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Table 4 Changes in Torso Skin Temperature, Torso Skin Blood Flow, and Sweat Rate in Torso

From: Modeling thermal responses in human subjects following extended exposure to radiofrequency energy

 

Change in Torso Skin Temperature, °C

Blood Flow in Torso Skin

Sweat Rate In Back, mg/(min cm2)

Exposure Conditions

Data*

Model

Data* Before/After 45 Min Exposure, arbitrary units

Model Before/After 45 Min Exposure, g/(100 ml tissue min)

Data* Before/After 45 Min. Exposure

Model Before/After 45 Min Exposure

2450 MHz 350 W/m2 31°C

1.9 (high back) 1.9 (low back)

2.0

70/105

4.5/11

0.1/0.4-0.6

0.03/0.09

450 MHz 240 W/m2 31°C

0.7 (high back) 0.5 (low back)

0.9

 

4.5/11

0.1/0.4

0.03/0.1

100 MHz 80 W/m2 31°C

-0.9 (high back) -1.3 (low back)

-0.3

60/60

4.5/10

0.2/0.7

0.03/0.1

  1. *Mean of 7 subjects. The experimental measurements of blood flow were performed using a Doppler probe whose readings are proportional to flow velocity of blood near the skin surface (not volumetric flow rate). No data were reported for torso skin blood flow in the cited references for the experiments with 450 MHz RF energy exposures.
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