If you drink glucose while running, it is beneficial to drink glucose 30 minutes before the race, which is beneficial to supplement blood sugar concentration and improve muscle contractility. For the middle and long distance running over 400 meters, it is useless to drink glucose, because it needs to continuously output glucose, which has a great influence on the liver function of the body. Drinking glucose can only temporarily improve blood sugar levels, but not continuously.
Drink some high-concentration glucose water 30 minutes before the game. Glucose is a monosaccharide, which can be quickly digested and absorbed and directly acts on muscles to form muscle glycogen, which is the source of energy. Don't drink other drinks while running. Drink white water when you are thirsty. Don't eat any food for 30 minutes before the game. Just take it with water.
The concentrations of glucose for injection in hospitals are different, such as 5%, 10%, 50%, etc. The glucose concentration of soaking water should be controlled by yourself. According to a spoonful of a kilo of water (500g), a spoonful is about 5g.