A thermographic study of low-intensity phototherapeutic effects on the human body in situ was carried out. The feature of the work was the measurement of the dynamics of surface temperature changes in a bio-object for 40 min after the cessation of irradiation. The relaxation character of the temperature behavior with quasi-oscillating phenomena during the selected observation period has been established. An explanation of the observed phenomena with the involvement of literature data is proposed. It is shown that 15-min irradiation at a radiation intensity of 14mWcm⁻² is optimal for phototherapy at a wavelength of 640 nm. A conclusion was made about the possibility of considering changes in the local temperature of a bio-object as a correlated parameter to determine the optimal dose of radiation during phototherapy.

中文翻译：

---

使用热像仪分析光疗效果

进行了对人体低强度光疗作用的热成像研究。这项工作的特点是在停止照射后的40分钟内测量生物物体表面温度变化的动力学。建立了在选定观测期内具有准振荡现象的温度行为的弛豫特性。提出了一种在文献数据参与下对观察到的现象的解释。结果表明，以14mWcm ^-2的辐射强度照射15分钟最适合波长为640 nm的光疗。关于将生物对象的局部温度变化作为相关参数来确定光疗过程中最佳辐射剂量的可能性的结论。