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An application of a dynamic thermography for studying a relation between thermal and mechanical activities of a skeletal muscle during a static load

机译:动态热成像技术在研究静态负荷下骨骼肌热活动与机械活动之间的关系的应用

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摘要

A thermal distribution provides useful information of physiological and pathological processes. However, only a static thermography was applied in the most of medical studies. This paper shows an example of application of a dynamic thermography to study a physiological activity of a skeletal muscle. The goal of the presented work was to study a putative relationship between mechanical and thermal activity of the quadriceps during a static submaximal load. During a strain a dynamic temperature distribution on a thigh surface and a force moment of a knee erector were registered. The performed analysis used a time-dependent mean temperature, a time-dependent standard deviation and an impulse of a force moment. Moreover, we analyzed of autocorrelation functions to compare the dynamics of these parameters. Finally, we showed the nonlinear, statistically significant relationship between spatial-temporal variability of temperature and the force developing by a concentrative contracted quadriceps. A possible biological interpretation of the identified relation is also proposed taking the described mathematical model of muscle heat transfer into account.
机译:热分布提供了生理和病理过程的有用信息。但是,在大多数医学研究中仅应用了静态热像仪。本文展示了一个应用动态热成像技术研究骨骼肌生理活动的例子。提出的工作的目的是研究在静态亚最大负荷期间股四头肌的机械和热活动之间的推定关系。在拉伸过程中,记录了大腿表面的动态温度分布和膝盖直立的力力矩。进行的分析使用时间相关的平均温度,时间相关的标准偏差和力矩的脉冲。此外,我们分析了自相关函数以比较这些参数的动态。最后,我们显示了温度的时空变化与集中收缩的股四头肌产生的力之间的非线性统计显着关系。考虑到所描述的肌肉热传递的数学模型,还提出了对所识别关系的可能的生物学解释。

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