Abstract
Many physical condition control indices of athletes have been proposed. Blood tests and POMS tests can be mentioned. However, difficulties in measurement and the burden on subjects are problems. Saliva has been drawing attention. Because it is possible to collect noninvasively. Therefore, a measurement method using saliva is necessary. Components in oral cavity differ depending on part. Therefore, it is necessary to confirm the pH change for each site in the oral cavity. pH measurements in the oral cavity is performed by the existing method. However, it is only one measurement in the oral cavity. So, It requires the development of a wide range of measurement device capable. Therefore, Ag/AgIO3 electrode method is used. This is a method that imitates the antimony electrode method.
