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Warming efficacy of regional heating with different skin thickness of the body

机译：不同身体厚度的区域供暖的升温功效

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摘要

Many active external warming devices have been developed for medical treatment of perioperative hypothermia. Previous efficacy assessments for warming systems have generally compared different devices. This study compares the warming efficacy of regional heating at different sites of the body, and its relation to the thickness of subcutaneous adipose tissue. A total of 13 participants (men, 19-21 years) participated in 3 study groups, in each of which a resistive heating pad was placed on 1 of 3 sites of the body: the upper back, the lower back, and the abdomen. All participants were placed in a cold room with an ambient temperature adjusted to 21 ± 1°C to simulate an operating theater. Skin temperature distributions around the body, skin temperatures beneath the heating pad, and verbal analog score (VAS) values were recorded before and after warming. The subcutaneous adipose thickness of each site was measured using a skinfold technique. Subjective VAS values and body skin temperatures around the designated sensor areas revealed that warming efficacies varied depending on where the heating pad was placed. Efficacy was lowest when the heating pad was placed on the abdomen, where subcutaneous adipose was thickest. The VAS of the abdomen was significantly lower than that obtained from either the lower back or the upper back (p < 0.05). These results suggest that the warming efficacies of regional heating could vary with subcutaneous adipose thickness. The influence of the subcutaneous adipose layer on heat transfer warrants further investigation for warming applications.
机译：已经开发出许多用于治疗围手术期体温过低的主动外部加热装置。先前对加热系统的功效评估通常比较了不同的设备。这项研究比较了身体不同部位局部加热的加热功效，以及它与皮下脂肪组织厚度的关系。共有13位参与者（男性，19-21岁）参加了3个研究组，每个研究组均在身体的三个部位（上背部，下背部和腹部）中的一个部位放置了电阻加热垫。将所有参与者放置在环境温度调整为21±1°C的冷藏室中，以模拟手术室。在加热之前和之后，记录人体周围的皮肤温度分布，加热垫下面的皮肤温度以及口头模拟评分（VAS）值。使用皮褶技术测量每个部位的皮下脂肪厚度。主观的VAS值和指定传感器区域周围的人体皮肤温度表明，加热效果根据加热垫的放置位置而有所不同。将加热垫放在腹部（皮下脂肪最厚）时，功效最低。腹部的VAS显着低于从下背部或上背部获得的VAS（p <0.05）。这些结果表明，局部加热的加热效果可能随皮下脂肪厚度的变化而变化。皮下脂肪层对热传递的影响值得进一步研究以用于加热应用。

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