作     者：Babita Kumari Neeru Adlakha 

作者机构：Department of Applied Mathematics and Humanities S. V. National Institute of Technology Surat Gujarat 395007 India 

出 版 物：《International Journal of Biomathematics》 (生物数学学报（英文版）)

年 卷 期：2017年第10卷第4期

页      面：173-188页

核心收录：

学科分类：0701[理学-数学] 070101[理学-基础数学] 

主　　题：Metabolic heat generation blood mass flow rate thermal conductivity finiteelement method. 

摘      要：The physical exercise imposes challenges on the human thermoregulatory system, as heat exchange between the body and environment is substantially impaired, which can lead to decrease in performance and increased risk of heat illness. In view of above a three-dimensional finite element model is proposed to study the effect of different inten- sities of physical exercise on temperature distribution in peripheral regions of human limbs under moderate climatic conditions. Human limb is assumed to have a cylindri- cal cross-section. The peripheral region of the human limb is divided into three natural components, namely epidermis, dermis and subdermal tissues. The model incorporates the effect of important physiological parameters like blood mass flow rate, metabolic heat generation, and thermal conductivity of the tissues. Appropriate boundary condi- tions have been framed based on the physical conditions of the problem. The model is transformed into the discretized variational form and finite element method （FEM） has been employed to obtain the solution. The numerical results have been used to obtain the temperature profiles in the region immediately after exercise for an unsteady state case. The thermal information generated from the model can be useful for developing protocols for improving performance of sportsmen, military persons and labor-intensive workers.