Muscle temperature decreases, perspiration rate goes down causing the skin to feel cool, heart rate goes down, and respiration rate goes down. It is obvious that each activity prepares the body for what comes next. It is amazing how much mental preparation or the absence of it can affect performance, even in situations when the upcoming activity is to be performed at a recreational level. As stated before, muscle temperature, perspiration rate, heart rate, and respiration rate will increase during the warm-up. The body is then ready to move safely into the next stage, which is more intense activity.
Cool muscles prefer to tear rather than stretch.
As a result of being stretched, muscles can respond to the demands that will be placed on them with a minimal chance of injury. Moving the joints through light activity spreads the natural protective fluids around bone ends and makes movement easier and more enjoyable. Nausea, dizziness, and fainting are common in individuals who stop activity too quickly. Brisk walking and slow jogging keep the blood flowing through the muscles. This causes muscle cramping, stiffness, and soreness.