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Cutaneous Blood Flow Increased by CO

Water Foot Bathing Visualized with Laser Doppler Imaging

Shoichi O

, Daisuke T

, Hideyuki O

, Yuhki S

Shigeo I

, Yukio K

, and Yuhkoh A

+Faculty of Engineering, Hosei University

,Integral Co., LTD

-Research Institute for Health Resort Medicine

Abstract

Artificial CO^, spring water (CO^, concentration of +,***ppm) and tap water were prepared in the temperature range of-.;to.,;for foot bathing. Laser doppler imaging of cutaneous blood flow in the foot immersed for foot bathing made it possible to visualize the two-dimensional spatial variation of the perfusion while being not only noninvasive but also non-touch. Therefore, it reduced the risk of influence on skin perfusion mechanically, being di#erent from the method used so far. This method revealed that the cutaneous blood flows by CO^,water foot bathing were increased from nearly two to four times in comparison with those by tap water foot bathing.

In Japan, natural CO^, spring waters are rare. However, we proposed that develop- ment of a co-generation system with hydrogen cell evolved exothermic heat, and hydro- gen and carbon dioxide gases makes it possible to prepare and perform easily artificial CO^,bathing therapy, with a reductive characteristic analogous to natural spring water, at home and elsewhere.

Key words : CO^, thermal spring water, Laser doppler imaging, Cutaneous blood flow, Visualization, Fuel cell.

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Fig.0 Cutaneous blood flows of foot by CO^,bathing (CO^, concentration of+,***ppm) and tap water bathing. at-.ῌfor a,-years old female.

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Fig.3 Relationship between ORP and pH in artificial CO^, spring waters dissolved CO^, and CO^, with ,volῌ H^,using multi layered composite membrane hollow fiber at.*ῌ.

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Fig.+ CO^,bubbles on human skin and human skin turned into red by natural CO^,bathing (temperature :-.ῌand CO^,concentration :+,-**ppm)

Fig., Laser doppler imaging of cutaneous blood flow of foot measured in air.

Fig.- Laser doppler imaging of cutaneous blood flow of foot after CO,bathing (CO,concentration of+,***ppm) and tap water bathing of ten minutes for a,-year old female.

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Fig./ Laser doppler imaging of cutaneous blood flow of foot by CO^,bathing (CO^,concentration of +,***ppm) and tap water bathing at -.ῌfor a ,- year old female.

Fig.2 Diagrammatic representation of relationships between ORPand pH in natural and artificial CO^,spring water, in human skin, and in tap water.

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