There is a great difference in latitude before and after fitness training, and the latitude state of muscles at rest is very different from that during exercise. Why?
It must be different before and after exercise. There is a big difference in congestion before and after muscle exercise. During exercise, the heart sends blood to muscles, transports nutrients and excretes waste. After exercise, the body gradually tends to be flat, the beating frequency of the heart decreases accordingly, and blood returns to the heart.