| 摘要: | The purpose of this study was to investigate the effects of a 24 hours ultramarathon race on the runner's liver function. Eleven participants' (average age 45.1±8.77 yr, height 166.8±6.23cm, weight 60.6±6.96kg) blood samples were obtained before, at the end, after 48 hours, and 9 days after the 2002 International 24h Race IAU Asia 24-Hour Championship for standard blood biochemical test. The results showed that at the end of race, runners' total-bilirubin (BIL-T) and direct-bilirubin (BIL-D) increased significantly (p＜.05), alkaline (ALP), GOT, GPT, LDH significantly increased 1.2, 14.5, 3.4, 3.8 folds respectively, total protein (TP), ALB, GLO, γ-GT did not change significantly. Forty-eight hours after the race, GOT, GPT, LDH were a little decreased but still 7.3, 3.6, 3.1 times higher than the original level. TP, ALB and GLO were decreased significantly, BIL-T, BIL-D, and ALP recovered to the original level before the race. Nine days after the race, most of the functional indexes recovered to standard levels, but the TP and ALB were still significantly lower than the original level. Working amounts were positively related to liver damage level. According to the results we concluded that after 24 hours ultramarathon race, runners' increasing liver enzyme level revealed the damage of liver cells, but the increasing BIL should be due to the higher removal rate of declined red blood cells and not due to the mean blockage of bile duct. More working amount induced more damage to the liver, but it could recover after approximately 9 days. |
