Why is it important to gradually increase intensity during a warm-up?

Gradually increasing intensity during a warm-up is essential for preparing the body for higher activity levels. A proper warm-up allows the cardiovascular system to adapt by increasing heart rate and blood flow to the muscles, which enhances oxygen delivery. It also helps to raise the body temperature, making muscles more pliable and reducing the risk of injury. This approach prepares the neuromuscular system for the demands of more intense exercise by activating the muscles and joints that will be used, thus improving overall performance.

The rationale behind this practice is founded on the principle of readiness; as the body transitions from a state of rest to one of exertion, it's crucial for physiological adjustments to occur smoothly. Gradual increases in intensity facilitate these changes, ensuring that the body can perform safely and effectively during the ensuing workout or activity.