游泳对蛋白质降解的影响：3-甲基组氨酸和肌酐排泄量

Effect of swimming on protein degradation: 3-methylhistidine and creatinine excretion.

作者信息

Mussini E, Colombo L, De Ponte G, Calzi M, Marcucci F

出版信息

Biochem Med. 1985 Dec;34(3):373-5. doi: 10.1016/0006-2944(85)90101-2.

Abstract

The effect of 5-km noncompetitive swimming (moderate exercise) and 2-km competitive speed swimming (intensive exercise) on protein breakdown was studied in a group of young male volunteers (16-20 years old) who followed a 3-MH-free diet throughout the study. Urinary 3-MH and creatinine were determined over a period of 24 and 48 hr as an index of protein degradation. Basal 3-MH levels in the two groups of swimmers were 2.85 and 3.07 mumole X kg-1 X day-1. Mean rates of 3-MH excretion were, respectively, 1.54 and 1.94 mumole X kg-1 X day-1 for the 48 hr after moderate exercise and the 24 hr after intensive exercise. The decrease in 3-MH urinary excretion was still evident when calculated as the urinary 3-MH-to-creatinine ratio.

摘要

在一组年轻男性志愿者（16 - 20岁）中研究了5公里非竞争性游泳（适度运动）和2公里竞争性快速游泳（高强度运动）对蛋白质分解的影响，这些志愿者在整个研究过程中遵循无3 - MH饮食。在24小时和48小时内测定尿3 - MH和肌酐，作为蛋白质降解的指标。两组游泳者的基础3 - MH水平分别为2.85和3.07微摩尔×千克⁻¹×天⁻¹。适度运动后48小时和高强度运动后24小时的3 - MH排泄平均速率分别为1.54和1.94微摩尔×千克⁻¹×天⁻¹。以尿3 - MH与肌酐比值计算时，尿3 - MH排泄的减少仍然明显。