What is the main purpose of a warm-up before exercise?

The main purpose of a warm-up before exercise is to prepare the body for physical activity. A proper warm-up increases blood flow to the muscles, which enhances muscle temperature and flexibility, subsequently reducing the risk of injuries. It also enables the cardiovascular system to adjust gradually to increased activity levels. A warm-up typically includes dynamic movements that mimic the exercises to follow, ensuring that the body is adequately prepared for the demands of the workout.

While enhancing metabolism, burning calories, and focusing on mental readiness can be benefits or components of a well-rounded exercise routine, they are not the primary focus of a warm-up. The key objective is to ensure that the body is physically ready for the demands of more intense activity ahead.