Haralambie G, Senser L
Eur J Appl Physiol Occup Physiol. 1980;43(2):115-25. doi: 10.1007/BF00422442.
Sixteen young adults were investigated before, immediately after and 24 h after swimming 5,200 +/- 618 m in 90 min. Mean pulse rate at the end of exercise was 151.3 min-1; skin and rectal temperature both slightly increased. Except for a marked leukocytosis, no changes were observed in other blood parameters (hematocrit, hemoglobin, erythrocytes). Serum enzyme activities showed (except for triosephosphate dehydrogenase) marked increases which in the case of creatine kinase and of malate dehydrogenase did not return to preexercise level on the next day. No hypoglycemia occurred in any of the subjects. Blood lactate increased to 4.2 mmol/l at the 15th min of exercise and at the end was still slightly above the resting value. Free fatty acids, free glycerol, 3-hydroxybutyrate, serum urea and uric acid rose markedly after swimming, whereas alpha-amino nitrogen, triglycerides, and serum magnesium significantly decreased. The electrical excitability of the two investigated muscles (M. vastus med. quadr. and M. deltoides) showed opposite changes, which was ascribed to their different involvement during swimming.
对16名年轻人在90分钟内游完5200±618米之前、刚游完之后以及游完24小时后进行了调查。运动结束时的平均脉搏率为151.3次/分钟；皮肤温度和直肠温度均略有升高。除了明显的白细胞增多外，其他血液参数（血细胞比容、血红蛋白、红细胞）均未观察到变化。血清酶活性（磷酸丙糖脱氢酶除外）显示明显升高，肌酸激酶和苹果酸脱氢酶在第二天未恢复到运动前水平。所有受试者均未发生低血糖。运动第15分钟时血乳酸升至4.2毫摩尔/升，运动结束时仍略高于静息值。游泳后游离脂肪酸、游离甘油、3-羟基丁酸、血清尿素和尿酸显著升高，而α-氨基氮、甘油三酯和血清镁显著降低。所研究的两块肌肉（股内侧肌和三角肌）的电兴奋性呈现相反变化，这归因于它们在游泳过程中的不同参与情况。
