Abstract
The average pattern of urinary mucoprotein (MP) excretion was assessed in four subjects during 104 workdays. The subjects were performing their usual tasks connected with their jobs. On alternate days they were exposed to an additional treadmill exercise for one hour. On days with treadmill excerise MP excretion was elevated; however, the total excess MP excretion was not significantly different whether the subjects walked at speeds of 2.4 mph or 3.5 mph. On the other hand, the rate of MP excretion (mg/hr) increased more during the 3.5 mph walk than during the 2.4 mph. This suggests that the measurement of the urinary MP excretion rate during physical exercise may be a useful method to determine the magnitude of the stress imposed by a workload upon an individual subject.
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