Generally speaking, exercise can be divided into two categories: one is static exercise, which lasts for a short time, but there are high-intensity exercises, such as weight lifting and ball throwing, which can only be carried out by using the energy stored in muscles; The other is dynamic exercise, which lasts for a long time and has little intensity, such as long-distance running, swimming and cycling. The human body must generate a lot of heat to maintain it. Therefore, the amount of exercise has a certain impact on the inspection items.
Due to strenuous exercise, a lot of sweat volatilization and changes in hormone content, the original body fluid balance inside and outside blood vessels was broken. For example, if the secretion of adrenal gland hormone increases and insulin decreases, some laboratory components in blood and other body fluids will change dramatically, and hyperhidrosis will also increase the serum protein content. The decrease of urine volume can increase the contents of creatinine and uric acid in blood and urine, which has a significant impact on the screening of cancer and urine.
The increase of creatine kinase activity in blood is an important item for doctors to diagnose myocardial infarction. People who don't pay attention to exercise at ordinary times, once they have some strenuous activities, creatine kinase will increase significantly. Although the increase of creatine kinase activity in people who exercise regularly after strenuous exercise is not particularly obvious, some of its components are higher than those in ordinary people. Therefore, doctors should not easily put on the "hat" of myocardial infarction.
It can be seen that exercise has an impact on various components in the blood, and strenuous exercise should be avoided before physical examination.