Engaging in moderate exercise daily can enhance immune function and strengthen the body. However, some people experience symptoms of hypoglycemia such as dizziness, headache, palpitations, tremors, and fatigue after exercising, and some even experience these symptoms during exercise. So, what are the causes of post-exercise hypoglycemia?
Rapid depletion of carbohydrates during exercise
During exercise, the process of fat consumption and conversion is complex, while the consumption and conversion of carbohydrates are relatively simple. Therefore, carbohydrates are depleted before fat and the energy provided by fat is much greater than that provided by carbohydrates. Carbohydrates mainly serve as energy storage substances. When fat is consumed, it is first converted into carbohydrates and then oxidized to release energy. If there is excess carbohydrates, they will be broken down first, resulting in hypoglycemia.
Hypoglycemia caused by exercising on an empty stomach
The likelihood of experiencing hypoglycemia is higher after intense exercise on an empty stomach. During exercise, the body requires blood glucose for energy, and food digestion is the source of blood glucose. If one exercises on an empty stomach, especially during intense exercise, blood glucose will be rapidly depleted. If there is no food digestion to replenish blood glucose, hypoglycemia symptoms will occur.
Blood glucose drop caused by exercising after taking diabetes medication
People with diabetes have poor blood glucose regulation and experience significant fluctuations. If exercise is performed after taking medication and blood glucose levels drop, there is a high risk of hypoglycemia, resulting in symptoms such as palpitations, cold sweats, dizziness, and difficulty opening the eyes.
Exercise-induced hypoglycemia after injecting short-acting insulin
For individuals with diabetes, exercise after injecting short-acting insulin increases blood glucose consumption. Additionally, exercise increases blood circulation at the injection site, leading to faster absorption of insulin and a higher likelihood of hypoglycemia symptoms. Therefore, it is not advisable to engage in exercise approximately one hour after injecting short-acting insulin.
Can you exercise with hypoglycemia?
When experiencing hypoglycemia, it is advisable to reduce the intensity of exercise as vigorous exercise can further deplete blood glucose and worsen hypoglycemia symptoms.
However, reducing exercise intensity does not mean that exercise is prohibited. By adhering to scientific exercise methods, one can participate in exercise within 1 to 2 hours after a meal when blood glucose levels are relatively higher. As long as the exercise intensity is not excessive and the duration is not prolonged, the risk of hypoglycemia is minimized. It is important to consume a meal promptly after exercising.
