For a long time, the doctor's advice on kidney disease is generally limited activity, because during acute exercise, there will be renal blood flow and glomerular filtration rate decreased. However, in recent years, many studies have found that long-term chronic exercise can improve cardiovascular function in patients with nephropathy, hypertension, hyperlipidemia and anemia. Moreover, it can increase the patient's maximum oxygen consumption, enhance physical strength, improve nutritional status and quality of life.
Therefore, the key of the problem is how to avoid weaknesses, "moderate" and "reasonable" physical exercise, rather than limit the movement of patients.
Generally speaking, the appropriate physical exercise can enhance the body, so that the body function, chronic nephritis patients in stable condition, you can combine their physical condition, select the appropriate physical exercise, but don’t get too tired.
When there is a lot of hematuria, proteinuria, severe edema and high blood pressure, should stay in bed, this time exercises are harmful to the kidneys. Because when the body is in the state of exercise, renal blood flow, glomerular filtration rate and water and salt excretion decreased, the movement of sympathetic nerve increased, which will lead to increased blood pressure, exercise body acid metabolites produced increased, these substances will increase the permeability of blood vessels, glomerular congestion, leading to urine, urine protein increased, the patient's symptoms, signs will aggravate.
When the condition is alleviated, some high safety, small intensity of exercise, such as slow walking, tai chi, soft gymnastics, doorball and other sports, generally do not make the patient's symptoms, signs, laboratory indicators have obvious changes.
But if it is strenuous exercise, due to renal small arterial vasoconstriction, reduced renal blood supply, resulting in insufficient oxygen supply of the kidneys, cell function decreased, so that the permeability of renal corneal filtration membrane increased, the protein is very easy the kidneys of the filter through the membrane, so there is protein in urine, kidney disease patients usually do not exercise when there is urine protein, if have strenuous exercise it’s more prone to proteinuria, red blood cells will also increase through the filter membrane leakage, the patient's original symptoms will aggravate with the amount of activity has increased.