During strenuous exercise, your heart rate increases, your muscles and capillaries expand, and your blood flow speeds up. If you stop to rest suddenly, muscle contraction stops and the blood in the muscles cannot flow back to the heart smoothly, which may cause palpitations, shortness of breath, dizziness, or even shock. Therefore, after strenuous exercise, you must rest and let your body slowly relieve stress to avoid fainting. Next, let’s understand what causes fainting after strenuous exercise. During or after exercise, sudden, transient loss of consciousness (LOC), loss of muscle tone, and falling due to temporary insufficient blood supply to the brain or changes in chemical substances in the blood are called sports sickness; there are mainly the following manifestations: Gravity shock syncope When athletes perform exercises mainly involving the lower limbs, the oxygen consumption of the lower limb muscles increases and the capillaries dilate. If they stop suddenly after intense exercise, a large amount of blood will accumulate in the blood of the lower limbs, resulting in insufficient blood supply to the brain and causing syncope, which is more common in track and field events. Symptoms include dizziness, weakness, nausea, pale complexion, cold limbs, and in severe cases, fainting. Hypotensive syncope When the horizontal position suddenly changes to an upright position. Impairment of muscle pump function and vascular regulation function can cause blood congestion in the lower limbs and transient cerebral ischemia, which often occurs after swimming competitions. Sudden LOC without prodromal symptoms Episodic muscle weakness Also known as sudden weakness, it refers to the sudden collapse caused by the temporary damage to the anti-gravity of the limbs due to the decrease in the reaction threshold of the central nervous system. Often seen in rowing competitions. The athlete finished the race on the left and became exhausted and weak after (0 minutes. Then he fainted. The fainting lasted only a few seconds. There are many reasons for fainting after strenuous exercise. It is recommended that everyone must pay attention to it. If the symptoms of dizziness after exercise occur for a long time, you must actively check and treat it. The editor also wants to remind everyone that after strenuous exercise, you must slow down slowly and never stop all at once. This can easily lead to blood circulation problems, thereby causing dizziness symptoms. |
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