The Influence of Oxidation Reduction Potential of Spa Spring Water on the Human Body
-
- TAKAHASHI Nobuhiko
- Narukoiin Clinic
-
- JIN Masaaki
- Informatics Laboratory, Tohoku Institute of Technology
-
- OHTSUKA Yoshinori
- Health and Sports Science, Graduate School of Education, Hokkaido University
Bibliographic Information
- Other Title
-
- 温泉水の酸化還元電位が人体に及ぼす影響について
Search this article
Abstract
Background: Spring water exhibits “aging”, characterized by increased oxidation reduction potential (ORP) and diminished therapeutic efficacy. However, the influence of spring water ORP on the body during bathing is unknown. Gout has been treated by spa bathing and by acupuncture, as well as pharmacologically. We accordingly examined the relationship between ORP and uric acid excretion, and that between ORP and ryodoraku current, which is closely related to acupuncture.<br>Design: Three groups of three volunteers each bathed in a different solution; sulphur-containing spring water, bicarbonate-containing spring water, or tap water. Serial changes in uric acid excretion and ryodoraku were measured.<br>Results: Urinary uric acid: creatinine ratio and ryodoraku current increased after sulphur spring water bathing and diminished after tap water bathing. Urinary ORP was negatively correlated with urinary uric acid: creatinine ratio and urinary pH. Ryodoraku current and urine ORP changed in opposite directions.<br>Conclusion: Bathing water ORP affected urinary ORP, urinary uric acid excretion, and ryodoraku current. Urinary ORP was assumed to reflect interstitial fluid ORP, suggesting that uric acid excretion and ryodoraku current were affected by interstitial fluid ORP. These findings appeared to indicate that ORP influenced cell membrane potential because voltage-dependent transporters or channels exist in the kidney and epidermis. Moreover, as urinary ORP was negatively correlated with urinary pH, ORP seemed to electrically buffer pH. As these findings can be explained by the Nernst equation by which ORP is derived, ORP of spring water might electrically influence the organism during bathing.
Journal
-
- The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine
-
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 70 (2), 94-102, 2007
The Japanese Society of Balneology, Climatology and Physical Medicine
- Tweet
Details 詳細情報について
-
- CRID
- 1390001206569238528
-
- NII Article ID
- 10018756456
-
- NII Book ID
- AN00186245
-
- ISSN
- 18843697
- 00290343
-
- HANDLE
- 2115/44042
-
- NDL BIB ID
- 8709510
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- IRDB
- NDL
- CiNii Articles
-
- Abstract License Flag
- Disallowed