What is the purpose of a cool-down after physical activity?

The purpose of a cool-down after physical activity is to gradually lower heart rate and prevent dizziness. During intense exercise, the body works hard to supply oxygen to the muscles, resulting in an elevated heart rate and blood pressure. When exercise suddenly stops, there can be a rapid drop in heart rate and blood flow. A proper cool-down, which typically includes lower-intensity activities and stretching, allows the body to transition back to a resting state more safely and effectively.

This gradual decrease helps prevent potential issues such as dizziness or fainting that can arise from abrupt cessation of intense activity. Additionally, a cool-down can aid in the removal of metabolic waste products from the muscles, contributing to recovery and reducing muscle soreness.

The other answer choices do not align with the primary physiological goals of a cool-down. For instance, increasing heart rate or enhancing muscle strength and hypertrophy are typically objectives associated with warm-ups or specific training protocols rather than the cool-down phase.