How long is the warm-up stage of an exercise session?

• A. 5 minutes
• B. 15 minutes or less
• C. 20-30 minutes
• D. 40 minutes

Answer: (B)

Warm-ups are about gradually increasing activity to ready the body for the main workout. A warm-up should be brief and progressive, typically up to 15 minutes. The aim is to raise heart rate and core temperature, increase blood flow to working muscles, lubricate joints, and prime the nervous system with dynamic movements. Keeping it within about 5 to 15 minutes helps you gain these benefits without starting the main workout fatigued. Shorter warm-ups of around 5 minutes work well for easy sessions or lighter workouts, while extending toward the upper end is reasonable in cold environments or when preparing for high-intensity efforts. But going beyond roughly 15 minutes can eat into training time and reduce performance in the main work, which is why this duration is the most appropriate.