Sports-related biochemical indexes in saliva

Objective To investigate the sports-related biochemical indexes in saliva. Methods Sports-related indexes in serum and saliva of 21 athletes were detected before and after sports using a 7600 Hitachi 7600 automatic biochemical analyzer and analyzed with CHISS software. Results The biochemical indexes including Na, Ca, GOT, LDH, CO₂, UN, UA, Cr, and CYSC in serum were higher after sports than before sports （P＜0.05）. The correlation coefficient for Na, Cr, CO₂, UA, CYSC, UN, and LDH in serum and saliva was 0.997 9, 0.988 4, 0.982 3, 0.911 9, 0.783 6, 0.754 6, and 0.516 6, respectively （P＜0.05）. Conclusion Biochemical indexes in saliva （Na, Cr, CO₂, UA, CYSC, UN, and LDH） can replace the corresponding indexes in serum to monitor the body functions of athletes.