The purpose of the pulse raiser in a warm-up is to...

• A. Stretch muscles
• B. Increase core temperature and heart rate
• C. Cool down joints
• D. Improve flexibility by static stretching

Answer: (B)

Raising the body's temperature and heart rate is the main aim of a pulse raiser in a warm-up. By engaging in light aerobic movement, blood flow to the muscles increases and body temperature climbs, which helps prepare the cardiovascular system for the upcoming effort. This makes metabolic reactions happen more quickly, improves nerve signaling, and increases joint lubrication, all of which help muscles work more efficiently and reduce the risk of injury when activity starts.

While stretching and flexibility work can be important, static stretching isn’t the purpose of the pulse raiser itself; those activities are typically done after the warm-up or as a separate component to improve flexibility.