Zambraski E J, Tipton C M, Tcheng T K, Jordon H R, Vailas A C, Callahan A K
Med Sci Sports. 1975 Fall;7(3):217-20.
During the 1973 and 1974 state high school wrestling championships, urine samples were obtained from wrestlers prior to the weigh-in, immediately before they wrestled, and immediately after the subjects had completed their match. Specific gravity, osmolarity, pH, sodium and potassium determinations, as well as qualitative tests for protein and ketones, indicated that the wrestlers were in a dehydrated state at the time of weigh-in. After the five hour interim between the weigh-in and the first match, all but the pH measure remained essentially unchanged. This absence of significant changes in the urinary profile suggests that the wrestlers were unable to rehydrate during the five hour time period between the weigh-in and the first match and that they were competing in a dehydrated state. Urine samples collected after competition were significantly lower in specific gravity, osmolarity and potassium concentration than samples obtained before the match. The urinary potassium levels were of interest because at the three conditions (weigh-in, before the first match, after competition) they were 73-182% higher than values reported for high school students who were nonwrestlers.
在1973年和1974年的州高中摔跤锦标赛期间，在称重前、即将摔跤前以及选手完成比赛后立即采集了他们的尿液样本。比重、渗透压、pH值、钠和钾的测定，以及蛋白质和酮体的定性检测表明，摔跤选手在称重时处于脱水状态。在称重和第一场比赛之间的五个小时间隔后，除了pH值测量外，其他各项指标基本保持不变。尿液指标没有显著变化表明，摔跤选手在称重和第一场比赛之间的五个小时内无法补充水分，并且他们是在脱水状态下进行比赛的。比赛后采集的尿液样本的比重、渗透压和钾浓度明显低于比赛前采集的样本。尿液钾水平令人关注，因为在三个阶段（称重时、第一场比赛前、比赛后），它们比非摔跤高中生报告的数值高出73%-182%。
