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Change of salivary oxidation-reduction potential (sORP) during cycling exercise

Bulletin of the Faculty of Education, Yamaguchi University Volume 63 Page 123-131
published_at 2014-01-31
C010063000312.pdf
[fulltext] 1.29 MB
Title
運動時の唾液酸化還元電位の変化
Change of salivary oxidation-reduction potential (sORP) during cycling exercise
Creators Shiota Masatoshi
Creators Ueno Kouji
Creators Matsubara Shigeru
Creators Matsuo Eriko
Creators Suzuki Masato
Source Identifiers
Creator Keywords
Saliva salivary ORP pH peroxidase uric acid
Purpose: There is little information concerning the changes which occur in salivary compositions in response to exercise. Therefore, we investigate that the changes in markers of salivary oxidation-reduction status. Methods: Seven healthy males completed the exercise by bicycle ergo-meter of 70%HR reserve for 30 min. Saliva samples were collected before, immediately after, andl, 6 and 24 h after exercise. Results and Discussion: Although the interaction effect is significant in salivary secretion rate, amylase and lysozyme activities, there were uncertain whether or not the changes in salivary markers are affected by exercise. Salivary ORP gradually decreased alter exercise, and salivary peroxidase (Pox) and uric acid were no changes by exercise. There is a positive correlation between the salivary pH and the peroxidase (r=0.633, p < 0.01), and the uric acid (r=0.559, p < 0.01). Uric acid, uie mosi important antioxidant molecule in saliva, contribute approximately 70% of the total salivary antioxidant capacity, and peroxidase catalyzed the reaction to tne hypothiocynous acid from thiocynate which is the electron-donating component. These results suggest that exercise in this experiment conditions is not affected on the oxidation-reduction status in saliva.
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学教育学部
Date Issued 2014-01-31
File Version Version of Record
Access Rights open access
Relations
[ISSN]0286-0597
[NCID]AN00240238
Schools 教育学部